CN109905174A - A kind of optical module and the active coupled system of optical module light and method - Google Patents
A kind of optical module and the active coupled system of optical module light and method Download PDFInfo
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- CN109905174A CN109905174A CN201910201853.4A CN201910201853A CN109905174A CN 109905174 A CN109905174 A CN 109905174A CN 201910201853 A CN201910201853 A CN 201910201853A CN 109905174 A CN109905174 A CN 109905174A
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Abstract
This specification provides a kind of optical module, including light-receiving chip, trans-impedance amplifier, MCU and the golden finger being integrated on circuit board, wherein the light-receiving chip is for receiving optical signal and the optical signal being converted to electric signal；The trans-impedance amplifier is connect with the light-receiving chip, for amplifying to the electric signal, wherein the trans-impedance amplifier has RSSI pin；The MCU is connect with the RSSI pin, for sampling the RSSI signal for obtaining the RSSI pin output；The golden finger is connect by iic bus with the MCU, and the golden finger with the host computer outside optical module for connecting；The optical module further includes the pad on circuit board, and the pad is connect with the RSSI pin.And RSSI signal is monitored using above-mentioned optical module, the real-time of monitoring is improved and monitoring principle is realized simply, the debugging efficiency of the active coupling of optical module is remarkably improved, to improve yield.
Description
Technical field
This specification be related to Fibre Optical Communication Technology more particularly to a kind of optical module and the active coupled system of optical module light and
Method.
Background technique
Optical module is device crucial in optical-fiber network, for example, 4 channel parallel optical transceiver modules obtain in 40G Ethernet
To extensive use.
Coupling is one of critical process of optical module, and the effect of coupling directly affects the performance of optical module emergent light.And
The coupling process of row optical transceiver module are as follows: in order to allow light emitting chip (VCSEL Array) or light-receiving chip (pin-
PDArray) there is preferable light-transfer characteristic between light transmission path (mainly optical fiber), therefore carry out optical fiber and light emitting core
The process of the position alignment of the position alignment or optical fiber and light-receiving chip of piece.Light is active to be coupled as through light in path transmission
Feature afterwards come judge coupling quality.
And optical fiber network system, by OLT (Optical Line Terminal optical line terminal), ONT (Optical
Network Terminal ONT Optical Network Terminal) and optical distribution network composition.Wherein, optical line terminal OLT is needed to uplink burst
Optical signal carries out the monitoring of optical power, notes abnormalities and alerts.OLT device can be divided into two portions of optical module and system host computer
Point, optical module completes the conversion of photosignal, while providing the monitoring and alarm of photoelectric properties.The prior art is to the light received
The monitoring signal that watt level is monitored and generates is that (Received Signal Strength Indication connects RSSI
The instruction of receiver signal intensity) signal.
In the prior art, host computer is communicated with the MCU in optical module, reads RSSI signal by the MCU by host computer,
But such mode read cycle is long, can not quickly read RSSI signal.The stage is debugged in optical module product manufacturing, to RSSI
The real-time of signal monitoring has higher requirement, if the real-time to RSSI signal monitoring reduces, will cause optical system for testing coupling
Get togather that bad testing efficiency is low, and monitor optical power value exception when, it is difficult to the failure of the optical module is analyzed.
Summary of the invention
To overcome the problems in correlation technique, present description provides a kind of optical module and the active couplings of optical module light
System and method, can be more convenient quickly to obtain RSSI signal when the active coupling of optical module, and the light for improving optical module has
Source coupling efficiency.
According to this specification embodiment in a first aspect, providing a kind of optical module, the light including being integrated on circuit board is connect
Receive chip, trans-impedance amplifier, MCU and golden finger, wherein
The light-receiving chip is for receiving optical signal and the optical signal being converted to electric signal；
The trans-impedance amplifier is connect with the light-receiving chip, for amplifying to the electric signal, wherein described across resistance
Amplifier has RSSI pin；
The MCU is connect with the RSSI pin, for sampling the RSSI signal for obtaining the RSSI pin output；
The golden finger is connect by iic bus with the MCU, and the golden finger is used for and the host computer outside optical module
Connection；
The optical module further includes the pad on circuit board, and the pad is connect with the RSSI pin.
According to the second aspect of this specification embodiment, a kind of active coupled system of optical module light, including front institute are provided
The optical module stated, wherein the optical module is connected to external fiber, by transmitting in the light-receiving chip reception optical fiber in optical module
Optical signal；The optical module is inserted into host computer by the golden finger, logical between host computer and the optical module to realize
Letter；Pad in the optical module is connect with monitoring device, to realize the monitoring to the RSSI signal.
