CN106253044A - A kind of wavelength control method and device of tunable laser - Google Patents
A kind of wavelength control method and device of tunable laser Download PDFInfo
- Publication number
- CN106253044A CN106253044A CN201610873903.XA CN201610873903A CN106253044A CN 106253044 A CN106253044 A CN 106253044A CN 201610873903 A CN201610873903 A CN 201610873903A CN 106253044 A CN106253044 A CN 106253044A
- Authority
- CN
- China
- Prior art keywords
- voltage
- current source
- mirror current
- input
- mirror
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
- H01S3/131—Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the active medium, e.g. by controlling the processes or apparatus for excitation
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Semiconductor Lasers (AREA)
Abstract
The invention discloses the wavelength control method and device of a kind of tunable laser, in order to improve stability and the accuracy of the optical maser wavelength that the Laser emission control system of Wavelength tunable exports.The method is: the bias current of mirror current source output to tunable laser is carried out sampling acquisition sampled value；Calculate the error between the bias current expected value that described sampled value is corresponding with default current channel；Determine when described error is not in the threshold range that default current channel is corresponding, voltage according to described error transfer factor input to mirror current source, if monitoring described tunable laser to switch to closed mode from opening, the voltage kept being currently entered to described mirror current source is constant and stores the numerical value that described voltage is corresponding；If monitoring described tunable laser after closed mode switches to opening, according to voltage corresponding to the described numerical value input of storage before closing to mirror current source.
Description
This case is that on 02 18th, 2014 that submit to, Application No. 2014100548586, patent name are tunable for one
The divisional application of the wavelength control method and device of laser instrument.
Technical field
The present invention relates to technical field of photo communication, particularly relate to wavelength control method and the dress of a kind of tunable laser
Put.
Background technology
In Wave division multiplexing passive optical network (WDM-PON) optical network unit (ONU) Wavelength tunable ejector system, to can
Stability and the precise requirements of the wavelength of tuned laser output are higher.
As shown in Figure 1, in the Laser emission control system of Wavelength tunable, by the numeral of micro-control unit (MCU)
Analog converter (DAC) output voltage is as the input of mirror current source, by the mirror image of output after mirror current source mirror image
Electric current is loaded onto tunable laser as bias current.Wherein, shown in accompanying drawing 1, Bias_Set represents the DAC output of MCU
Voltage, Bias_Laser represents the bias current that mirror current source exports, and VCC is the DC source being supplied to mirror current source,
B1 and B2 represents the base stage of audion, E1 and E2 represents the emitter stage of audion, C1 and C2 represents the colelctor electrode of audion, R1 and
R2 is two resistance.It addition, laser driver output modulation electric current (differential signal of this modulation electric current is TOUCA and TOUTC),
Jointly it is loaded in tunable laser by bias current and modulation electric current, controls the wavelength that tunable laser output needs.
But, mirror current source is in the case of input stimulus is identical, due to the temperature of the audion of composition mirror current source
Degree changes, and causes the change of audion quiescent point, and then causes the bias current of output to change so that loads
Unstable to the bias current of tunable laser, the wavelength causing tunable laser to launch laser produces greatly drift.
Summary of the invention
The present invention provides the wavelength control method and device of a kind of tunable laser, in order to improve the laser of Wavelength tunable
The stability of the optical maser wavelength of launch control system output.
The concrete technical scheme that the embodiment of the present invention provides is as follows:
On the one hand, it is provided that a kind of wavelength control method of tunable laser, including:
The bias current of mirror current source output to tunable laser is carried out sampling acquisition sampled value；
Calculate the error between the bias current expected value that sampled value is corresponding with default current channel；
Determine when error is not in the threshold range that default current channel is corresponding, input to mirror current source according to error transfer factor
Voltage；
If monitoring tunable laser to switch to closed mode from opening, keep being currently entered the electricity to mirror current source
Press constant and store the numerical value that voltage is corresponding；If monitoring tunable laser after closed mode switches to opening, root
Corresponding voltage is inputted to mirror current source according to the numerical value of storage before closing.
