CN107547128A - The method and device of optical module light power calibration - Google Patents
The method and device of optical module light power calibration Download PDFInfo
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- CN107547128A CN107547128A CN201610465552.9A CN201610465552A CN107547128A CN 107547128 A CN107547128 A CN 107547128A CN 201610465552 A CN201610465552 A CN 201610465552A CN 107547128 A CN107547128 A CN 107547128A
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- voltage
- light power
- optical module
- control voltage
- voa
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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
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
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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
- H04B10/40—Transceivers
-
- 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
- H04B10/50—Transmitters
- H04B10/564—Power control
Abstract
The invention provides a kind of method and device of optical module light power calibration, wherein, this method includes：Variable optical attenuator VOA voltage is adjusted, obtains each control voltage；Determine optical module corresponding each light power under each control voltage；According to each control voltage and each light power, the light power of optical module is calibrated.Solve in correlation technique that luminous power adjustable extent is limited, scaleable scope is small, causes calibration inaccurate, the problem of can not meeting light power accuracy requirement, and then accurately light power is calibrated, and meets the effect of light power accuracy requirement.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of method and device of optical module light power calibration.
Background technology
, it is necessary to calibrate the light power of optical module in optical module debugging process, so as in actual use process
In light power can accurately be adjusted according to default optical power value.
Debud mode in correlation technique is typically to adjust the light power of laser to realize the calibration of different capacity point,
But it is typically+9 to+13dBm scopes because laser optical power adjustable extent is limited, scaleable scope is small, causes calibration not
Accurately, the +/- 0.5dBm of light power accuracy requirement can not be met.
The content of the invention
The embodiments of the invention provide a kind of method and device of optical module light power calibration, at least to solve related skill
Luminous power adjustable extent is limited in art, and scaleable scope is small, causes calibration inaccurate, can not meet light power accuracy requirement
The problem of.
According to one embodiment of present invention, there is provided a kind of optical module light power determines calibration method, including：Adjustment can
The voltage of light attenuator (Variable Optical Attenuator, referred to as VOA), obtains each control voltage；It is determined that
The optical module corresponding each light power under each control voltage；According to each control voltage and described each
Individual light power, the light power of the optical module is calibrated.
Alternatively, adjusting the voltage of the VOA includes：The voltage for initializing the VOA is 0V；With the step of scheduled voltage
The long magnitude of voltage for being incremented by the VOA is until crest voltage.
Alternatively, the scheduled voltage is 0.1V, and/or, the crest voltage is 6V.
Alternatively, according to each control voltage and each light power, to the light power of the optical module
Carrying out calibration includes：Generated according to each control voltage and each luminous power for representing control voltage and luminous power
Relation curve multinomial；The polynomial coefficient is scaled in the optical module.
Alternatively, the multinomial includes：Y=-0.2227x3-0.7474x2+2.23x-1.3808；Wherein, y represents institute
Luminous power is stated, x represents the control voltage.
According to another embodiment of the invention, there is provided a kind of device of optical module light power calibration, including：Adjustment
Module, for adjusting variable optical attenuator VOA voltage, obtain each control voltage；Determining module, for determining the optical mode
Block corresponding each light power under each control voltage；Scaling module, for according to each control voltage and described
Each light power, the light power of the optical module is calibrated.
Alternatively, the adjusting module includes：Initialization unit, the voltage for initializing the VOA are 0V；It is incremented by single
Member, for being incremented by the magnitude of voltage of the VOA with the step-length of scheduled voltage until crest voltage.
Alternatively, the scheduled voltage is 0.1V, and/or, the crest voltage is 6V.
Alternatively, the scaling module includes：Generation unit, for according to each control voltage and each light
Power generates the multinomial of the relation curve for representing control voltage and luminous power；Processing unit, for by the multinomial
Coefficient be scaled in the optical module.
Alternatively, the multinomial includes：Y=-0.2227x3-0.7474x2+2.23x-1.3808；Wherein, y represents institute
Luminous power is stated, x represents the control voltage.
According to still another embodiment of the invention, a kind of storage medium is additionally provided.The storage medium is arranged to storage and used
In the program code for performing above steps.
