CN116017660A - Optical module power adjustment method, optical module and storage medium - Google Patents

Optical module power adjustment method, optical module and storage medium Download PDF

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Publication number
CN116017660A
CN116017660A CN202111226701.3A CN202111226701A CN116017660A CN 116017660 A CN116017660 A CN 116017660A CN 202111226701 A CN202111226701 A CN 202111226701A CN 116017660 A CN116017660 A CN 116017660A
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China
Prior art keywords
optical module
optical
power
unit
module
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CN202111226701.3A
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Chinese (zh)
Inventor
张德朝
王东
李允博
蔡谦
李晗
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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Priority to CN202111226701.3A priority Critical patent/CN116017660A/en
Priority to PCT/CN2022/126505 priority patent/WO2023066349A1/en
Publication of CN116017660A publication Critical patent/CN116017660A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/20—TPC being performed according to specific parameters using error rate

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)

Abstract

The invention discloses an optical module power adjustment method, an optical module and a storage medium, comprising the following steps: the second optical module receives the sending optical power of the sending unit of the first optical module and/or the receiving optical power of the receiving unit of the first optical module, which are sent by the first optical module, wherein the second optical module is positioned in the WDM equipment, and the first optical module is positioned in the AAU; the second optical module adjusts the transmitting optical power of the transmitting unit of the first optical module and/or the transmitting unit of the second optical module according to one of the error rate, the packet loss rate, the receiving optical power of the receiving unit of the first optical module and the receiving optical power of the receiving unit of the second optical module or the combination thereof. By adopting the invention, the optical power of the optical module can be increased or reduced as required when the application scene is changed, and the flexible adjustment of the luminous power can be supported. The channel is not additionally occupied, and resources are saved.

Description

Optical module power adjustment method, optical module and storage medium
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an optical module power adjustment method, an optical module, and a storage medium.
Background
Fig. 1 is a schematic diagram of a typical scenario of 5G forwarding, and as shown in the figure, in a 5G forwarding network, a C-RAN (centralized radio access network ) architecture is expected to be a typical scenario. Under the architecture, when the optical fiber resources are abundant and the centralized sites are fewer, an AAU (active antenna Unit ) can directly connect DU (Distributed Unit) equipment through an optical fiber; in the area of shortage of optical fiber resources, the wavelength division multiplexing technology is adopted to save the optical fiber resources, and the AAU side and the DU side are provided with optical multiplexers/demultiplexers, and the AAU side optical module and the DU side optical module are respectively connected with the optical multiplexer/demultiplexer.
The light modules used in the existing AAU/DU have light-emitting power in a certain section of interval of normal distribution, and the specific light-emitting power value depends on the manufacturing process of the laser. The core indexes of the optical module such as the transmitting power, the receiving sensitivity and the like are required to strictly meet the requirement of the link power budget.
The prior art has the defects that the luminous power of the optical module adopted in the forward transmission cannot be adjusted as required.
Disclosure of Invention
The invention provides an optical module power adjustment method, an optical module and a storage medium, which are used for solving the problem that luminous power of an optical module adopted in the front transmission cannot be adjusted as required.
The invention provides the following technical scheme:
an optical module power adjustment method, comprising:
the second optical module receives the sending optical power of the sending unit of the first optical module and/or the receiving optical power of the receiving unit of the first optical module, which are sent by the first optical module, wherein the second optical module is positioned in the WDM equipment, and the first optical module is positioned in the AAU;
the second optical module adjusts the transmitting optical power of the transmitting unit of the first optical module and/or the transmitting unit of the second optical module according to one of the error rate, the packet loss rate, the receiving optical power of the receiving unit of the first optical module and the receiving optical power of the receiving unit of the second optical module or the combination thereof.
In an implementation, the second optical module adjusts the output optical power of the transmitting unit of the first optical module and/or the transmitting unit of the second optical module according to one of the error rate, the packet loss rate, the received optical power of the receiving unit of the first optical module, the received optical power of the receiving unit of the second optical module, or a combination thereof, and includes:
if the receiving power of the first optical module is lower than a preset threshold value, and/or the error rate is higher than the preset threshold value, and/or the packet loss rate is higher than the preset threshold value, adjusting the output optical power of the transmitting unit of the second optical module to transmit optical power;
and if the receiving power of the second optical module is lower than a preset threshold value, and/or the error rate is higher than the preset threshold value, and/or the packet loss rate is higher than the preset threshold value, adjusting the output optical power of the transmitting unit of the first optical module to transmit optical power.
In practice, further comprising:
if the received power of the first optical module is lower than a preset threshold value, and/or the error rate is higher than the preset threshold value, and/or the packet loss rate is higher than the preset threshold value, calculating a link budget by comparing the transmitted optical power of the second optical module and the received optical power of the first optical module, and if the link budget is improved until the original light-emitting power of the second optical module can meet the link transmission capability, adjusting the output optical power of a transmitting unit of the second optical module to the power before adjustment;
If the received power of the second optical module is lower than a preset threshold value, and/or the error rate is higher than the preset threshold value, and/or the packet loss rate is higher than the preset threshold value, calculating the link budget by comparing the transmitted optical power of the first optical module and the received optical power of the second optical module, and if the link budget is improved until the original light-emitting power of the first optical module can meet the link transmission capability, adjusting the output optical power of the transmitting unit of the first optical module to the power before adjustment.
In implementation, the transmitting optical power of the transmitting unit of the first optical module and/or the receiving optical power of the receiving unit of the first optical module, which are transmitted by the first optical module, are transmitted through OAM information of the OAM channel.
In an implementation, adjusting the output optical power of the transmitting unit of the second optical module to transmit the optical power includes:
and the main control unit of the active WDM equipment calculates the light-emitting power value of the second optical module to be lifted or lowered, writes the light-emitting power value into a second optical module register and controls the adjustment of the optical power.
In an implementation, adjusting the output optical power of the transmitting unit of the first optical module to transmit the optical power includes:
the main control unit of the active WDM equipment calculates the light-emitting power value of a first optical module to be lifted or lowered, writes the light-emitting power value into an OAM frame of a second optical module, sends the light-emitting power value to the first optical module, and is used for the first optical module to demodulate out OAM information of the second optical module, writes the OAM information into a first optical module register and controls the adjustment of the light power.
In practice, the output optical power of the emission unit is adjusted by adjusting the temperature value and/or adjusting the laser bias point.
In an implementation, when adjusting the transmission optical power of the transmitting unit of the first optical module and/or the transmitting unit of the second optical module, the method further includes:
an alarm indication is issued.
An optical module power adjustment method, comprising:
the first optical module detects the transmitting optical power of the transmitting unit of the first optical module and/or the receiving optical power of the receiving unit of the first optical module;
the first optical module sends the sending optical power of the sending unit of the first optical module and/or the receiving optical power of the receiving unit of the first optical module to the second optical module, so that the second optical module can adjust the sending optical power of the sending unit of the first optical module and/or the sending optical power of the sending unit of the second optical module; wherein the second optical module is located in the WDM equipment and the first optical module is located in the AAU.