On the other hand, it is provided that the wavelength control apparatus of a kind of tunable laser, including:
Sampling module, obtains sampled value for the bias current of mirror current source output to tunable laser is carried out sampling；
Computing module, for calculating the mistake between the bias current expected value that described sampled value is corresponding with default current channel
Difference；
Adjusting module, for determining when described error is not in the threshold range that default current channel is corresponding, according to described mistake
Difference adjusts and inputs the voltage to mirror current source；
Second monitoring modular, is used for:
Monitor the open and-shut mode handover event of described tunable laser, if monitoring described tunable laser from opening
Switching to closed mode, the voltage kept being currently entered to described mirror current source is constant and stores the number that described voltage is corresponding
Value；If monitoring described tunable laser after closed mode switches to opening, according to the described number of storage before closing
The voltage of value input correspondence is to mirror current source.
Based on technique scheme, in the embodiment of the present invention, by mirror current source is exported to tunable laser
Bias current carries out sampling and obtains sampled value, calculates the expectation of the described sampled value bias current corresponding with the current channel preset
Error between value, determines when described error is not in the threshold range that default current channel is corresponding, according to described error transfer factor
Input the voltage to mirror current source, repeat this process, until determining and adjust the new sampled value that voltage post-sampling obtains, with the phase
The error of prestige value, in the threshold range that current channel is corresponding, adjusts each passage by closed loop and inputs the electricity to mirror current source
Pressure, the error of the bias current expected value that bias current export through mirror current source by each passage is corresponding with default each passage
Control within the specific limits, to improve the stability of the bias current that each passage of tunable laser exports through mirror current source,
By improving the degree of stability of this bias current, improve stability and the accuracy of the optical maser wavelength of tunable laser output.
Accompanying drawing explanation
Fig. 1 is bias current load mode schematic diagram in existing wavelength tunable laser launch control system；
Fig. 2 is the wavelength control method flow schematic diagram of tunable laser in the embodiment of the present invention；
Fig. 3 a is the wavelength control method flow diagram of tunable laser in the present invention the first specific embodiment；
Fig. 3 b is bias current control block diagram in the present invention the second specific embodiment；
Fig. 4 is the wavelength control apparatus structural representation of tunable laser in the embodiment of the present invention.
Detailed description of the invention
In order to improve stability and the accuracy of the optical maser wavelength of tunable laser output, embodiments provide
A kind of wavelength control method and device of tunable laser.
Below in conjunction with the accompanying drawings the preferred embodiment of the present invention is described in detail.
In first embodiment of the invention, as shown in Figure 2, it is provided that a kind of wavelength control method of tunable laser,
The concrete execution process of the method is as follows:
Step 201: the bias current of mirror current source output to tunable laser is carried out sampling acquisition sampled value.
Step 202: calculate the error between the bias current expected value that sampled value is corresponding with default current channel.
In the embodiment of the present invention, according to the corresponding relation of default passage Yu the expected value of bias current, obtain with current
The expected value of the bias current that passage is corresponding.
Preferably, mirror current source output to the mirror image bias current of generating laser is carried out sampling obtain sampled value it
Before, according to default passage and input to the corresponding relation between the initial input value of the voltage of mirror current source, obtain current
The initial input value inputting the voltage to mirror current source that passage is corresponding, and input to mirror current source.
In actual application, debugging at normal temperatures, certain passage measuring tunable laser accurately exports certain ripple
During the laser grown, the bias current of mirror current source output is sampled, using corresponding as this wavelength for the sampled value obtained
The expected value of bias current, the namely expected value of the bias current that this passage of tunable laser is corresponding, according to this principle,
Bias current corresponding to each passage of the expected value of bias current corresponding to each wavelength, i.e. tunable laser can be recorded
Expected value, thus set up the wavelength of the laser of each passage of tunable laser, each channel emission and the expected value of bias current
Corresponding relation.
Step 203: determine when described error is not in the threshold range that default current channel is corresponding, according to described error
Adjust and input the voltage to mirror current source.
In the embodiment of the present invention, adjust each passage by closed loop and input the voltage to mirror current source, by each passage through mirror
The error control of the bias current expected value corresponding with each passage of image current source output within the specific limits, by improving each leading to
The degree of stability of road bias current, improves stability and the accuracy of the optical maser wavelength of tunable laser output.
Preferably, for each passage predetermined threshold value respectively, the threshold value that each passage is corresponding can be identical, it is also possible to different.
Specifically, error is the difference between the bias current expected value that sampled value is corresponding with default current channel, really
When determining the absolute value of the difference threshold value corresponding not less than current channel, adjust input to the voltage of mirror current source according to difference.