According to the third aspect of this specification embodiment, a kind of active coupling process of optical module light, the optical module are provided
For a kind of mentioned-above optical module, which comprises
The light-receiving chip receives the optical signal of external fiber transmission, and is translated into electric signal；
The trans-impedance amplifier receives the electric signal and handles, then exports RSSI signal by RSSI pin；
The pad connecting with the RSSI pin is circumscribed with monitoring device, and the monitoring device receives and shows the RSSI
Signal；
Based on the variation of RSSI signal, the relative position between the light-receiving chip and external fiber is adjusted, to realize
Coupling.
The technical solution that the embodiment of this specification provides can include the following benefits:
In this specification embodiment, a kind of optical module is provided, the optical module provided in the active coupling debugging stage
The new RSSI signal monitoring of another kind implementation method.Firstly, the design to optical module is correspondingly improved, from optical module
RSSI pin on middle circuit board draws a branch and is connected to pad；The monitoring device outside optical module is connected by pad, i.e.,
Monitoring device can be achieved to show the monitoring of the RSSI signal.Pass through matching for improved optical module and external monitoring devices
It closes, to be monitored to the RSSI signal, the reading manner using host computer and MCU cooperation is avoided, so that RSSI believes
The real-time of number monitoring is improved, and uses above-mentioned monitoring method, and monitoring principle is realized simple, is remarkably improved optical module
The debugging efficiency of active coupling, and then improve yield.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
This specification can be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the reality for meeting this specification
Example is applied, and is used to explain the principle of this specification together with specification.
Fig. 1 is a kind of this specification optical module shown according to an exemplary embodiment.
Fig. 2 is a kind of optical module that this specification is shown according to another exemplary embodiment.
Fig. 3 is that a kind of optical module shown according to an exemplary embodiment carries out RSSI monitoring schematic diagram.
Fig. 4 is that a kind of optical module shown according to another exemplary embodiment carries out RSSI monitoring schematic diagram.
Fig. 5 is a kind of optical module that this specification is shown according to another exemplary embodiment.
Fig. 6 is a kind of active coupling process of optical module light that this specification is shown according to an exemplary embodiment.
Fig. 7 is a kind of active coupling process of optical module light that this specification is shown according to another exemplary embodiment.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with this specification.On the contrary, they are only and such as institute
The example of the consistent device and method of some aspects be described in detail in attached claims, this specification.
It is only to be not intended to be limiting this explanation merely for for the purpose of describing particular embodiments in the term that this specification uses
Book.The "an" of used singular, " described " and "the" are also intended to packet in this specification and in the appended claims
Most forms are included, unless the context clearly indicates other meaning.It is also understood that term "and/or" used herein is
Refer to and includes that one or more associated any or all of project listed may combine.
Next this specification embodiment is described in detail.
Fig. 1 is a kind of this specification optical module shown according to an exemplary embodiment, as shown in Figure 1, the optical module
Including light-receiving chip 1, trans-impedance amplifier 2, MCU3 and the golden finger 4 being integrated on circuit board, wherein the light-receiving core
Piece 1 is for receiving optical signal and the optical signal being converted to electric signal；The trans-impedance amplifier 2 and the light-receiving chip 1
Connection, for amplifying to the electric signal, wherein the trans-impedance amplifier 2 has RSSI pin；The MCU3 and RSSI
Pin connection, for sampling the RSSI signal for obtaining the RSSI pin output；The golden finger 4 by iic bus with it is described
The connection of MCU 3, the golden finger 4 with the host computer outside optical module for connecting.Wherein, there is at least one in light-receiving chip
Photodiode, for receiving optical signal, after photodiode receives optical signal, photodiode converts the optical signal
For the current signal directly proportional to the power of the optical signal；After trans-impedance amplifier (being also TIA chip) receives the current signal,
The current signal is converted to voltage signal to export outward；And the trans-impedance amplifier (TIA chip) itself also has a RSSI
Pin, for exporting RSSI signal；MCU is connect with the RSSI pin, the analog-to-digital conversion to obtain the RSSI signal, in MCU
(Analog-to-Digital Converter, hereinafter referred to as ADC) samples the voltage of RSSI signal, and by the RSSI
The analog voltage of signal is converted to digital signal, which is referred to as sampled value.One sampled value represents how much light actually
Power is determined by setting one with the one-to-one look-up table of sampled value inside MCU.Look-up table is to allow entirely
RSSI observation circuit is successively gradually sampled from optical power -6dbm to optical power -32dbm, according to the optical power and sampled value of transmitting
Corresponding relationship obtain.In the register that obtained optical power numerical value is stored in inside MCU by last MCU, carried out by host computer
It reads, completes the detection work of optical power.