In practice, further comprising:
the first optical module adjusts the transmitting optical power of the transmitting unit of the first optical module according to the power adjusting information transmitted by the second optical module.
In an implementation, the first optical module adjusts the transmitting optical power of the transmitting unit of the first optical module according to the power adjustment information transmitted by the second optical module, including:
The first optical module receives OAM information sent to the first optical module by the second optical module;
the first optical module demodulates the OAM information of the second optical module, writes the OAM information into the first optical module register and controls the adjustment of optical power.
In implementation, the transmitting optical power of the transmitting unit of the first optical module and/or the receiving optical power of the receiving unit of the first optical module, which are transmitted by the first optical module, are transmitted through OAM information of the OAM channel.
In practice, the output optical power of the emission unit is adjusted by adjusting the temperature value and/or adjusting the laser bias point.
In an implementation, when adjusting the transmission optical power of the transmitting unit of the first optical module, the method further includes:
an alarm indication is issued.
A second optical module, located at a WDM, comprising:
a processor for reading the program in the memory, performing the following process:
receiving the transmitting optical power of a transmitting unit of a first optical module and/or the receiving optical power of a receiving unit of the first optical module, which are transmitted by the first optical module, wherein the first optical module is positioned in the AAU;
adjusting the transmitting optical power of the transmitting unit of the first optical module and/or the transmitting unit of the second optical module according to one or a combination of the error rate, the packet loss rate, the receiving optical power of the receiving unit of the first optical module and the receiving optical power of the receiving unit of the second optical module;
And a transceiver for receiving and transmitting data under the control of the processor.
In an implementation, adjusting the output optical power of the transmitting unit of the first optical module and/or the transmitting unit of the second optical module according to one of the bit error rate, the packet loss rate, the received optical power of the receiving unit of the first optical module, the received optical power of the receiving unit of the second optical module, or a combination thereof includes:
if the receiving power of the first optical module is lower than a preset threshold value, and/or the error rate is higher than the preset threshold value, and/or the packet loss rate is higher than the preset threshold value, adjusting the output optical power of the transmitting unit of the second optical module to transmit optical power;
and if the receiving power of the second optical module is lower than a preset threshold value, and/or the error rate is higher than the preset threshold value, and/or the packet loss rate is higher than the preset threshold value, adjusting the output optical power of the transmitting unit of the first optical module to transmit optical power.
In practice, further comprising:
if the received power of the first optical module is lower than a preset threshold value, and/or the error rate is higher than the preset threshold value, and/or the packet loss rate is higher than the preset threshold value, calculating a link budget by comparing the transmitted optical power of the second optical module and the received optical power of the first optical module, and if the link budget is improved until the original light-emitting power of the second optical module can meet the link transmission capability, adjusting the output optical power of a transmitting unit of the second optical module to the power before adjustment;
If the received power of the second optical module is lower than a preset threshold value, and/or the error rate is higher than the preset threshold value, and/or the packet loss rate is higher than the preset threshold value, calculating the link budget by comparing the transmitted optical power of the first optical module and the received optical power of the second optical module, and if the link budget is improved until the original light-emitting power of the first optical module can meet the link transmission capability, adjusting the output optical power of the transmitting unit of the first optical module to the power before adjustment.
In implementation, the transmitting optical power of the transmitting unit of the first optical module and/or the receiving optical power of the receiving unit of the first optical module, which are transmitted by the first optical module, are transmitted through OAM information of the OAM channel.
In an implementation, adjusting the output optical power of the transmitting unit of the second optical module to transmit the optical power includes:
and the main control unit of the active WDM equipment calculates the light-emitting power value of the second optical module to be lifted or lowered, writes the light-emitting power value into a second optical module register and controls the adjustment of the optical power.
In an implementation, adjusting the output optical power of the transmitting unit of the first optical module to transmit the optical power includes:
the main control unit of the active WDM equipment calculates the light-emitting power value of a first optical module to be lifted or lowered, writes the light-emitting power value into an OAM frame of a second optical module, sends the light-emitting power value to the first optical module, and is used for the first optical module to demodulate out OAM information of the second optical module, writes the OAM information into a first optical module register and controls the adjustment of the light power.
In practice, the output optical power of the emission unit is adjusted by adjusting the temperature value and/or adjusting the laser bias point.
In an implementation, when adjusting the transmission optical power of the transmitting unit of the first optical module and/or the transmitting unit of the second optical module, the method further includes:
an alarm indication is issued.
A second optical module, located at a WDM, comprising:
the second optical module receiving unit is used for receiving the sending optical power of the sending unit of the first optical module and/or the receiving optical power of the receiving unit of the first optical module, which are sent by the first optical module, wherein the first optical module is positioned in the AAU;
the second optical module adjusting module is used for adjusting the transmitting optical power of the transmitting unit of the first optical module and/or the transmitting unit of the second optical module according to one of the error rate, the packet loss rate, the receiving optical power of the receiving unit of the first optical module and the receiving optical power of the receiving unit of the second optical module or the combination thereof.
In an implementation, the second optical module adjusting module is further configured to adjust an output optical power of the transmitting unit of the first optical module and/or the transmitting unit of the second optical module according to one of an error rate, a packet loss rate, a received optical power of the receiving unit of the first optical module, a received optical power of the receiving unit of the second optical module, or a combination thereof, and includes:
If the receiving power of the first optical module is lower than a preset threshold value, and/or the error rate is higher than the preset threshold value, and/or the packet loss rate is higher than the preset threshold value, adjusting the output optical power of the transmitting unit of the second optical module to transmit optical power;
and if the receiving power of the second optical module is lower than a preset threshold value, and/or the error rate is higher than the preset threshold value, and/or the packet loss rate is higher than the preset threshold value, adjusting the output optical power of the transmitting unit of the first optical module to transmit optical power.
In implementation, the second optical module adjusting module is further configured to calculate a link budget by comparing the transmitted optical power of the second optical module and the received optical power of the first optical module if the received power of the first optical module is lower than a preset threshold, and/or the error rate is higher than a preset threshold, and/or the packet loss rate is higher than a preset threshold, and adjust the output optical power of the transmitting unit of the second optical module to the power before adjustment if the link budget is improved until the original optical power of the second optical module can meet the link transmission capability;
if the received power of the second optical module is lower than a preset threshold value, and/or the error rate is higher than the preset threshold value, and/or the packet loss rate is higher than the preset threshold value, calculating the link budget by comparing the transmitted optical power of the first optical module and the received optical power of the second optical module, and if the link budget is improved until the original light-emitting power of the first optical module can meet the link transmission capability, adjusting the output optical power of the transmitting unit of the first optical module to the power before adjustment.
In an implementation, the second optical module receiving module is further configured to receive a transmission optical power of a transmitting unit of the first optical module and/or a reception optical power of a receiving unit of the first optical module, where the first optical module transmits the OAM information through the OAM channel.