In the embodiment of the present invention, when determining the threshold value that the absolute value of error is not less than current channel, according to this error transfer factor
Input the voltage to mirror current source, and repeated execution of steps 201 to step 203, until determining that adjustment input is to image current
The new sampled value that the voltage post-sampling in source obtains, is less than current channel with the absolute value of the error of the expected value of current channel
Threshold value.
Specifically, if determining that sampled value is less than expected value according to error, reducing and inputting the voltage to mirror current source, if root
Determine that sampled value is more than expected value according to error, increase and input the voltage to mirror current source.
Further, reduce and input the voltage to mirror current source, particularly as follows:
If input inputs the electricity to mirror current source to the voltage of mirror current source less than or equal to the voltage minimum preset, adjustment
Pressure reaches described default voltage minimum；
If input to mirror current source voltage more than preset voltage minimum, will input to mirror current source voltage reduce
The step-length corresponding with described current channel preset；
Increase and input the voltage to mirror current source, particularly as follows:
If input inputs the electricity to mirror current source to the voltage of mirror current source more than or equal to the voltage max preset, adjustment
Pressure reaches described default voltage max；
If input to mirror current source voltage less than preset voltage max, will input to mirror current source voltage increase
The step-length corresponding with described current channel preset.
It is preferred that after determining the threshold value that the absolute value of error is not less than current channel, input to mirror image according to error transfer factor
Before the voltage of current source, determine that the number of times that adjusts of the voltage to input to mirror current source is not more than the threshold value preset, will
Adjust number of times and increase preset value, during otherwise, it determines adjust number of times more than the threshold value preset, terminate this processing procedure.
In actual application, the outfan (outfan of bias current) of mirror current source is connected to the analog digital conversion of MCU
Device (ADC) carries out ADC sampling, carries out respective handling and is converted to the sampled value of bias current.
Preferably, during execution step 201 to step 203, whether the passage of monitoring tunable laser in real time
Switching, switching if monitoring passage, obtain the initial input value of voltage corresponding to pre-switch passage, by described pre-cut
Change voltage corresponding to passage initial input value input to mirror current source, and perform step 201-step 203 adjust be loaded onto
The bias current of tunable laser.
It is preferred that during execution step 201 to step 203, monitor the open and-shut mode of tunable laser in real time
Handover event.
If monitoring tunable laser to switch to closed mode from opening, keep being currently entered to mirror current source
Voltage constant and store the numerical value that described voltage is corresponding, switch to out from closed mode if monitoring described tunable laser
After opening state, input corresponding voltage to mirror current source according to the described numerical value of storage before closing.
In the embodiment of the present invention, after Tunable laser control system power-up initializing, it is provided that input is to image current
The peripheral circuit of the MCU of the voltage in source can be unstable for some time, and the sampled value of the bias current that sampling obtains also is inaccurate
True, adjust process adjusting bias current in order to avoid now starting closed loop, adjustment direction mistake may be caused to make biasing
The sampled value of electric current is increasing with the error of expected value, it is preferred that after Tunable laser control system power-up initializing,
Determine the sampled value of the mirror image bias current that N continuous time sampling obtains be not changed in or fluctuating margin in preset range time,
Start step 201 to step 203 closed loop adjust process adjusting bias current size, wherein, N be more than or equal to 1.
Below by way of two specific embodiments, shown in accompanying drawing 3a and accompanying drawing 3b, provide the embodiment of the present invention can
The wavelength control method of tuned laser carries out completely, describes in detail.
In first specific embodiment, illustrate as a example by the tunable laser with 16 passages, the most each passage
The laser of corresponding a kind of wavelength.