After getting the optical power value, position between dynamic micro-adjustments external fiber and light-receiving chip, and in real time
The optical power value is observed, position between the two is constantly finely tuned, when the optical power value is reduced suddenly by being gradually increased to
When, fixed position between the two corresponding when optical power value maximum, and using the position as external fiber and light-receiving chip
Between alignment position.
It can be seen that the monitoring needs to RSSI signal are read by host computer by MCU (central processing element) sampling
RSSI signal, during, it have passed through the processing such as amplification, sampling, analog-to-digital conversion and lookup, treatment process is various, therefore obtains
It takes the read cycle of RSSI signal relatively long, can not quickly show RSSI signal, cause the optical mode during production debugging
Block is in active coupling and the coupling efficiency of optical fiber is low, and debugging efficiency is also synchronous to be reduced, so that product yield reduces.
Therefore in order to improve coupling efficiency of optical module during coupling with optical active fiber, the acquisition of real-time high-efficiency is needed
It is able to reflect the RSSI signal monitoring value of the optical signal power variation.As shown in Fig. 2,
Fig. 2 is a kind of optical module shown according to an exemplary embodiment, and the optical module includes being integrated in circuit board (figure
Dotted line frame in 2) on light-receiving chip 1, trans-impedance amplifier 2, MCU3 and golden finger 4, wherein
The light-receiving chip 1 is for receiving optical signal and the optical signal being converted to electric signal；
The trans-impedance amplifier 2 is connect with the light-receiving chip, for the electric signal amplify, wherein it is described across
Impedance amplifier has RSSI pin；
The MCU 3 is connect with the RSSI pin, for sampling the RSSI signal for obtaining the RSSI pin output；
The golden finger 4 is connect by iic bus with the MCU, the golden finger for it is upper outside optical module
Machine connection；
The optical module further includes the pad 5 on circuit board, and the pad 5 is connect with the RSSI pin.
Fig. 3 is that a kind of optical module shown according to an exemplary embodiment carries out RSSI monitoring schematic diagram.As shown in figure 3,
The pad 5 is electrically connected with the monitoring device outside circuit board, and the monitoring device sampling obtains the RSSI signal on pad, and
It is shown.Then, variation of the tuner based on the RSSI signal shown adjusts the light-receiving chip and external fiber
Between relative position, with realize coupling.
In the present embodiment, described to provide a kind of optical module, the optical module provided in the active coupling debugging stage
The new RSSI signal monitoring of another kind implementation method.Firstly, the design to optical module is correspondingly improved, from optical module
RSSI pin on middle circuit board draws a branch and is connected to pad；The monitoring device outside optical module is connected by pad, i.e.,
Monitoring device can be achieved to show the monitoring of the RSSI signal.Pass through matching for improved optical module and external monitoring devices
It closes, to be monitored to the RSSI signal, the reading manner using host computer and MCU cooperation is avoided, so that RSSI believes
The real-time of number monitoring is improved, and uses above-mentioned monitoring method, and monitoring principle is realized simple, is remarkably improved optical module
The debugging efficiency of active coupling, and then improve yield.
It in the present embodiment, include at least one photodiode (PD), the photoelectricity two inside the light receiving unit
Pole pipe converts the optical signal transmitted by optical fiber, obtains the electric signal for being able to reflect the optical signal power variation received.
In one embodiment, as shown in Figure 4, it is contemplated that there are trans-impedance amplifier (TIA chip) in the optical module,
And trans-impedance amplifier (TIA chip) is used as an integrated chip, inside include current mirror circuit 21, current mirror electricity
Road 21 receives the electric signal, and electric signal described in image copying, then the signal that image copying is obtained is sent to the RSSI
Pin.Specifically: it will be in the current input terminal of the trans-impedance amplifier internal current mirror image circuit 21 and the light-receiving chip
Photodiode cathode connection, to input the electric signal.So that the current mirror circuit 21 works, by the telecommunications
Number image copying comes out, and then, the signal that image copying is obtained is sent on the RSSI pin of the trans-impedance amplifier.Also
It is to say, the signal that image copying is obtained is as RSSI signal.