By the present invention, light extraction calibration precision, and device accordingly are improved due to increasing VOA inside the control unit of sending side
It is proposed that one kind according to each control voltage and each light power, is carried out determining calibration method, met to the light power of optical module
The +/- 0.5dBm of light power accuracy requirement.Therefore, can solve that luminous power adjustable extent is limited in correlation technique, it is calibration
Scope it is small, cause calibration inaccurate, the problem of light power accuracy requirement can not be met, and then accurately to light extraction work(
Rate is calibrated, and meets the effect of light power accuracy requirement.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the method flow diagram of optical module light power calibration according to embodiments of the present invention；
Fig. 2 is the flow chart of optical module light power calibration according to embodiments of the present invention；
Fig. 3 is application connection diagram according to embodiments of the present invention；
Fig. 4 is theory diagram according to embodiments of the present invention；
Fig. 5 is the operational flowchart of optical module light power calibration according to embodiments of the present invention；
Fig. 6 is the light power calibration curve of the embodiment of the present invention and the schematic diagram of polynomial fitting；
Fig. 7 is the structured flowchart of optical module light power robot scaling equipment according to embodiments of the present invention；
Fig. 8 is the structured flowchart of adjusting module 72 in optical module light power robot scaling equipment according to embodiments of the present invention；
Fig. 9 is the structured flowchart of scaling module 76 in optical module light power robot scaling equipment according to embodiments of the present invention.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that do not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.
The embodiment of the method that the embodiment of the present application is provided can be in mobile terminal, terminal or similar computing
Performed in device.Exemplified by running on mobile terminals, Fig. 1 is a kind of optical module light power calibration of the embodiment of the present invention
The hardware block diagram of the mobile terminal of method.(only show in Fig. 1 as shown in figure 1, mobile terminal 10 can include one or more
Going out one) (processor 102 can include but is not limited to Micro-processor MCV or PLD FPGA's etc. to processor 102
Processing unit), the memory 104 for data storage and the transmitting device 106 for communication function.The common skill in this area
Art personnel are appreciated that the structure shown in Fig. 1 is only to illustrate, and it does not cause to limit to the structure of above-mentioned electronic installation.For example,
Mobile terminal 10 may also include more either less components than shown in Fig. 1 or have the configuration different from shown in Fig. 1.
Memory 104 can be used for the software program and module of storage application software, such as the optical mode in the embodiment of the present invention
Block light power determines programmed instruction/module corresponding to calibration method, and processor 102 is stored in memory 104 by operation
Software program and module, so as to perform various function application and data processing, that is, realize above-mentioned method.Memory 104
May include high speed random access memory, may also include nonvolatile memory, as one or more magnetic storage device, flash memory,
Or other non-volatile solid state memories.In some instances, memory 104 can further comprise relative to processor 102
Remotely located memory, these remote memories can pass through network connection to mobile terminal 10.The example bag of above-mentioned network
Include but be not limited to internet, intranet, LAN, mobile radio communication and combinations thereof.
Transmitting device 106 is used to data are received or sent via a network.Above-mentioned network instantiation may include
The wireless network that the communication providerses of mobile terminal 10 provide.In an example, transmitting device 106 includes a Network adaptation
Device (Network Interface Controller, referred to as NIC), its can be connected by base station with other network equipments so as to
It can be communicated with internet.In an example, transmitting device 106 can be that radio frequency (Radio Frequency, is referred to as
RF) module, it is used to wirelessly be communicated with internet.
A kind of optical module light power is provided in the present embodiment and determines calibration method, and Fig. 2 is according to embodiments of the present invention
Optical module light power calibration flow chart, as shown in Fig. 2 the flow comprises the following steps：
Step S202：Variable optical attenuator VOA voltage is adjusted, obtains each control voltage；
Step S204：Determine above-mentioned optical module corresponding each light power under each control voltage；
Step S206：According to above-mentioned each control voltage and each light power, to the light extraction work(of above-mentioned optical module
Rate is calibrated.
By above-mentioned steps, according to each control voltage and each light power, the light power of optical module is determined
Mark, solves in correlation technique that luminous power adjustable extent is limited, and scaleable scope is small, causes calibration inaccurate, can not meet
The problem of accuracy requirement of light power, and then accurately light power is calibrated, meet light power precision need
The effect asked.
In an optional embodiment, adjusting above-mentioned VOA voltage includes：The voltage for initializing above-mentioned VOA is 0V.