Step 301: Tunable laser control system electrifying startup；
Step 302: determining whether to use for the first time, if being carried out step 313, otherwise, performing step 303；
Step 303: judge whether passage handover event, if being carried out step 313, otherwise performs step 304；
Step 304: the bias current of mirror current source output is carried out sampling acquisition sampled value Bias_AD, and obtains current logical
The expected value Target_AD of the bias current that road is corresponding；
Step 305: calculate the error of the expected value Target_AD of sampled value Bias_AD and acquisition, i.e. sampled value Bias_AD with
Difference Error of the expected value Target_AD obtained, Error=Bias_AD-Target_AD；
Step 306: judge that the absolute value of difference Error, whether more than threshold value Threshold, if so, performs step 307, otherwise
Terminate；
Step 307: judge whether tunable laser is in opening, if so, performs step 308, otherwise, terminates；
Step 308: the adjustment number of times Count of the voltage of input to mirror current source is added 1, i.e. Count=Count+1；
Step 309: judge to adjust whether number of times is more than threshold value 200, if so, terminate, otherwise, perform step 310；
Step 310: judge whether sampled value Bias_AD is more than expected value Target_AD according to difference Error, if being carried out step
Rapid 311, otherwise, perform step 312；
Step 311: judge whether the voltage inputted to mirror current source is more than or equal to default voltage max MaxDA, if so,
Adjust voltage max MaxDA that input to the voltage of mirror current source reaches default, otherwise, will input to mirror current source
Voltage Bias_DA increases step-length Step corresponding with current channel preset, i.e. Bias_DA=Bias_DA+Step, so that biasing
Electric current reduces, and turns and goes to perform step 314；
Step 312: judge whether to input to the voltage to mirror current source less than or equal to voltage minimum MinDA preset, if
It is that the voltage of adjustment input to mirror current source reaches default voltage minimum MinDA, otherwise, will input to image current
Step-length Step corresponding with current channel that the voltage Bias_DA reduction in source is preset, i.e. Bias_DA=Bias_DA-Step, so that
Bias current increases, and turns and goes to perform step 314；
Step 313: obtain the initial input value inputting the voltage to mirror current source that the passage after the switching preset is corresponding, and
As being currently entered the voltage to mirror current source；
Step 314: after controlling tunable laser transmitting laser, turn and go to perform step 304.
In second specific embodiment, as shown in fig. 3b, the outfan of mirror current source is connected to the analog digital conversion of MCU
Device (ADC), ADC the bias current exported mirror current source (Bias_Laser) carries out sampling and obtains sampled value Bias_AD,
MCU memorizer (Flash) is preserved default each passage pass corresponding with the expected value of bias current (Bias_Target)
System, and it is corresponding with the initial value of the voltage being loaded onto mirror current source (Bias_DA_Init) to preserve default each passage
The corresponding relation of threshold value that relation, default each passage allow with error, default each passage input to image current with adjusting
The corresponding relation of the step-length of the voltage in source.Sampled value Bias_AD and expected value do poor (Sub) and calculate absolute value (ABS) afterwards, obtain
The absolute value Error of difference, compares threshold value Error_Max that this absolute value Error is corresponding with the current channel preset
(Compare), if more than this threshold value Error_Max, then control selector (MUX) and input to mirror current source by adjusting MCU
Voltage Bias_DA adjust bias current, do the selection of the difference after poor (Sub) according to sampled value Bias_AD and expected value, if poor
Value more than zero, then controls selector and selects the voltage Bias_DA of input to mirror current source is increased preset and current channel
Corresponding step-length step, will reduce by bias current, if difference is less than zero, then controls selector by input to mirror current source
Voltage Bias_DA reduces step-length step corresponding with current channel preset, and will increase by bias current, the voltage after adjusting
It is carried in mirror current source (Current Mirror), and the bias current (Bias_Laser) again mirror current source exported
Sample.Wherein, input is electric with mirror image equal to the electric current of input to mirror current source to the voltage Bias_DA of mirror current source
The product of the equivalent resistance in stream source.
In the embodiment of the present invention, by presetting voltage initial being loaded onto mirror current source accordingly for each passage
The threshold value of value, error permission, bias current expected value, the step-length of adjustment input to the voltage of mirror current source, to each passage warp
The bias current of mirror current source output carries out sampling and obtains sampled value, uses closed loop to adjust make that each passage correspondence exports inclined
Put error control between current sampling data and default bias current expected value at threshold range corresponding to default each passage
In, thus steady by the voltage of each passage input to mirror current source is adjusted realizing the bias current of each passage output
It is scheduled in a receivable scope, improves the stability of the bias current of each passage output, be finally reached stable output
The effect of specific wavelength.
In second embodiment of the invention, as shown in Figure 4, the wavelength control apparatus of a kind of tunable laser, this device
Be embodied as can be found in the description of said method part, repeat no more in place of repetition, this device mainly includes sampling module
401, computing module 402 and adjusting module 403, wherein,
Sampling module 401, obtains sampling for the bias current of mirror current source output to tunable laser is carried out sampling
Value；
Computing module 402, for calculating between the bias current expected value that described sampled value is corresponding with default current channel
Error；
Adjusting module 403, for determining when described error is not in the threshold range that default current channel is corresponding, according to described
Error transfer factor inputs the voltage to mirror current source.