In one embodiment, as shown in figure 4, the optical module further includes sampling resistor 6, described 6 one end of sampling resistor
It is connect with the RSSI pin, the other end is connected to grounding point.In view of the signal that 21 image copying of current mirror circuit obtains,
The electric signal generated with the light-receiving chip is the same, is all current signal, therefore the signal of RSSI pin output is electric current
Signal, the monitoring device for convenience of MCU or outside samples RSSI signal, therefore devises a sampling resistor 6, the RSSI
The electric current of pin output flows to grounding point by sampling resistor 6.On circuit boards, the ungrounded end of the sampling resistor also with electricity
It is electrically connected between the pad on the plate of road.Wherein, the current potential at the ungrounded end of the sampling resistor is that the RSSI pin is defeated
Electric current out flows through the voltage drop generated after the sampling resistor at the sampling resistor both ends.That is, the sampling electricity
The current potential at the ungrounded end of resistance is the product between the electric current of RSSI pin output and the resistance value of sampling resistor 6, is equivalent to
It is the ungrounded of the signal after the Current amplifier to RSSI pin output, the then current potential on pad 5 and the sampling resistor
The current potential at end is equal, therefore using the current potential at the ungrounded end of the sampling resistor as the RSSI signal.
That is, the electric current that the current potential on the pad 5 is exported with the RSSI pin changes and changes, specifically
, the two can be proportional relationship.In other words, the current potential on the pad can reflect the light-receiving chip and carry out photoelectricity
The variation for the electric signal being converted to, and then can also reflect the optical power for the optical signal that photodiode detects
Variation.
In one embodiment, as shown in figure 4, being also parallel with capacitor 7 at the sampling resistor both ends.Wherein, the electricity
Hold 7 effect are as follows: when the electric current of RSSI pin output flows through the sampling resistor 6, the electricity of the RSSI pin output
High-frequency ac ripple in stream can be filtered by the capacitor 7 to be eliminated, so that the sampling resistor monitored
Ungrounded end current potential it is more accurate.
Certainly, in one embodiment, by the sampling resistor 6 of ground connection and 6 both ends of sampling resistor can also be connected in parallel on
Capacitor Integrated design in TIA chip, if after being integrated in the TIA chip interior, the output of the RSSI pin of TIA chip
RSSI signal is exactly a voltage signal, in this way, MCU can be directly to the RSSI signal (voltage of RSSI pin output
Signal) it is sampled, external monitoring device can also be by connecting, directly to RSSI pin output with pad 5
RSSI signal (voltage signal) is sampled.And by the sampling resistor and capacitor Integrated design in TIA chip interior or design
On the circuit board outside TIA chip, the technical solution that the embodiment of the present invention proposes can be realized, in this regard, the present embodiment is not done
Concrete restriction.
In one embodiment, as shown in figure 4, the pad 5 is connect with the monitoring device outside optical module, the RSSI
Pin output signal it is direct or it is amplified by pad 5 export to outside monitoring device.Specifically, being had based on pad
There is big contact area, in the debugging process that optical module carries out active coupling, pad and external monitoring device can be connected
It connects, the RSSI signal is exported to the monitoring device or instrument of the outside, to show the RSSI signal.Wherein, described
Monitoring device can be a voltmeter, and the voltmeter is for detecting the RSSI signal and intuitively showing the RSSI signal
Variation.Therefore, by designing a pad, the interim access of external monitoring device is facilitated, realizes and believes the RSSI
It number intuitively quickly shows, and the optical power that the RSSI signal also reflects the optical signal that photodiode detects becomes
Change, therefore the variation by observing the RSSI signal, the light-receiving core of the optical fiber Yu the optical module can be adjusted in real time
The alignment position of piece, to realize the active coupling of light.
In one embodiment, exception judges chip, the abnormal judgement as shown in figure 5, the optical module further includes
Chip according to the electric signal and the RSSI signal whether all in the normal range, to judge the light-receiving chip and institute
State trans-impedance amplifier whether operation irregularity.