In the present embodiment, adjusting the adjustment mode of VOA voltage can include incrementally being adjusted, and can also include to pass
The mode subtracted is adjusted, or is adjusted in a manner of other adjustment voltages.Target optical module undetermined is installed to commissioning
On plate, commissioning plate is electrically connected with personal computer (Personal Computer, referred to as PC) by network interface, and optical module is normal
After operation, PC starts setting up the VOA control voltages of optical module to be calibrated, and initial value can be set to 0V, and decay during 0V is minimum,
Light power is maximum.
In an optional embodiment, when adjusting VOA voltage, VOA can be incremented by with the step-length of scheduled voltage
Magnitude of voltage until crest voltage, wherein, above-mentioned scheduled voltage can be 0.1V (can certainly be other magnitudes of voltage,
Such as 0.2V, 0.25V), and/or, above-mentioned crest voltage can be 6V (it is of course also possible to set other crest voltages, such as
5V、7V).In the present embodiment, it is preferred that above-mentioned VOA control voltages can be incremented by by 0.1V of step-length, until control voltage is adjusted
Save positive 6V.
In an optional embodiment, according to above-mentioned each control voltage and each light power, to above-mentioned optical module
Light power carry out calibration and include：Generated according to each control voltage and each luminous power for representing control voltage and light work(
The multinomial of the relation curve of rate；Above-mentioned polynomial coefficient is scaled in optical module.In the present embodiment, can be according to true
Fixed each VOA voltages and the data of power output draw response curve, and obtain representing VOA controls using the mode of curve matching
The multinomial of voltage processed and the relation curve of light power.Wherein, recording VOA voltages and the mode of power output data can be
Various, can be with accurate recording VOA voltages and power output data.
In an optional embodiment, above-mentioned multinomial includes：Y=-0.2227x3-0.7474x2+2.23x-
1.3808；Wherein, y represents above-mentioned luminous power, and x represents above-mentioned control voltage.In the present embodiment, can will be in multinomial
Number is scaled in optical module；Wherein, the coefficient in the multinomial can be according to different debugging enironments or for different light
Module carries out different settings, accurately to realize the calibration of optical module light power.
When being calibrated in optical module production process optical module light power, step with above-mentioned debugging process,
This is no longer repeated one by one.
With reference to specific embodiment, the present invention will be described：
Fig. 3 is application connection diagram according to embodiments of the present invention, connection such as Fig. 3 institutes of the device in the embodiment
Show：
Optical module to be calibrated is installed on commissioning plate, commissioning plate is electrically connected with PC by network interface.Commissioning is additionally provided with PC
Software, electricity on commissioning plate, after optical module normal operation calibrate, PC starts setting up the VOA control voltages for treating calibration pass module.
And the luminous power of the optical module VOA to be calibrated of recording optical power meter measurement output.
Fig. 4 is theory diagram according to embodiments of the present invention, and the scheme in the present embodiment is said with reference to Fig. 4
It is bright：
One network interface of each setting, PC pass through network interface connection commissioning plate on commissioning plate and PC；
Optical module to be calibrated is installed on commissioning plate.Above-mentioned optical mode plate is provided with laser, modulator, VOA, VOA control
Device and MCU microcontroller processed is simultaneously sequentially connected electrically, wherein, MCU microcontrollers electrically connect with the network interface on commissioning plate, VOA and light
Power meter electrically connects；
Electric on commissioning plate, optical module normal operation, PC starts setting up the VOA control voltages of optical module to be calibrated, initial value
For 0V.
The optical module VOA to be calibrated of recording optical power meter measurement Output optical power.
It is incremented by VOA control voltages using step-length 0.1V, until voltage Tiao Jiedao+6V.
Response curve is drawn according to the data of the VOA voltages of record and power output, and obtains representing the multinomial of curve.
Multinomial coefficient is scaled in optical module, so as to complete the Registration of light power.
Fig. 5 is the operational flowchart of optical module light power calibration according to embodiments of the present invention, as shown in figure 5, the stream
Journey comprises the following steps：
Step 502：Installation treats scaling module (corresponding to above-mentioned optical module) to commissioning plate (can also be calibration plate), and
Commissioning plate will be given to pass through network interface connection, upper electricity operation with PC；
Step 504：It is electric on commissioning plate, scaling module normal operation is treated, PC starts to set the VOA voltages for treating scaling module
For 0V, now decay is minimum, and light power is maximum；
Step 506：Judge whether VOA voltages are more than 6V；
Step 508：VOA voltages are not more than 6V, the output light work(for treating scaling module VOA of record now light power meter measurement
Rate value；
Step 510：With step-length 0.1V repeat steps 504 and step 508, until voltage Tiao Jiedao+6V；
Step 512：VOA voltages are more than 6V, according to the voltage and power data of record, draw curve, and be fitted generation table
Show the multinomial of curve；
Step 514：Multinomial coefficient is scaled in module；
Step 516：Calibration terminates.
Fig. 6 is the schematic diagram of light power calibration curve according to embodiments of the present invention and polynomial fitting, such as Fig. 6 institutes
Show, according to each control voltage and each light power, the light power of optical module is calibrated, and generate for representing control
The relation curve of voltage processed and luminous power.Expression curve is drawn according to each control voltage, each light power and coefficient correlation
Multinomial, such as y=-0.2227x3-0.7474x2+2.23x-1.3808；Wherein, y represents luminous power, and x represents control electricity
Pressure.
Alternatively, the executive agent of above-mentioned steps can be the terminal such as PC, but not limited to this.
Through the above description of the embodiments, those skilled in the art can be understood that according to above-mentioned implementation
The method of example can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but a lot
In the case of the former be more preferably embodiment.Based on such understanding, technical scheme is substantially in other words to existing
The part that technology contributes can be embodied in the form of software product, and the computer software product is stored in a storage
In medium (such as ROM/RAM, magnetic disc, CD), including some instructions to cause a station terminal equipment (can be mobile phone, calculate
Machine, server, or network equipment etc.) perform method described in each embodiment of the present invention.
Fig. 7 is the structured flowchart of optical module light power robot scaling equipment according to embodiments of the present invention, as shown in fig. 7, should
Device includes adjusting module 72, determining module 74 and scaling module 76, and the device is illustrated below：
Adjusting module 72, for adjusting variable optical attenuator VOA voltage, obtain each control voltage；Determining module 74,
Above-mentioned adjusting module 72 is connected to, for determining above-mentioned optical module corresponding each light power under each control voltage；It is fixed
Module 76 is marked, is connected to above-mentioned determining module 74, for according to above-mentioned each control voltage and above-mentioned each light power, to upper
The light power for stating optical module is calibrated.
Be as shown in Figure 8 the embodiment of the present invention optical module light power robot scaling equipment in adjusting module 72 structural frames
Figure, as shown in figure 8, above-mentioned adjusting module 72 includes initialization unit 82 and increment unit 84, enters to the adjusting module 72 below
Row explanation：
Initialization unit 82, the voltage for initializing above-mentioned VOA are 0V；Increment unit 84, it is connected to above-mentioned initialization
Unit 82, for being incremented by above-mentioned VOA magnitude of voltage with the step-length of scheduled voltage until crest voltage.
In an optional embodiment, above-mentioned scheduled voltage is 0.1V, and/or, above-mentioned crest voltage is 6V.
Be as shown in Figure 9 the embodiment of the present invention optical module light power robot scaling equipment in scaling module 76 structural frames
Figure, as shown in figure 9, above-mentioned scaling module 76 includes generation unit 92 and processing unit 94, is carried out to the scaling module 76 below
Explanation：
Generation unit 92, for being generated according to above-mentioned each control voltage and above-mentioned each luminous power for representing control electricity
The multinomial of the relation curve of pressure and luminous power；Processing unit 94, above-mentioned generation unit 92 is connected to, for by above-mentioned multinomial
Coefficient be scaled in above-mentioned optical module.
In an optional embodiment, above-mentioned multinomial includes：Y=-0.2227x3-0.7474x2+2.23x-
1.3808；Wherein, y represents above-mentioned luminous power, and x represents above-mentioned control voltage.
It should be noted that above-mentioned modules can be realized by software or hardware, for the latter, Ke Yitong
Cross in the following manner realization, but not limited to this：Above-mentioned module is respectively positioned in same processor；Or above-mentioned modules are with any
The form of combination is located in different processors respectively.
Embodiments of the invention additionally provide a kind of storage medium.Alternatively, in the present embodiment, above-mentioned storage medium can
The program code for performing above-mentioned steps to be arranged to storage to be used for.
Alternatively, in the present embodiment, above-mentioned storage medium can include but is not limited to：USB flash disk, read-only storage (Read-
Only Memory, referred to as ROM), it is random access memory (Random Access Memory, referred to as RAM), mobile hard
Disk, magnetic disc or CD etc. are various can be with the medium of store program codes.
Alternatively, in the present embodiment, processor performs above-mentioned steps according to the program code stored in storage medium.
Alternatively, the specific example in the present embodiment may be referred to described in above-described embodiment and optional embodiment
Example, the present embodiment will not be repeated here.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general
Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and formed
Network on, alternatively, they can be realized with the program code that computing device can perform, it is thus possible to they are stored
Performed in the storage device by computing device, and in some cases, can be with different from shown in order execution herein
The step of going out or describing, they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or
Step is fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware and software combination.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of optical module light power determines calibration method, it is characterised in that including：
Variable optical attenuator VOA voltage is adjusted, obtains each control voltage；
Determine the optical module corresponding each light power under each control voltage；
According to each control voltage and each light power, the light power of the optical module is calibrated.
2. according to the method for claim 1, it is characterised in that adjusting the voltage of the VOA includes：
The voltage for initializing the VOA is 0V；
The magnitude of voltage of the VOA is incremented by until crest voltage with the step-length of scheduled voltage.
3. according to the method for claim 2, it is characterised in that the scheduled voltage is 0.1V, and/or, the peak value
Voltage is 6V.
4. according to the method in any one of claims 1 to 3, it is characterised in that according to each control voltage and institute
Each light power is stated, carrying out calibration to the light power of the optical module includes：
Relation song for representing control voltage and luminous power is generated according to each control voltage and each luminous power
The multinomial of line；
The polynomial coefficient is scaled in the optical module.
5. according to the method for claim 4, it is characterised in that the multinomial includes：
Y=-0.2227x3-0.7474x2+2.23x-1.3808；
Wherein, y represents the luminous power, and x represents the control voltage.
A kind of 6. device of optical module light power calibration, it is characterised in that including：
Adjusting module, for adjusting variable optical attenuator VOA voltage, obtain each control voltage；
Determining module, for determining the optical module corresponding each light power under each control voltage；
Scaling module, for according to each control voltage and each light power, to the light extraction work(of the optical module
Rate is calibrated.
7. device according to claim 6, it is characterised in that the adjusting module includes：
Initialization unit, the voltage for initializing the VOA are 0V；
Increment unit, for being incremented by the magnitude of voltage of the VOA with the step-length of scheduled voltage until crest voltage.
8. device according to claim 7, it is characterised in that the scheduled voltage is 0.1V, and/or, the peak value
Voltage is 6V.
9. the device according to any one of claim 6 to 8, it is characterised in that the scaling module includes：
Generation unit, for being generated according to each control voltage and each luminous power for representing control voltage and light
The multinomial of the relation curve of power；
Processing unit, for the polynomial coefficient to be scaled in the optical module.
10. device according to claim 9, it is characterised in that the multinomial includes：
Y=-0.2227x3-0.7474x2+2.23x-1.3808；
Wherein, y represents the luminous power, and x represents the control voltage.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610465552.9A CN107547128B (en) | 2016-06-23 | 2016-06-23 | Method and device for calibrating light-emitting power of optical module |
| PCT/CN2017/089673 WO2017220006A1 (en) | 2016-06-23 | 2017-06-23 | Optical output power calibration method and apparatus for optical module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610465552.9A CN107547128B (en) | 2016-06-23 | 2016-06-23 | Method and device for calibrating light-emitting power of optical module |
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| CN107547128A true CN107547128A (en) | 2018-01-05 |
| CN107547128B CN107547128B (en) | 2022-06-07 |
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| CN201610465552.9A Active CN107547128B (en) | 2016-06-23 | 2016-06-23 | Method and device for calibrating light-emitting power of optical module |
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| WO (1) | WO2017220006A1 (en) |
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| CN111817782A (en) * | 2020-06-24 | 2020-10-23 | 武汉光迅科技股份有限公司 | Calibration method, device, equipment and storage medium |
| CN113541778A (en) * | 2021-07-13 | 2021-10-22 | 深圳恒朴光电科技有限公司 | Automatic testing system and method for optical module |
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| CN112367116B (en) * | 2020-10-14 | 2023-01-17 | 武汉光迅科技股份有限公司 | Calibration method and device for optical power, electronic equipment and storage medium |
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| WO2017220006A1 (en) | 2017-12-28 |
| CN107547128B (en) | 2022-06-07 |
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