Preferably, described adjusting module specifically for:
Determine that the difference between the bias current expected value that sampled value is corresponding with default current channel is current logical not less than described
The threshold value that road is corresponding.
It is preferred that this device also includes the first monitoring modular 404, it is used for:
Whether monitoring passage switches, and when monitoring passage and switching, obtains voltage corresponding to pre-switch passage
Initial input value, inputs the initial input value of voltage corresponding for described pre-switch passage to mirror current source.
Preferably, this device also includes the second monitoring modular 405, is used for:
Monitor the open and-shut mode handover event of described tunable laser, monitor the open and-shut mode switching of described tunable laser
Event, if monitoring described tunable laser to switch to closed mode from opening, keeps being currently entered to described mirror image
The voltage of current source is constant and stores the numerical value that described voltage is corresponding；If monitoring described tunable laser to cut from closed mode
After being changed to opening, input corresponding voltage to mirror current source according to the described numerical value of storage before closing.
Wherein, adjusting module specifically for:
If determining that described sampled value, less than described expected value, reduces and inputs the voltage to mirror current source according to described error, if
Determine that described sampled value, more than described expected value, increases and inputs the voltage to mirror current source according to described error.
Specifically, adjusting module specifically for:
When reducing input to the voltage of mirror current source, if input to mirror current source voltage less than or equal to the voltage preset
Little value, adjusts the voltage inputted to mirror current source and reaches described default voltage minimum；
If input to mirror current source voltage more than preset voltage minimum, will input to mirror current source voltage reduce
The step-length corresponding with described current channel preset；
When increasing input to the voltage of mirror current source, if input to mirror current source voltage more than or equal to the voltage preset
Big value, adjusts the voltage inputted to mirror current source and reaches described default voltage max；
If input to mirror current source voltage less than preset voltage max, will input to mirror current source voltage increase
The step-length corresponding with described current channel preset.
Based on technique scheme, in the embodiment of the present invention, by mirror current source is exported to tunable laser
Bias current carries out sampling and obtains sampled value, calculates the expectation of the described sampled value bias current corresponding with the current channel preset
Error between value, determines when described error is not in the threshold range that default current channel is corresponding, according to described error transfer factor
Input the voltage to mirror current source, repeat this process, until determining and adjust the new sampled value that voltage post-sampling obtains, with the phase
The error of prestige value, in the threshold range that current channel is corresponding, adjusts each passage by closed loop and inputs the electricity to mirror current source
Pressure, the error of the bias current expected value that bias current export through mirror current source by each passage is corresponding with default each passage
Control within the specific limits, to improve the stability of the bias current that each passage of tunable laser exports through mirror current source,
By improving the degree of stability of this bias current, improve stability and the accuracy of the optical maser wavelength of tunable laser output.
Obviously, those skilled in the art can carry out various change and the modification essence without deviating from the present invention to the present invention
God and scope.So, if these amendments of the present invention and modification belong to the scope of the claims in the present invention and equivalent technologies thereof
Within, then the present invention is also intended to comprise these change and modification.
Claims (6)
1. the wavelength control method of a tunable laser, it is characterised in that including:
The bias current of mirror current source output to tunable laser is carried out sampling acquisition sampled value；
Calculate the error between the bias current expected value that described sampled value is corresponding with default current channel；
Determine when described error is not in the threshold range that default current channel is corresponding, input to mirror according to described error transfer factor
The voltage in image current source；
If monitoring described tunable laser to switch to closed mode from opening, keep being currently entered to described mirror image electricity
The voltage in stream source is constant and stores the numerical value that described voltage is corresponding；If monitoring described tunable laser to switch from closed mode
After opening, input corresponding voltage to mirror current source according to the described numerical value of storage before closing.
2. wavelength control method as claimed in claim 1, it is characterised in that input to image current according to described error transfer factor
The voltage in source, including:
If determining that described sampled value, less than described expected value, reduces and inputs the voltage to mirror current source according to described error, if
Determine that described sampled value, more than described expected value, increases and inputs the voltage to mirror current source according to described error.