Specifically, in the debugging process for carrying out the active coupling of light, laser light emitting light source emits optical signal to optical fiber, for light
Fibre is transferred to light-receiving chip.In the situation known to the optical power of the optical signal of transmitting, the light-receiving chip is by exterior light
After the optical signal of fibre transmission is converted to electric signal, the obtained electric signal and process trans-impedance amplifier (TIA chip) amplifies
The voltage at RSSI pin ought to be all located in normal range (NR) afterwards.That is, under normal circumstances, by multiple debugging coupling
It closes, in the optical fiber and when optical module position misalignment to be coupled, the electric signal that monitors and by amplifying across resistance
The statistics minimum value of voltage after device (TIA chip) amplification at RSSI pin is generally respectively IlowAnd Ulow, the optical fiber with
When optical module position alignment to be coupled, the electric signal that monitors and after trans-impedance amplifier (TIA chip) amplification
The statistics maximum value of voltage at RSSI pin is generally respectively IhighAnd Uhigh。
Wherein, according to the electric signal and the voltage at the RSSI pin whether all in the normal range, to judge
The light-receiving chip and the trans-impedance amplifier whether operation irregularity, concrete condition includes:
When the electric signal is lower than IlowWhen, corresponding is the light-receiving chip operation irregularity, needs further determination
Whether the photodiode in the light-receiving chip damages.
When the electric signal is higher than IlowAnd it is lower than Ihigh, the voltage at the RSSI pin is lower than UlowWhen, then correspondence is
Trans-impedance amplifier (TIA chip) operation irregularity, and then the trans-impedance amplifier (TIA chip) is repaired or replaced.
Therefore, it by obtaining the voltage at the electric signal and the RSSI pin, and is inputted the exception and sentences
Disconnected chip is compared judgement, that is, it is different to can determine whether the light-receiving chip and the trans-impedance amplifier (TIA chip) work
Often, it is based on judging result, to provide guidance for breakdown maintenance, in this way, can shortening optical module accident analysis largely
Time.
Corresponding with the embodiment of optical module above-mentioned, this specification additionally provides a kind of active coupled system of optical module light
Embodiment.
In one embodiment it is proposed that a kind of active coupled system of optical module light, including light described in preceding embodiment
Module, wherein the optical module is connected to external fiber, by the light transmitted in 1 reception optical fiber of light-receiving chip in optical module
Signal；The optical module is inserted into host computer by the golden finger 4, to realize the communication between host computer and the optical module；
Pad 5 in the optical module is connect with monitoring device, to realize the monitoring to the RSSI signal.
In one embodiment, the monitoring device is for being recorded, being shown or being counted to the RSSI signal.Its
In, the monitoring device can be a voltmeter.
In addition, corresponding with the embodiment of optical module above-mentioned, this specification additionally provides a kind of active coupling of optical module light
The embodiment of conjunction method.
In one embodiment, as shown in fig. 6, proposing a kind of active coupling process of optical module light, including front is implemented
Optical module described in example, wherein the active coupling process of light includes:
Step 601: the light-receiving chip receives the optical signal of external fiber transmission, and is translated into electric signal；
Step 602: the trans-impedance amplifier receives the electric signal and handles, and exports RSSI signal by RSSI pin；
Step 603: the MCU is sampled and is handled to the RSSI signal by sampling resistor, and optical signal pair is obtained
The performance number answered；
Step 604: host computer reads the performance number by the golden finger and the iic bus；
Step 605: the variation based on performance number adjusts the relative position between the light-receiving chip and external fiber,
To realize coupling.
In optical module after debugging factory, the monitoring of RSSI signal is carried out to optical module, optical module is carried out with realizing
The working condition of photoelectric conversion is monitored, and in such cases, the monitoring to the RSSI signal needs to be fixed against adopting for MCU
Sample conversion and the communication with host computer finally show RSSI signal by external software or device, and process is complicated, and needs
The microcontrollers such as MCU, host computer or microprocessor participate in.
When optical module is in the debugging for carrying out the active coupling of light, the equally above-mentioned this mode of use carries out RSSI monitoring, that
, it needs to guarantee that the MCU in optical module is worked normally, can just obtain the monitor value of the RSSI signal, and in reality, it can
The problems such as program that the MCU in optical module can occur is not written or write error, MCU failure, so that MCU abnormal work, is caused
The RSSI value that monitors is abnormal or monitoring is less than RSSI value, and will seriously affect between optical module and optical fiber at this time active couples
Efficiency, so that product yield reduces.