In an implementation, when the second optical module adjusting module is further configured to adjust the output optical power of the transmitting unit of the second optical module to transmit optical power, the second optical module adjusting module includes:
and the main control unit of the active WDM equipment calculates the light-emitting power value of the second optical module to be lifted or lowered, writes the light-emitting power value into a second optical module register and controls the adjustment of the optical power.
In an implementation, when the second optical module adjusting module is further configured to adjust the output optical power of the transmitting unit of the first optical module to transmit optical power, the second optical module adjusting module includes:
the main control unit of the active WDM equipment calculates the light-emitting power value of a first optical module to be lifted or lowered, writes the light-emitting power value into an OAM frame of a second optical module, sends the light-emitting power value to the first optical module, and is used for the first optical module to demodulate out OAM information of the second optical module, writes the OAM information into a first optical module register and controls the adjustment of the light power.
In an implementation, the second optical module adjusting module is further configured to adjust the output optical power of the transmitting unit by adjusting a temperature value and/or adjusting a laser bias point.
In practice, further comprising:
and the alarm module is used for sending out alarm indication when the transmitting power of the transmitting unit of the first optical module and/or the transmitting unit of the second optical module is adjusted.
A first optical module, located at an AAU, comprising:
a processor for reading the program in the memory, performing the following process:
detecting the transmitting optical power of the transmitting unit of the first optical module and/or the receiving optical power of the receiving unit of the first optical module;
transmitting the transmitting optical power of the transmitting unit of the first optical module and/or the receiving optical power of the receiving unit of the first optical module to the second optical module, so that the second optical module can adjust the transmitting optical power of the transmitting unit of the first optical module and/or the transmitting unit of the second optical module; wherein the second optical module is located in the WDM equipment;
and a transceiver for receiving and transmitting data under the control of the processor.
In practice, further comprising:
and adjusting the transmitting optical power of the transmitting unit of the first optical module according to the power adjusting information transmitted by the second optical module.
In an implementation, adjusting the transmission optical power of the transmitting unit of the first optical module according to the power adjustment information transmitted by the second optical module includes:
receiving OAM information sent to the first optical module by the second optical module;
Jie Diaochu the second optical module OAM information is written into the first optical module register to control the optical power adjustment.
In an implementation, the transmitted optical power of the transmitting unit of the first optical module and/or the received optical power of the receiving unit of the first optical module is transmitted through OAM information of the OAM channel.
In practice, the output optical power of the emission unit is adjusted by adjusting the temperature value and/or adjusting the laser bias point.
In an implementation, when adjusting the transmission optical power of the transmitting unit of the first optical module, the method further includes:
an alarm indication is issued.
A first optical module, located at an AAU, comprising:
the first optical module detection module is used for detecting the sending optical power of the sending unit of the first optical module and/or the receiving optical power of the receiving unit of the first optical module;
the first optical module sending module is used for sending the sending optical power of the sending unit of the first optical module and/or the receiving optical power of the receiving unit of the first optical module to the second optical module, and is used for the second optical module to adjust the sending optical power of the sending unit of the first optical module and/or the sending optical power of the sending unit of the second optical module; wherein the second optical module is located in the WDM equipment.
In practice, further comprising:
And the first optical module adjusting module is used for adjusting the transmitting optical power of the transmitting unit of the first optical module according to the power adjusting information transmitted by the second optical module.
In an implementation, when the first optical module adjusting module is further configured to adjust the transmission optical power of the transmitting unit of the first optical module according to the power adjustment information sent by the second optical module, the method includes:
receiving OAM information sent to the first optical module by the second optical module;
jie Diaochu the second optical module OAM information is written into the first optical module register to control the optical power adjustment.
In an implementation, the first optical module transmitting module is further configured to transmit, through OAM information of the OAM channel, a transmission optical power of a transmitting unit of the first optical module and/or a reception optical power of a receiving unit of the first optical module.
In an implementation, the first optical module adjusting module is further configured to adjust the output optical power of the transmitting unit by adjusting a temperature value and/or adjusting a laser bias point.
In practice, further comprising:
and the alarm module is used for sending out alarm indication when the transmitting light power of the transmitting unit of the first light module is adjusted.
A computer-readable storage medium storing a computer program for executing the optical module power adjustment method on the first optical module and/or the second optical module side.
The invention has the following beneficial effects:
in the technical solution provided in the embodiment of the present invention, the second optical module located in the WDM may receive the transmitting optical power of the transmitting unit and the receiving optical power of the receiving unit sent by the first optical module located in the AAU, and the functional module (e.g., the main control unit) located in the second optical module located in the WDM may adjust the output optical power of the transmitting unit of the first optical module or the second optical module according to one of the error rate, the packet loss rate, the receiving optical power of the receiving unit of the first optical module, the receiving optical power of the receiving unit of the second optical module, or a combination thereof. Because the local side optical module and the far-end optical module can dynamically calculate the optical power adjustment value of the optical module by transmitting optical power information, the optical power of the optical module can be increased or reduced as required when an application scene is changed, and flexible adjustment of the luminous power can be supported.
Furthermore, the temperature control unit can be controlled to adjust the temperature value and/or adjust the bias point of the laser, or directly adjust the output optical power of the transmitting unit, so that the transmitting optical power of the transmitting unit of the optical module can be correspondingly increased or decreased.
Furthermore, the optical power information of one end optical module can be transmitted to the other end optical module in a low-frequency OAM information mode, so that the channel is not additionally occupied, and resources are saved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a schematic diagram of a typical 5G forward scene in the background art;
fig. 2 is a schematic flow chart of an implementation of an optical module power adjustment method of a second optical module located in WDM according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of an implementation of an optical module power adjustment method of a first optical module located in an AAU according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an optical module architecture according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a system architecture including a first optical module and a second optical module according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a first optical module architecture according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a second optical module and a core unit in an active device according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a second optical module according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a first optical module according to an embodiment of the present invention.
Detailed Description
The inventors noted during the course of the invention that:
the two schemes of optical fiber direct connection and WDM (wavelength division multiplexing ) have larger link budget difference and different requirements on the luminous power of the optical module. At present, the luminous power of the optical module adopted in the forward transmission is determined when leaving the factory, and the on-line adjustment of the power is not supported. To reduce spare part types and share industry chains, optical modules of the same specification are generally adopted, such as a typical scenario facing a 10km link budget. In practical application, the condition of the optical fiber link is complex, and for the scene with low link budget requirement, a fixed attenuation optical attenuator is added at the receiving end, so that the damage of the receiver due to overload of optical power can be prevented. For application scene changes, the optical attenuator may be increased or decreased as needed. However, the fixed attenuation optical attenuators are various in types and have large and small values, and the attenuation values are required to be selected by virtue of a large amount of construction experience, so that the construction difficulty of constructors is increased.
In addition, with the conditions of increasing link fusion points, ageing of a transmitter and the like, the transmission performance of the link is gradually deteriorated, and once the received optical power is lower than the sensitivity of a receiver, error codes occur in service, and the fixed attenuation method cannot support the requirement of improving the power of the transmitter. Meanwhile, the register of the existing optical module stores a group of better laser parameters, the configuration and recovery of the register to the transmitted optical power are not supported, and the optical module does not have the function of adjusting the luminous power. For the situation that the link performance suddenly deteriorates below the sensitivity of the receiver, if the optical module can temporarily increase the transmission optical power, even if other signal indexes such as an eye pattern, an extinction ratio and the like are sacrificed (the preferred laser parameters stored in the register are not the situation corresponding to the maximum value of the luminous power in general), if the occurrence of service error codes can be avoided, the service interruption time is reduced, the time is striven for operation and maintenance personnel, and the convenience of operation and maintenance is improved through means such as online alarming.
Based on this, in the embodiment of the invention, a scheme for self-adapting the luminous power of the optical module is provided, in the scheme, the luminous power of the optical module can be automatically adjusted through automatic measurement, calculation, comparison and adjustment according to the actual link condition, so that the luminous power of the optical module is automatically adapted to the link.
The following describes specific embodiments of the present invention with reference to the drawings.
In the description process, the implementation on the second optical module located at the WDM and the first optical module located at the AAU will be described separately, and then an example of the implementation of the two in cooperation will be also given to better understand the implementation of the scheme given in the embodiment of the present invention. Such a description does not mean that the two must be implemented in cooperation or must be implemented separately, and in fact, when they are implemented separately, they solve the problem on one side of themselves, respectively, while when the two are used in combination, a better technical effect is obtained.
Fig. 2 is a schematic flow chart of an implementation of an optical module power adjustment method of a second optical module located in WDM, and as shown in the drawing, may include:
step 201, a second optical module receives the transmitting optical power of a transmitting unit of the first optical module and/or the receiving optical power of a receiving unit of the first optical module, which are transmitted by the first optical module, wherein the second optical module is located in the WDM equipment, and the first optical module is located in the AAU;
step 202, the second optical module adjusts the transmitting optical power of the transmitting unit of the first optical module and/or the transmitting unit of the second optical module according to one of the error rate, the packet loss rate, the receiving optical power of the receiving unit of the first optical module, the receiving optical power of the receiving unit of the second optical module, or a combination thereof.
Fig. 3 is a schematic flow chart of an implementation of an optical module power adjustment method of a first optical module located in an AAU, and as shown in the drawing, may include:
step 301, the first optical module detects a transmitting optical power of a transmitting unit of the first optical module and/or a receiving optical power of a receiving unit of the first optical module;
step 302, the first optical module sends the sending optical power of the sending unit of the first optical module and/or the receiving optical power of the receiving unit of the first optical module to the second optical module, so that the second optical module can adjust the sending optical power of the sending unit of the first optical module and/or the sending optical power of the sending unit of the second optical module; the second optical module is positioned in the WDM equipment, and the first optical module is positioned in the AAU;
when the second optical module determines that the first optical module needs to adjust power, further, the method may further include:
step 303, the first optical module adjusts the transmitting optical power of the transmitting unit of the first optical module according to the power adjustment information transmitted by the second optical module.
The following description is mainly divided into two parts, one part is to use an OAM transmit power value and the other part is to adjust power.
1. An OAM transmit power value is used.
Specifically, the optical power information of one end optical module can be transmitted to the other end optical module in a low-frequency OAM frame mode, so that the channel is not additionally occupied, and resources can be saved.
In practice, the transmit optical power of the transmitting unit and the receive optical power of the receiving unit are read through the DDM interface inside the optical module.
Specifically, the transmission optical power of the transmitting unit and the reception optical power of the receiving unit can be read through an internal DDM (digital diagnostic monitor, digital Diagnostic Monitoring) interface of the optical module.
In implementation, the transmitting optical power of the transmitting unit and the receiving optical power of the receiving unit of the first optical module are sent to the second optical module, which may be carried by OAM information.
In specific implementation, when carrying the OAM information, the low-frequency tone-top technology is adopted to write the transmit optical power of the transmitting unit and the receive optical power of the receiving unit into the OAM frame.
Specifically, the read transmission power value may be written into an OAM (operation administration maintenance, operation Administration and Maintenance) frame by using a low-frequency tone-top technique, and then transmitted to an optical module at the opposite end.
In implementation, the transmitting optical power of the transmitting unit and the receiving optical power of the receiving unit of the first optical module are transmitted to the second optical module, which may be transmitted through an OAM channel.
Specifically, the control unit in the first optical module may read the sending optical power of the sending unit and the receiving optical power of the receiving unit through the DDM interface inside the optical module; and then the luminous power and the receiving power are sent to the opposite terminal optical module (second optical module) through the OAM channel.
2. Adjustment of power.
In practice, the output optical power of the emission unit may be adjusted by adjusting the temperature value and/or adjusting the laser bias point.
Specifically, for example, the temperature control unit can adjust the temperature value and/or adjust the bias point of the laser according to the instruction issued by the control unit, so that the transmitting light power of the transmitting unit is correspondingly increased or decreased, and the purpose of power adjustment is achieved.
In the following, a power adjustment procedure will be described by way of example, and in the description, an implemented system will be described first, and then an implemented procedure will be described.
Fig. 4 is a schematic diagram of an optical module architecture, and in an embodiment of the present invention, at least one possible optical module architecture is provided, as shown in fig. 4, where an optical module is composed of a control unit, a temperature control unit (optional), a transmitting unit, and a receiving unit. The following description is made.
And a control unit: reading the sending light power of the sending unit and the receiving light power of the receiving unit through a DDM interface inside the optical module; writing the read transmission power value into an OAM frame by adopting a low-frequency tone-top technology, transmitting the value through a link, and transmitting the value to the other end optical module;
comparing the transmitting power with the receiving power, calculating the link budget and the transmitting light power value which needs to be increased or decreased; writing the optical power adjustment value into an OAM frame by adopting a low-frequency tone-top technology, transmitting the optical power adjustment value through a link, and sending the optical power adjustment value to the other end optical module;
And receiving and analyzing the OAM frame, and controlling the temperature control unit or directly adjusting the output optical power of the transmitting unit according to the optical power adjustment value.
In the implementation, the control unit needs to support loading and extracting low-frequency control information; support reading register information and support writing register information, thereby supporting configuration of light module light emitting power.
Temperature control unit (optional unit): and according to the instruction issued by the control unit, adjusting the temperature value and/or adjusting the bias point of the laser, so that the transmitting light power of the transmitting unit is correspondingly increased or decreased.
A transmitting unit: converting the electric layer service and the low-frequency OAM frame into optical signals, and transmitting the optical signals to an opposite-end optical module;
the transmitting unit supports the measurement of the transmitting optical power and reports the transmitting optical power value to the control unit through the DDM; it is supported that the transmission optical power is configured so as to be increased or decreased in accordance with the information of the control unit.
A receiving unit: receiving an optical signal sent by an opposite-end optical module, and converting the optical signal into an electric layer service and a low-frequency OAM frame;
the receiving unit supports the measurement of the received light power and reports the received light power value to the micro control unit through the DDM.
Fig. 5 is a schematic diagram of a system architecture including a first optical module and a second optical module, where the first optical module is located in an AAU and the second optical module is located in a WDM device, and a main control unit in the WDM device supports storing and calculating optical power information as shown in the figure.
The system consists of an AAU color light module, an AAU side passive wavelength division multiplexer and DU side active WDM equipment, and forms a uniform control forwarding network. The remote end of the scheme adopts a passive wave combining and dividing device, so that the deployment is flexible; the AAU optical module adopts a roof-adjusting technology to load OAM (operation administration maintenance, operation Administration and Maintenance) information, and lightweight management and control are realized at low cost.
Fig. 6 is a schematic diagram of a first optical module architecture, as shown, the first optical module may include: the core unit is composed of TOSA (optical transmit sub-module, transmitter Optical Subassembly), ROSA (optical receive sub-assembly, receiver Optical Subassembly), control unit, CDR (data and clock recovery, clock and data recovery), etc., and its architecture is shown in fig. 7. The control unit supports loading and extracting low-frequency control information, and supports reading register information in the optical module and controlling the CDR; the CDR supports a line side return function;
fig. 7 is a schematic diagram of a second optical module and a core unit in an active device, where the active WDM device may include: the architecture of the second optical module, the PRBS (pseudo random binary sequence ) processing unit (optional), the master control unit, etc. is shown in fig. 8. The core unit of the second optical module is composed of TOSA, ROSA, control unit, CDR, etc. The control unit of the second optical module supports loading and extracting low-frequency control information and supports reading register information; the master control unit supports transmission control instructions, transmits PRBS data streams, and compares transmission and reception PRBS.
Next, the implementation of the light-emitting power adjustment and recovery of the optical module will be described.
1. The optical module transmission power adjustment procedure may be as follows:
in an implementation, the second optical module adjusts the output optical power of the transmitting unit of the first optical module and/or the transmitting unit of the second optical module according to one of the error rate, the packet loss rate, the received optical power of the receiving unit of the first optical module, the received optical power of the receiving unit of the second optical module, or a combination thereof, and includes:
if the receiving power of the first optical module is lower than a preset threshold value, and/or the error rate is higher than the preset threshold value, and/or the packet loss rate is higher than the preset threshold value, adjusting the output optical power of the transmitting unit of the second optical module to transmit optical power;
and if the receiving power of the second optical module is lower than a preset threshold value, and/or the error rate is higher than the preset threshold value, and/or the packet loss rate is higher than the preset threshold value, adjusting the output optical power of the transmitting unit of the first optical module to transmit optical power.
In a specific implementation, adjusting the output optical power of the transmitting unit of the second optical module includes:
and the main control unit of the active WDM equipment calculates the light-emitting power value of the second optical module to be lifted or lowered, writes the light-emitting power value into a second optical module register and controls the adjustment of the optical power.
In a specific implementation, adjusting the output optical power of the transmitting unit of the first optical module to transmit optical power includes:
the main control unit of the active WDM equipment calculates the light-emitting power value of a first optical module to be lifted or lowered, writes the light-emitting power value into an OAM frame of a second optical module, sends the light-emitting power value to the first optical module, and is used for the first optical module to demodulate out OAM information of the second optical module, writes the OAM information into a first optical module register and controls the adjustment of the light power.
Correspondingly, for the first optical module, there are:
the first optical module adjusts the transmitting optical power of the transmitting unit of the first optical module according to the power adjusting information transmitted by the second optical module, and the method comprises the following steps:
the first optical module receives OAM information sent to the first optical module by the second optical module;
the first optical module demodulates the OAM information of the second optical module, writes the OAM information into the first optical module register and controls the adjustment of optical power.
Specifically, the first optical module detects the luminous power and the receiving power of the first optical module, and the control unit in the optical module reads the transmitting optical power of the transmitting unit and the receiving optical power of the receiving unit through a DDM interface in the optical module; and transmitting the luminous power and the receiving power to the second optical module through the OAM channel.
And for the second optical module, demodulating the OAM information of the first optical module, reading the sending optical power and the receiving optical power of the first optical module, detecting the sending optical power and the receiving optical power of the second optical module, and reporting the power information of the first optical module and the second optical module to a main control unit of the active WDM equipment.
If the receiving power of the first optical module is lower than a certain threshold value or error code/packet loss occurs or is higher than a certain threshold value, the main control unit of the active WDM equipment calculates the luminous power value of the second optical module which needs to be lifted or lowered, writes the luminous power value into a second optical module register and controls the optical power adjustment;
if the receiving power of the second optical module is lower than a certain threshold value or error code/packet loss occurs or is higher than a certain threshold value, the main control unit of the active WDM equipment calculates the luminous power value of the first optical module which needs to be lifted or lowered, writes the luminous power value into an OAM frame of the second optical module and sends the luminous power value to the first optical module; the first optical module demodulates the OAM information of the second optical module, writes the OAM information into a first optical module register, and controls the adjustment of optical power;
in an implementation, when adjusting the transmission optical power of the transmitting unit of the first optical module and/or the transmitting unit of the second optical module, the method further includes:
an alarm indication is issued.
For the first optical module, there are:
when adjusting the transmission light power of the transmitting unit of the first optical module, further comprising:
an alarm indication is issued.
Specifically, for the scene that the received power is lower than a certain threshold value or error code/packet loss occurs, the alarm indication is generated while the luminous power of the corresponding optical module is increased.
2. The optical module transmission power recovery procedure may be as follows:
in implementation, if the received power of the first optical module is lower than a preset threshold value, and/or the error rate is higher than the preset threshold value, and/or the packet loss rate is higher than the preset threshold value, calculating a link budget by comparing the transmitted optical power of the second optical module and the received optical power of the first optical module, and if the link budget is improved until the original light-emitting power of the second optical module can meet the link transmission capability, adjusting the output optical power of a transmitting unit of the second optical module to the power before adjustment;
if the received power of the second optical module is lower than a preset threshold value, and/or the error rate is higher than the preset threshold value, and/or the packet loss rate is higher than the preset threshold value, calculating the link budget by comparing the transmitted optical power of the first optical module and the received optical power of the second optical module, and if the link budget is improved until the original light-emitting power of the first optical module can meet the link transmission capability, adjusting the output optical power of the transmitting unit of the first optical module to the power before adjustment.
Specifically, for the case that the received power of the first optical module is lower than a certain threshold value or the error code/packet loss occurs so as to increase the light emitting power of the second optical module, the link budget is calculated by comparing the transmitted light power of the second optical module and the received light power of the first optical module, if the link budget is improved until the original light emitting power of the second optical module can meet the link transmission capability, the main control unit of the active WDM equipment transmits the light emitting power recovery information of the second optical module, writes the light emitting power recovery information into the second optical module register, and controls the light emitting power to be adjusted to the original light emitting power value.
Calculating a link budget by comparing the transmitted light power of the first optical module and the received light power of the second optical module when the received power of the second optical module is lower than a certain threshold or error code/packet loss occurs so as to improve the light emitting power of the first optical module, and if the link budget is improved until the original light emitting power of the first optical module can meet the link transmission capability, transmitting light emitting power recovery information of the first optical module by a main control unit of the active WDM equipment, writing the light emitting power recovery information into an OAM frame of the second optical module and transmitting the light emitting power recovery information to the first optical module; the first optical module demodulates the OAM information of the second optical module, writes the OAM information into the first optical module register, and controls the optical power to be adjusted to the original light-emitting power value.
Based on the same inventive concept, the embodiments of the present invention further provide an optical module and a computer readable storage medium, and because the principle of solving the problems of these devices is similar to that of the optical module power adjustment method, the implementation of these devices can refer to the implementation of the method, and the repetition is omitted.
In implementing the technical scheme provided by the embodiment of the invention, the method can be implemented as follows.
Fig. 8 is a schematic structural diagram of a second optical module, located in WDM, as shown in the drawing, and including:
Processor 800, for reading the program in memory 820, performs the following processes:
receiving the transmitting optical power of a transmitting unit of a first optical module and/or the receiving optical power of a receiving unit of the first optical module, which are transmitted by the first optical module, wherein the first optical module is positioned in the AAU;
adjusting the transmitting optical power of the transmitting unit of the first optical module and/or the transmitting unit of the second optical module according to one or a combination of the error rate, the packet loss rate, the receiving optical power of the receiving unit of the first optical module and the receiving optical power of the receiving unit of the second optical module;
a transceiver 810 for receiving and transmitting data under the control of the processor 800.
In an implementation, adjusting the output optical power of the transmitting unit of the first optical module and/or the transmitting unit of the second optical module according to one of the bit error rate, the packet loss rate, the received optical power of the receiving unit of the first optical module, the received optical power of the receiving unit of the second optical module, or a combination thereof includes:
if the receiving power of the first optical module is lower than a preset threshold value, and/or the error rate is higher than the preset threshold value, and/or the packet loss rate is higher than the preset threshold value, adjusting the output optical power of the transmitting unit of the second optical module to transmit optical power;
And if the receiving power of the second optical module is lower than a preset threshold value, and/or the error rate is higher than the preset threshold value, and/or the packet loss rate is higher than the preset threshold value, adjusting the output optical power of the transmitting unit of the first optical module to transmit optical power.
In practice, further comprising:
if the received power of the first optical module is lower than a preset threshold value, and/or the error rate is higher than the preset threshold value, and/or the packet loss rate is higher than the preset threshold value, calculating a link budget by comparing the transmitted optical power of the second optical module and the received optical power of the first optical module, and if the link budget is improved until the original light-emitting power of the second optical module can meet the link transmission capability, adjusting the output optical power of a transmitting unit of the second optical module to the power before adjustment;
if the received power of the second optical module is lower than a preset threshold value, and/or the error rate is higher than the preset threshold value, and/or the packet loss rate is higher than the preset threshold value, calculating the link budget by comparing the transmitted optical power of the first optical module and the received optical power of the second optical module, and if the link budget is improved until the original light-emitting power of the first optical module can meet the link transmission capability, adjusting the output optical power of the transmitting unit of the first optical module to the power before adjustment.
In implementation, the transmitting optical power of the transmitting unit of the first optical module and/or the receiving optical power of the receiving unit of the first optical module, which are transmitted by the first optical module, are transmitted through OAM information of the OAM channel.
In an implementation, adjusting the output optical power of the transmitting unit of the second optical module to transmit the optical power includes:
and the main control unit of the active WDM equipment calculates the light-emitting power value of the second optical module to be lifted or lowered, writes the light-emitting power value into a second optical module register and controls the adjustment of the optical power.
In an implementation, adjusting the output optical power of the transmitting unit of the first optical module to transmit the optical power includes:
the main control unit of the active WDM equipment calculates the light-emitting power value of a first optical module to be lifted or lowered, writes the light-emitting power value into an OAM frame of a second optical module, sends the light-emitting power value to the first optical module, and is used for the first optical module to demodulate out OAM information of the second optical module, writes the OAM information into a first optical module register and controls the adjustment of the light power.
In practice, the output optical power of the emission unit is adjusted by adjusting the temperature value and/or adjusting the laser bias point.
In an implementation, when adjusting the transmission optical power of the transmitting unit of the first optical module and/or the transmitting unit of the second optical module, the method further includes:
An alarm indication is issued.
Wherein in fig. 8, a bus architecture may comprise any number of interconnected buses and bridges, and in particular, one or more processors represented by processor 800 and various circuits of memory represented by memory 820, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 810 may be a plurality of elements, i.e., including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 may store data used by the processor 800 in performing operations.
The embodiment of the invention also provides a second optical module, which is positioned in the WDM and comprises:
the second optical module receiving unit is used for receiving the sending optical power of the sending unit of the first optical module and/or the receiving optical power of the receiving unit of the first optical module, which are sent by the first optical module, wherein the first optical module is positioned in the AAU;
the second optical module adjusting module is used for adjusting the transmitting optical power of the transmitting unit of the first optical module and/or the transmitting unit of the second optical module according to one of the error rate, the packet loss rate, the receiving optical power of the receiving unit of the first optical module and the receiving optical power of the receiving unit of the second optical module or the combination thereof.
In an implementation, the second optical module adjusting module is further configured to adjust an output optical power of the transmitting unit of the first optical module and/or the transmitting unit of the second optical module according to one of an error rate, a packet loss rate, a received optical power of the receiving unit of the first optical module, a received optical power of the receiving unit of the second optical module, or a combination thereof, and includes:
if the receiving power of the first optical module is lower than a preset threshold value, and/or the error rate is higher than the preset threshold value, and/or the packet loss rate is higher than the preset threshold value, adjusting the output optical power of the transmitting unit of the second optical module to transmit optical power;
and if the receiving power of the second optical module is lower than a preset threshold value, and/or the error rate is higher than the preset threshold value, and/or the packet loss rate is higher than the preset threshold value, adjusting the output optical power of the transmitting unit of the first optical module to transmit optical power.
In implementation, the second optical module adjusting module is further configured to calculate a link budget by comparing the transmitted optical power of the second optical module and the received optical power of the first optical module if the received power of the first optical module is lower than a preset threshold, and/or the error rate is higher than a preset threshold, and/or the packet loss rate is higher than a preset threshold, and adjust the output optical power of the transmitting unit of the second optical module to the power before adjustment if the link budget is improved until the original optical power of the second optical module can meet the link transmission capability;
If the received power of the second optical module is lower than a preset threshold value, and/or the error rate is higher than the preset threshold value, and/or the packet loss rate is higher than the preset threshold value, calculating the link budget by comparing the transmitted optical power of the first optical module and the received optical power of the second optical module, and if the link budget is improved until the original light-emitting power of the first optical module can meet the link transmission capability, adjusting the output optical power of the transmitting unit of the first optical module to the power before adjustment.