3. wavelength control method as claimed in claim 2, it is characterised in that reduce and input the voltage to mirror current source, tool
Body includes:
If input inputs the electricity to mirror current source to the voltage of mirror current source less than or equal to the voltage minimum preset, adjustment
Pressure reaches described default voltage minimum；
If input to mirror current source voltage more than preset voltage minimum, will input to mirror current source voltage reduce
The step-length corresponding with described current channel preset；
Increase and input the voltage to mirror current source, specifically include:
If input inputs the electricity to mirror current source to the voltage of mirror current source more than or equal to the voltage max preset, adjustment
Pressure reaches described default voltage max；
If input to mirror current source voltage less than preset voltage max, will input to mirror current source voltage increase
The step-length corresponding with described current channel preset.
4. the wavelength control apparatus of a tunable laser, it is characterised in that including:
Sampling module, obtains sampled value for the bias current of mirror current source output to tunable laser is carried out sampling；
Computing module, for calculating the mistake between the bias current expected value that described sampled value is corresponding with default current channel
Difference；
Adjusting module, for determining when described error is not in the threshold range that default current channel is corresponding, according to described mistake
Difference adjusts and inputs the voltage to mirror current source；
Second monitoring modular, is used for:
Monitor the open and-shut mode handover event of described tunable laser, if monitoring described tunable laser from opening
Switching to closed mode, the voltage kept being currently entered to described mirror current source is constant and stores the number that described voltage is corresponding
Value；If monitoring described tunable laser after closed mode switches to opening, according to the described number of storage before closing
The voltage of value input correspondence is to mirror current source.
5. the wavelength control apparatus as described in any one of claim 4, it is characterised in that described adjusting module specifically for:
If determining that described sampled value, less than described expected value, reduces and inputs the voltage to mirror current source according to described error, if
Determine that described sampled value, more than described expected value, increases and inputs the voltage to mirror current source according to described error.
6. wavelength control apparatus as claimed in claim 5, it is characterised in that described adjusting module specifically for:
When reducing input to the voltage of mirror current source, if input to mirror current source voltage less than or equal to the voltage preset
Little value, adjusts the voltage inputted to mirror current source and reaches described default voltage minimum；
If input to mirror current source voltage more than preset voltage minimum, will input to mirror current source voltage reduce
The step-length corresponding with described current channel preset；
When increasing input to the voltage of mirror current source, if input to mirror current source voltage more than or equal to the voltage preset
Big value, adjusts the voltage inputted to mirror current source and reaches described default voltage max；
If input to mirror current source voltage less than preset voltage max, will input to mirror current source voltage increase
The step-length corresponding with described current channel preset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610873903.XA CN106253044B (en) | 2014-02-18 | 2014-02-18 | A kind of wavelength control method and device of tunable laser |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610873903.XA CN106253044B (en) | 2014-02-18 | 2014-02-18 | A kind of wavelength control method and device of tunable laser |
| CN201410054858.6A CN103840364B (en) | 2014-02-18 | 2014-02-18 | A kind of wavelength control method and device of tunable laser |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410054858.6A Division CN103840364B (en) | 2014-02-18 | 2014-02-18 | A kind of wavelength control method and device of tunable laser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106253044A true CN106253044A (en) | 2016-12-21 |
| CN106253044B CN106253044B (en) | 2019-06-18 |
Family
ID=50803614
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410054858.6A Active CN103840364B (en) | 2014-02-18 | 2014-02-18 | A kind of wavelength control method and device of tunable laser |
| CN201610873903.XA Active CN106253044B (en) | 2014-02-18 | 2014-02-18 | A kind of wavelength control method and device of tunable laser |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410054858.6A Active CN103840364B (en) | 2014-02-18 | 2014-02-18 | A kind of wavelength control method and device of tunable laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN103840364B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105007080B (en) * | 2015-07-01 | 2017-10-31 | 宁波大学 | A kind of method that sampling value stabilization is realized in analog-to-digital conversion |