For above situation, in one embodiment, as shown in fig. 7, proposing another active coupling side of optical module light
Method, including optical module described in preceding embodiment, wherein the active coupling process of light includes:
Step 701: the light-receiving chip receives the optical signal of external fiber transmission, and is translated into electric signal；
Step 702: the trans-impedance amplifier receives the electric signal and handles, then exports RSSI signal by RSSI pin；
Step 703: the pad connecting with the RSSI pin is circumscribed with monitoring device, and the monitoring device is received and shown
The RSSI signal；
Step 704: the variation based on RSSI signal adjusts the opposite position between the light-receiving chip and external fiber
It sets, to realize coupling.I.e. commissioning staff dynamically adjusts light-receiving in the optical module according to the RSSI signal observed
The relative position of chip and optical fiber finds that the RSSI signal of display is gradually increased, then represents light-receiving chip during the adjustment
The power of the optical signal received is bigger, and the relative position in the optical module between light-receiving chip and optical fiber is aligned unreasonable
Think, when the RSSI signal is by being gradually increased variation to reduce suddenly, then fix in optical module light-receiving chip and optical fiber it
Between relative position, using the position as the alignment position between optical fiber and light-receiving chip.
Therefore in this method embodiment, the active coupling measurement of the light being directed in optical module scheduling and planning devises one kind
The active coupling process of optical module light, the method achieve the monitorings in debugging process to RSSI signal, do not need complicated MCU
And the chips such as host computer communicated with MCU, image copying only is carried out to the electric signal of light-receiving chip output and is put
It is big to handle to get the RSSI signal of reflected optical signal changed power is arrived, and one and the RSSI pin are devised on circuit boards
The monitoring to RSSI signal, realization principle letter can be realized by the monitoring device outside pad connects in the pad of connection
It is single, and monitor that real-time is higher.
In the present embodiment, the component part of the optical module and relationship, function are correspondingly connected with embodiment has been in front
Through being described in detail, details are not described herein.
In the present embodiment, the pad connecting with the RSSI pin is increased on the circuit board of optical module, then by institute
It states pad to connect with external monitoring device, the RSSI signal is intuitively shown by external monitoring device, and then reflect
The variation of the optical power of the optical signal received out.According to the variation of the RSSI signal monitored, the commissioning staff of optical module exists
In the debugging process for carrying out active coupling, the opposite of light-receiving chip and external fiber in the optical module can be reasonably adjusted
Position.Wherein, how according to the RSSI signal monitored, the tune of light receiving unit and optical fiber relative position in optical module is carried out
Section, the technology being well known to those skilled in the art, details are not described herein again.In the present embodiment, set in the primary circuit plate of optical module
A pad has been counted, has been reduced to the change in optical module to primary circuit plate.The monitoring device outside optical module is connected by pad,
Monitoring device can be realized to show the monitoring of the RSSI signal.Pass through improved optical module and external monitoring devices
Cooperation avoids the reading manner using host computer and MCU cooperation, so that RSSI to be monitored to the RSSI signal
The real-time of signal monitoring is improved, and uses above-mentioned monitoring method, and monitoring principle is realized simply, is remarkably improved optical mode
The debugging efficiency of the active coupling of block, and then improve yield.
In one embodiment, the method also includes: obtain electric signal that the light-receiving chip issues and described
Whether all RSSI signal detects one or two of electric signal that the light-receiving chip issues and described RSSI signal
There is exception, if there is exception, triggers exception and judge chip operation, judge the light-receiving chip and the trans-impedance amplifier
Whether operation irregularity.Its specific determination strategy has been described in detail in previous embodiment, and details are not described herein again.
Therefore by obtaining the voltage at the electric signal and the RSSI pin, and it is inputted the exception and judges core
Piece is compared judgement, that is, can determine the light-receiving chip and the trans-impedance amplifier (TIA chip) whether operation irregularity, base
In judging result, to provide guidance for breakdown maintenance, in this way, can largely shortening optical module accident analysis when
Between.
Those skilled in the art will readily occur to this specification after considering specification and practicing the invention applied here
Other embodiments.This specification is intended to cover any variations, uses, or adaptations of this specification, these modifications,
Purposes or adaptive change follow the general principle of this specification and do not apply in the art including this specification
Common knowledge or conventional techniques.The description and examples are only to be considered as illustrative, the true scope of this specification and
Spirit is indicated by the following claims.
It should be understood that this specification is not limited to the precise structure that has been described above and shown in the drawings,
And various modifications and changes may be made without departing from the scope thereof.The range of this specification is only limited by the attached claims
System.
The foregoing is merely the preferred embodiments of this specification, all in this explanation not to limit this specification
Within the spirit and principle of book, any modification, equivalent substitution, improvement and etc. done should be included in the model of this specification protection
Within enclosing.
Claims (9)
1. a kind of optical module, which is characterized in that including be integrated on circuit board light-receiving chip, trans-impedance amplifier, MCU and
Golden finger, wherein
The light-receiving chip is for receiving optical signal and the optical signal being converted to electric signal；
The trans-impedance amplifier is connect with the light-receiving chip, for amplifying to the electric signal, wherein described to amplify across resistance
Device has RSSI pin；
The MCU is connect with the RSSI pin, for sampling the RSSI signal for obtaining the RSSI pin output；
The golden finger is connect by iic bus with the MCU, and the golden finger is used to connect with the host computer outside optical module
It connects；
The optical module further includes the pad on circuit board, and the pad is connect with the RSSI pin.
2. a kind of optical module according to claim 1, which is characterized in that the trans-impedance amplifier includes current mirror electricity
Road, the current mirror circuit receive the electric signal, and electric signal described in image copying, then the signal that image copying is obtained
It is sent to the RSSI pin.
3. a kind of optical module according to claim 2, which is characterized in that the optical module further includes sampling resistor, described
Sampling resistor one end is connect with the RSSI pin, and the other end is connected to grounding point.
4. a kind of optical module according to claim 3, which is characterized in that be parallel with capacitor at the sampling resistor both ends.
5. a kind of optical module according to claim 1, which is characterized in that the optical module further includes having exception to judge core
Piece, it is described it is abnormal judge chip according to the electric signal and the voltage at the RSSI pin whether all in the normal range,
Come judge the light-receiving chip and the trans-impedance amplifier whether operation irregularity.
6. a kind of active coupled system of optical module light, which is characterized in that including the described in any item optical modules of claim 1-5,
Wherein, the optical module is connected to external fiber, by the optical signal transmitted in the light-receiving chip reception optical fiber in optical module；Institute
It states optical module and host computer is inserted by the golden finger, to realize the communication between host computer and the optical module；The optical mode
Pad in block is connect with monitoring device, to realize the monitoring to the RSSI signal.
7. a kind of active coupled system of optical module light according to claim 6, which is characterized in that the monitoring device is used for
The RSSI signal is recorded, shown or counted.
8. a kind of active coupling process of optical module light, which is characterized in that the optical module is that claim 1-5 is described in any item
Optical module, which comprises
The light-receiving chip receives the optical signal of external fiber transmission, and is translated into electric signal；
The trans-impedance amplifier receives the electric signal and handles, and exports RSSI signal by RSSI pin；
The MCU is sampled and is handled to the RSSI signal by sampling resistor, and the corresponding performance number of optical signal is obtained；
Host computer reads the performance number by the golden finger and the iic bus；
Variation based on performance number adjusts the relative position between the light-receiving chip and external fiber, to realize coupling.
9. a kind of active coupling process of optical module light, which is characterized in that the optical module is that claim 1-5 is described in any item
Optical module, which comprises
The light-receiving chip receives the optical signal of external fiber transmission, and is translated into electric signal；
The trans-impedance amplifier receives the electric signal and handles, then exports RSSI signal by RSSI pin；
The pad connecting with the RSSI pin is circumscribed with monitoring device, and the monitoring device receives and shows the RSSI letter
Number；
Based on the variation of RSSI signal, the relative position between the light-receiving chip and external fiber is adjusted, to realize coupling.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110531998A (en) * | 2019-09-04 | 2019-12-03 | 青岛海信宽带多媒体技术有限公司 | A kind of firmware programming method of optical module and optical module |
| CN111555810A (en) * | 2020-04-22 | 2020-08-18 | 青岛海信宽带多媒体技术有限公司 | Optical module and data transmission method |
| CN114070393A (en) * | 2020-08-04 | 2022-02-18 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| WO2022113176A1 (en) * | 2020-11-24 | 2022-06-02 | 日本電信電話株式会社 | Optical integrated circuit |
| CN114967006A (en) * | 2022-07-22 | 2022-08-30 | 武汉达姆科技有限公司 | Welding control method based on image processing in optical module laser welding coupling |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101854208A (en) * | 2009-03-31 | 2010-10-06 | 华为技术有限公司 | Method for measuring optical power, optical line terminal and optical network unit |
| CN102025415A (en) * | 2009-09-18 | 2011-04-20 | 华为技术有限公司 | Velocity detection method and device |
| CN102209281A (en) * | 2011-05-18 | 2011-10-05 | 索尔思光电（成都）有限公司 | 10G EPON OLT (Ethernet passive optical network optical line terminal) single-fiber three-dimensional optical module |
| CN102956204A (en) * | 2012-11-30 | 2013-03-06 | 深圳市华星光电技术有限公司 | LED (Light-emitting Diode) backlight drive circuit, backlight module and liquid crystal display device |
| CN203968122U (en) * | 2014-07-16 | 2014-11-26 | 青岛海信宽带多媒体技术有限公司 | The optical module of a kind of compatible PIN optical assembly and APD optical assembly |
| JP2015159414A (en) * | 2014-02-24 | 2015-09-03 | 住友電気工業株式会社 | Optical receiver and reception signal strength detection method |
| CN105162730A (en) * | 2015-09-22 | 2015-12-16 | 上海斐讯数据通信技术有限公司 | Processing system and method for optical module information in switch |
| CN205545281U (en) * | 2016-03-21 | 2016-08-31 | 成都新易盛通信技术股份有限公司 | Two SFP optical modules of receiving of DC -20Mbps low rate |
| CN106375058A (en) * | 2016-09-09 | 2017-02-01 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| CN206461624U (en) * | 2017-03-03 | 2017-09-01 | 成都欧飞凌通讯技术有限公司 | A kind of QSFP28 LR4 dual channel receiver optical modules of 100G |
| CN107171722A (en) * | 2017-07-26 | 2017-09-15 | 青岛海信宽带多媒体技术有限公司 | A kind of monitoring method, device and the terminal of optical module received optical power |
-
2019
- 2019-03-18 CN CN201910201853.4A patent/CN109905174A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101854208A (en) * | 2009-03-31 | 2010-10-06 | 华为技术有限公司 | Method for measuring optical power, optical line terminal and optical network unit |
| CN102025415A (en) * | 2009-09-18 | 2011-04-20 | 华为技术有限公司 | Velocity detection method and device |
| CN102209281A (en) * | 2011-05-18 | 2011-10-05 | 索尔思光电（成都）有限公司 | 10G EPON OLT (Ethernet passive optical network optical line terminal) single-fiber three-dimensional optical module |
| CN102956204A (en) * | 2012-11-30 | 2013-03-06 | 深圳市华星光电技术有限公司 | LED (Light-emitting Diode) backlight drive circuit, backlight module and liquid crystal display device |
| JP2015159414A (en) * | 2014-02-24 | 2015-09-03 | 住友電気工業株式会社 | Optical receiver and reception signal strength detection method |
| CN203968122U (en) * | 2014-07-16 | 2014-11-26 | 青岛海信宽带多媒体技术有限公司 | The optical module of a kind of compatible PIN optical assembly and APD optical assembly |
| CN105162730A (en) * | 2015-09-22 | 2015-12-16 | 上海斐讯数据通信技术有限公司 | Processing system and method for optical module information in switch |
| CN205545281U (en) * | 2016-03-21 | 2016-08-31 | 成都新易盛通信技术股份有限公司 | Two SFP optical modules of receiving of DC -20Mbps low rate |
| CN106375058A (en) * | 2016-09-09 | 2017-02-01 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| CN206461624U (en) * | 2017-03-03 | 2017-09-01 | 成都欧飞凌通讯技术有限公司 | A kind of QSFP28 LR4 dual channel receiver optical modules of 100G |
| CN107171722A (en) * | 2017-07-26 | 2017-09-15 | 青岛海信宽带多媒体技术有限公司 | A kind of monitoring method, device and the terminal of optical module received optical power |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110531998A (en) * | 2019-09-04 | 2019-12-03 | 青岛海信宽带多媒体技术有限公司 | A kind of firmware programming method of optical module and optical module |
| CN110531998B (en) * | 2019-09-04 | 2023-09-22 | 青岛海信宽带多媒体技术有限公司 | Optical module and firmware programming method thereof |
| CN111555810A (en) * | 2020-04-22 | 2020-08-18 | 青岛海信宽带多媒体技术有限公司 | Optical module and data transmission method |
| CN111555810B (en) * | 2020-04-22 | 2023-08-08 | 青岛海信宽带多媒体技术有限公司 | Optical module and data transmission method |
| CN114070393A (en) * | 2020-08-04 | 2022-02-18 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| CN114070393B (en) * | 2020-08-04 | 2023-02-17 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| WO2022113176A1 (en) * | 2020-11-24 | 2022-06-02 | 日本電信電話株式会社 | Optical integrated circuit |
| CN114967006A (en) * | 2022-07-22 | 2022-08-30 | 武汉达姆科技有限公司 | Welding control method based on image processing in optical module laser welding coupling |
| CN114967006B (en) * | 2022-07-22 | 2022-11-11 | 武汉达姆科技有限公司 | Welding control method based on image processing in optical module laser welding coupling |
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