In an implementation, the second optical module receiving module is further configured to receive a transmission optical power of a transmitting unit of the first optical module and/or a reception optical power of a receiving unit of the first optical module, where the first optical module transmits the OAM information through the OAM channel.
In an implementation, when the second optical module adjusting module is further configured to adjust the output optical power of the transmitting unit of the second optical module to transmit optical power, the second optical module adjusting module includes:
and the main control unit of the active WDM equipment calculates the light-emitting power value of the second optical module to be lifted or lowered, writes the light-emitting power value into a second optical module register and controls the adjustment of the optical power.
In an implementation, when the second optical module adjusting module is further configured to adjust the output optical power of the transmitting unit of the first optical module to transmit optical power, the second optical module adjusting module includes:
The main control unit of the active WDM equipment calculates the light-emitting power value of a first optical module to be lifted or lowered, writes the light-emitting power value into an OAM frame of a second optical module, sends the light-emitting power value to the first optical module, and is used for the first optical module to demodulate out OAM information of the second optical module, writes the OAM information into a first optical module register and controls the adjustment of the light power.
In an implementation, the second optical module adjusting module is further configured to adjust the output optical power of the transmitting unit by adjusting a temperature value and/or adjusting a laser bias point.
In practice, further comprising:
and the alarm module is used for sending out alarm indication when the transmitting power of the transmitting unit of the first optical module and/or the transmitting unit of the second optical module is adjusted.
For convenience of description, the parts of the above apparatus are described as being functionally divided into various modules or units, respectively. Of course, the functions of each module or unit may be implemented in the same piece or pieces of software or hardware when implementing the present invention.
Fig. 9 is a schematic structural diagram of a first optical module, where as shown in the drawing, the first optical module includes:
processor 900, for reading the program in memory 920, performs the following procedures:
detecting the transmitting optical power of the transmitting unit of the first optical module and/or the receiving optical power of the receiving unit of the first optical module;
Transmitting the transmitting optical power of the transmitting unit of the first optical module and/or the receiving optical power of the receiving unit of the first optical module to the second optical module, so that the second optical module can adjust the transmitting optical power of the transmitting unit of the first optical module and/or the transmitting unit of the second optical module; wherein the second optical module is located in the WDM equipment;
a transceiver 910 for receiving and transmitting data under the control of the processor 900.
In practice, further comprising:
and adjusting the transmitting optical power of the transmitting unit of the first optical module according to the power adjusting information transmitted by the second optical module.
In an implementation, adjusting the transmission optical power of the transmitting unit of the first optical module according to the power adjustment information transmitted by the second optical module includes:
receiving OAM information sent to the first optical module by the second optical module;
jie Diaochu the second optical module OAM information is written into the first optical module register to control the optical power adjustment.
In an implementation, the transmitted optical power of the transmitting unit of the first optical module and/or the received optical power of the receiving unit of the first optical module is transmitted through OAM information of the OAM channel.
In practice, the output optical power of the emission unit is adjusted by adjusting the temperature value and/or adjusting the laser bias point.
In an implementation, when adjusting the transmission optical power of the transmitting unit of the first optical module, the method further includes:
an alarm indication is issued.
Wherein in fig. 9, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 900 and various circuits of memory represented by memory 920, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 910 may be a number of elements, i.e., include a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 900 is responsible for managing the bus architecture and general processing, and the memory 920 may store data used by the processor 900 in performing operations.
The embodiment of the invention also provides
A first optical module, located at an AAU, comprising:
the first optical module detection module is used for detecting the sending optical power of the sending unit of the first optical module and/or the receiving optical power of the receiving unit of the first optical module;
The first optical module sending module is used for sending the sending optical power of the sending unit of the first optical module and/or the receiving optical power of the receiving unit of the first optical module to the second optical module, and is used for the second optical module to adjust the sending optical power of the sending unit of the first optical module and/or the sending optical power of the sending unit of the second optical module; wherein the second optical module is located in the WDM equipment.
In practice, further comprising:
and the first optical module adjusting module is used for adjusting the transmitting optical power of the transmitting unit of the first optical module according to the power adjusting information transmitted by the second optical module.
In an implementation, when the first optical module adjusting module is further configured to adjust the transmission optical power of the transmitting unit of the first optical module according to the power adjustment information sent by the second optical module, the method includes:
receiving OAM information sent to the first optical module by the second optical module;
jie Diaochu the second optical module OAM information is written into the first optical module register to control the optical power adjustment.
In an implementation, the first optical module transmitting module is further configured to transmit, through OAM information of the OAM channel, a transmission optical power of a transmitting unit of the first optical module and/or a reception optical power of a receiving unit of the first optical module.
In an implementation, the first optical module adjusting module is further configured to adjust the output optical power of the transmitting unit by adjusting a temperature value and/or adjusting a laser bias point.
In practice, further comprising:
and the alarm module is used for sending out alarm indication when the transmitting light power of the transmitting unit of the first light module is adjusted.
For convenience of description, the parts of the above apparatus are described as being functionally divided into various modules or units, respectively. Of course, the functions of each module or unit may be implemented in the same piece or pieces of software or hardware when implementing the present invention.
The embodiment of the invention also provides a computer readable storage medium, which stores a computer program for executing the optical module power adjustment method of the first optical module and/or the second optical module side.
Specific implementations can be seen in the implementation of the optical module power adjustment method at the first optical module of the AAU and/or at the second optical module side of the WDM.
In summary, in the technical solution provided in the embodiments of the present invention, an optical module solution supporting self-adaptation of light emitting power is provided, and a solution for self-adaptation of light emitting power of an optical module is also provided, specifically, a local optical module and a remote optical module transmit optical power information through an OAM frame, so that an optical power adjustment value of the optical module can be dynamically calculated.
The temperature control unit is controlled to adjust the temperature value and/or adjust the bias point of the laser, or directly adjust the output optical power of the transmitting unit, so that the transmitting optical power of the transmitting unit of the optical module can be correspondingly increased or decreased.
Therefore, the scheme can support flexible adjustment of the luminous power.
The optical power information of one end optical module is transmitted to the other end optical module in a low-frequency OAM frame mode, so that the channel is not additionally occupied, and resources are saved.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (19)

1. An optical module power adjustment method, comprising:
the second optical module receives the sending optical power of the sending unit of the first optical module and/or the receiving optical power of the receiving unit of the first optical module, which are sent by the first optical module, wherein the second optical module is positioned in the wavelength division multiplexing WDM equipment, and the first optical module is positioned in the active antenna unit AAU;
the second optical module adjusts the transmitting optical power of the transmitting unit of the first optical module and/or the transmitting unit of the second optical module according to one of the error rate, the packet loss rate, the receiving optical power of the receiving unit of the first optical module and the receiving optical power of the receiving unit of the second optical module or the combination thereof.
2. The method of claim 1, wherein the second optical module adjusts the output optical power of the transmitting unit of the first optical module and/or the transmitting unit of the second optical module according to one of or a combination of an error rate, a packet loss rate, a received optical power of the receiving unit of the first optical module, and a received optical power of the receiving unit of the second optical module, comprising:
if the receiving power of the first optical module is lower than a preset threshold value, and/or the error rate is higher than the preset threshold value, and/or the packet loss rate is higher than the preset threshold value, adjusting the output optical power of the transmitting unit of the second optical module to transmit optical power;
And if the receiving power of the second optical module is lower than a preset threshold value, and/or the error rate is higher than the preset threshold value, and/or the packet loss rate is higher than the preset threshold value, adjusting the output optical power of the transmitting unit of the first optical module to transmit optical power.
3. The method as recited in claim 2, further comprising:
if the received power of the first optical module is lower than a preset threshold value, and/or the error rate is higher than the preset threshold value, and/or the packet loss rate is higher than the preset threshold value, calculating a link budget by comparing the transmitted optical power of the second optical module and the received optical power of the first optical module, and if the link budget is improved until the original light-emitting power of the second optical module can meet the link transmission capability, adjusting the output optical power of a transmitting unit of the second optical module to the power before adjustment;
if the received power of the second optical module is lower than a preset threshold value, and/or the error rate is higher than the preset threshold value, and/or the packet loss rate is higher than the preset threshold value, calculating the link budget by comparing the transmitted optical power of the first optical module and the received optical power of the second optical module, and if the link budget is improved until the original light-emitting power of the first optical module can meet the link transmission capability, adjusting the output optical power of the transmitting unit of the first optical module to the power before adjustment.
4. A method according to any one of claims 1 to 3, wherein the transmission optical power of the transmission unit of the first optical module and/or the reception optical power of the reception unit of the first optical module transmitted by the first optical module is transmitted by operation administration, maintenance, OAM, information of the OAM channel.
5. The method according to any one of claims 1 to 4, wherein adjusting the output optical power of the transmitting unit of the second optical module to transmit the optical power comprises:
and the main control unit of the active WDM equipment calculates the light-emitting power value of the second optical module to be lifted or lowered, writes the light-emitting power value into a second optical module register and controls the adjustment of the optical power.
6. The method according to any one of claims 1 to 4, wherein adjusting the output optical power of the transmitting unit of the first optical module to transmit the optical power comprises:
the main control unit of the active WDM equipment calculates the light-emitting power value of a first optical module to be lifted or lowered, writes the light-emitting power value into an OAM frame of a second optical module, sends the light-emitting power value to the first optical module, and is used for the first optical module to demodulate out OAM information of the second optical module, writes the OAM information into a first optical module register and controls the adjustment of the light power.
7. A method according to any one of claims 1 to 4, characterized in that the output optical power of the emitting unit is adjusted by adjusting the temperature value and/or adjusting the laser bias point.
8. The method according to any one of claims 1 to 4, wherein adjusting the transmit optical power of the transmitting unit of the first optical module and/or the transmitting unit of the second optical module further comprises:
an alarm indication is issued.
9. An optical module power adjustment method, comprising:
the first optical module detects the transmitting optical power of the transmitting unit of the first optical module and/or the receiving optical power of the receiving unit of the first optical module;
the first optical module sends the sending optical power of the sending unit of the first optical module and/or the receiving optical power of the receiving unit of the first optical module to the second optical module, so that the second optical module can adjust the sending optical power of the sending unit of the first optical module and/or the sending optical power of the sending unit of the second optical module; wherein the second optical module is located in the WDM equipment and the first optical module is located in the AAU.
10. The method as recited in claim 9, further comprising:
the first optical module adjusts the transmitting optical power of the transmitting unit of the first optical module according to the power adjusting information transmitted by the second optical module.
11. The method of claim 10, wherein the first optical module adjusts the transmit optical power of the transmit unit of the first optical module based on the power adjustment information transmitted by the second optical module, comprising:
The first optical module receives OAM information sent to the first optical module by the second optical module;
the first optical module demodulates the OAM information of the second optical module, writes the OAM information into the first optical module register and controls the adjustment of optical power.
12. A method according to any of claims 9 to 11, wherein the transmit optical power of the transmitting unit of the first optical module and/or the receive optical power of the receiving unit of the first optical module transmitted by the first optical module is transmitted via OAM information of the OAM channel.
13. A method according to any of claims 9 to 11, wherein the adjustment of the output optical power of the emitting unit is adjusted by adjusting the temperature value and/or adjusting the laser bias point.
14. The method according to any one of claims 9 to 11, wherein adjusting the transmit optical power of the transmitting unit of the first optical module further comprises:
an alarm indication is issued.
15. A second optical module, located at a WDM, comprising:
a processor for reading the program in the memory, performing the following process:
receiving the transmitting optical power of a transmitting unit of a first optical module and/or the receiving optical power of a receiving unit of the first optical module, which are transmitted by the first optical module, wherein the first optical module is positioned in the AAU;
Adjusting the transmitting optical power of the transmitting unit of the first optical module and/or the transmitting unit of the second optical module according to one or a combination of the error rate, the packet loss rate, the receiving optical power of the receiving unit of the first optical module and the receiving optical power of the receiving unit of the second optical module;
and a transceiver for receiving and transmitting data under the control of the processor.
16. A second optical module, located at a WDM, comprising:
the second optical module receiving unit is used for receiving the sending optical power of the sending unit of the first optical module and/or the receiving optical power of the receiving unit of the first optical module, which are sent by the first optical module, wherein the first optical module is positioned in the AAU;
the second optical module adjusting module is used for adjusting the transmitting optical power of the transmitting unit of the first optical module and/or the transmitting unit of the second optical module according to one of the error rate, the packet loss rate, the receiving optical power of the receiving unit of the first optical module and the receiving optical power of the receiving unit of the second optical module or the combination thereof.
17. A first optical module, located in an AAU, comprising:
a processor for reading the program in the memory, performing the following process:
detecting the transmitting optical power of the transmitting unit of the first optical module and/or the receiving optical power of the receiving unit of the first optical module;
Transmitting the transmitting optical power of the transmitting unit of the first optical module and/or the receiving optical power of the receiving unit of the first optical module to the second optical module, so that the second optical module can adjust the transmitting optical power of the transmitting unit of the first optical module and/or the transmitting unit of the second optical module; wherein the second optical module is located in the WDM equipment;
and a transceiver for receiving and transmitting data under the control of the processor.
18. A first optical module, located in an AAU, comprising:
the first optical module detection module is used for detecting the sending optical power of the sending unit of the first optical module and/or the receiving optical power of the receiving unit of the first optical module;
the first optical module sending module is used for sending the sending optical power of the sending unit of the first optical module and/or the receiving optical power of the receiving unit of the first optical module to the second optical module, and is used for the second optical module to adjust the sending optical power of the sending unit of the first optical module and/or the sending optical power of the sending unit of the second optical module; wherein the second optical module is located in the WDM equipment.
19. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program for executing the method of any one of claims 1 to 14.
CN202111226701.3A 2021-10-21 2021-10-21 Optical module power adjustment method, optical module and storage medium Pending CN116017660A (en)

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