| CN105043426A (en) * | 2015-08-14 | 2015-11-11 | 昂纳信息技术（深圳）有限公司 | Method for on-line monitoring and adjustment of performance of fiber sensor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040136420A1 (en) * | 2003-01-10 | 2004-07-15 | Robinson Michael A. | Control and calibration of laser systems |
| JP2007173611A (en) * | 2005-12-22 | 2007-07-05 | Fujitsu Access Ltd | Laser diode driving circuit |
| CN102594459A (en) * | 2010-10-29 | 2012-07-18 | 马克西姆综合产品公司 | Dual laser-power-level control and calibration system for burst-mode and continuous-mode transmitter |
| CN103457673A (en) * | 2013-07-26 | 2013-12-18 | 厦门优迅高速芯片有限公司 | Method and device for improving saturated light power of APD optical receiver |
| CN103576734A (en) * | 2013-10-21 | 2014-02-12 | 电子科技大学 | Dual-ring control self-adapting voltage adjusting method and device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7826509B2 (en) * | 2006-12-15 | 2010-11-02 | President And Fellows Of Harvard College | Broadly tunable single-mode quantum cascade laser sources and sensors |
| CN101592762B (en) * | 2009-06-05 | 2012-07-04 | 中兴通讯股份有限公司 | Optical module and control method thereof |
| CN102347793A (en) * | 2011-10-28 | 2012-02-08 | 江苏奥雷光电有限公司 | Method for regulating optical power of optical module |
| CN102761052A (en) * | 2012-07-31 | 2012-10-31 | 青岛海信宽带多媒体技术有限公司 | Optical module working parameter adjusting method and adjusting device |
-
2014
- 2014-02-18 CN CN201410054858.6A patent/CN103840364B/en active Active
- 2014-02-18 CN CN201610873903.XA patent/CN106253044B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040136420A1 (en) * | 2003-01-10 | 2004-07-15 | Robinson Michael A. | Control and calibration of laser systems |
| JP2007173611A (en) * | 2005-12-22 | 2007-07-05 | Fujitsu Access Ltd | Laser diode driving circuit |
| CN102594459A (en) * | 2010-10-29 | 2012-07-18 | 马克西姆综合产品公司 | Dual laser-power-level control and calibration system for burst-mode and continuous-mode transmitter |
| CN103457673A (en) * | 2013-07-26 | 2013-12-18 | 厦门优迅高速芯片有限公司 | Method and device for improving saturated light power of APD optical receiver |
| CN103576734A (en) * | 2013-10-21 | 2014-02-12 | 电子科技大学 | Dual-ring control self-adapting voltage adjusting method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106253044B (en) | 2019-06-18 |
| CN103840364B (en) | 2016-11-23 |
| CN103840364A (en) | 2014-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101354515B (en) | Method and device for control bias of laser modulator | |
| CN103606812B (en) | A kind of laser optical power self-adaptation control method based on MCU | |
| US20150130426A1 (en) | Digital current equalizing device, analog current equalizing device, current equalizing method and system | |
| CN109639363A (en) | Any Bias point control device of MZ light intensity modulator and its control method | |
| CN110622443B (en) | System and method for controlling an optical data transmitter | |
| CN104601161A (en) | Impedance correcting circuit and method | |
| KR101311528B1 (en) | Device and Method for Tracing Maximum Power of Solar Cell | |
| US20140265929A1 (en) | Controlling switching current regulators | |
| CN108306689A (en) | Double parallel Mach-Zehnder modulators based on three pilot tones（DPMZM）Arbitrary point autobias control method | |
| CN104638899A (en) | Quick start digital power based on integral separation structure | |
| CN108471045B (en) | Laser constant power digital control method and system | |
| CN110989750B (en) | Driver control circuit applied to optical module | |
| CN109565150B (en) | Laser power controller | |
| CN106253044A (en) | A kind of wavelength control method and device of tunable laser | |
| CN107636989A (en) | A kind of method and device for the bias voltage for automatically controlling optical modulator | |
| CN103309058B (en) | Nonlinear piezoelectric ceramic tunable wavelength filter correcting method and system | |
| US7358802B2 (en) | Multi-phase techniques for tuning and/or measuring operations of an amplifier | |
| CN103941790A (en) | High-speed wide-range high-precision programmable power source of multi-electrode active photoelectric devices | |
| CN113329278B (en) | Light source channel switching module, power adjusting device and power calibration method | |
| CN106549300A (en) | A kind of temperature control circuit of semiconductor laser | |
| US20190089464A1 (en) | Laser power controller | |
| CN103763036B (en) | The processing method of wavelength, device and system | |
| CN102135869B (en) | Mixed type wide range divider and method thereof | |
| CN107562087B (en) | Temperature control method and device based on heater and optical module | |
| CN112332913A (en) | Agile signal power pre-calibration method based on digital automatic power control circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |