CN111740783B - Automatic calibration system and method for adjustable laser with protection - Google Patents
Automatic calibration system and method for adjustable laser with protection Download PDFInfo
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- CN111740783B CN111740783B CN202010398869.1A CN202010398869A CN111740783B CN 111740783 B CN111740783 B CN 111740783B CN 202010398869 A CN202010398869 A CN 202010398869A CN 111740783 B CN111740783 B CN 111740783B
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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
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
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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
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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
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
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- Semiconductor Lasers (AREA)
Abstract
The invention relates to a system and a method for automatically calibrating a protected adjustable laser. The technical scheme of the invention is as follows: the system comprises: an array of optical devices having a number of optical devices; the device selection switch is used for selecting one optical device in the optical device array as a device to be tested; the optical device driving module is used for driving the optical devices selected by the device selection switch in the optical device array; the current protection element is connected between the optical device driving module and the optical device array, is used for obtaining the current between the optical device driving module and the optical device array and cuts off the optical device driving module when the current is overlarge; the parameter measurement module is used for measuring the device parameters of the optical devices selected by the device selection switch in the optical device array; the optical signal measuring module is used for measuring the optical signal output by the optical device selected by the device selection switch in the optical device array; a control module having: the device comprises a pre-detection unit and a calibration module. The invention is suitable for the fields of optical communication and optical devices.
Description
Technical Field
The invention relates to a system and a method for automatically calibrating a protected adjustable laser. The method is suitable for the fields of optical communication and optical devices.
Background
The tunable laser is one of key technologies for solving bandwidth requirements of next-generation optical networks and 5G networks, the number of channels of the tunable laser is usually large (12, 16 and 32), and each channel has a group of calibration parameters, so that the channel calibration parameter data volume of the tunable laser is very large, the calibration test work is complicated, and the production time of the tunable laser is greatly prolonged.
The manual calibration efficiency is low, the labor cost is high, and the automatic calibration is an important means for improving the calibration efficiency of the adjustable laser. Temperature control components exist in the tunable laser device, and the temperature control components are out of control due to connection failure, misoperation and other reasons, so that irreparable damage to the tunable laser device and the module can be caused.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the problems, the automatic calibration system and method for the protected tunable laser are provided.
The technical scheme adopted by the invention is as follows: the utility model provides a tunable laser automatic calibration system of area protection which characterized in that includes:
an array of optical devices having a number of optical devices;
the device selection switch is used for selecting one optical device in the optical device array as a device to be tested;
the optical device driving module is used for driving the optical devices selected by the device selection switch in the optical device array;
the current protection element is connected between the optical device driving module and the optical device array, is used for obtaining the current between the optical device driving module and the optical device array and cuts off the optical device driving module when the current is overlarge;
the parameter measurement module is used for measuring the device parameters of the optical devices selected by the device selection switch in the optical device array;
the optical signal measuring module is used for measuring the optical signal output by the optical device selected by the device selection switch in the optical device array;
a control module having:
the pre-detection unit is used for judging whether the parameters of the optical device acquired by the parameter measurement module meet the set requirements or not and controlling the optical device driving module to drive the optical device when the parameters of the optical device meet the set requirements;
and the calibration module is used for acquiring the measurement result of the optical signal measurement module and processing and analyzing the measurement result to obtain calibration data of the device to be measured.
The optical signal measuring module is provided with a wavelength meter, a hyperspectral meter, an error code meter, an eye pattern meter and a power meter, and optical signals output by optical devices selected by the device selection switch in the optical device array are split by the optical splitter and then input into the wavelength meter, the hyperspectral meter, the error code meter, the eye pattern meter and the power meter; the wavelength meter, the high-speed spectrometer, the error code meter, the eye pattern meter and the power meter can feed measured data back to the control module through the data link for data analysis.
The current protection element adopts a fuse, an air switch or a relay.
The parameter measurement module is provided with a universal meter.
The utility model provides a tunable laser automatic calibration system of area protection which characterized in that: the device comprises an optical device array, a device selection switch, a controllable switch, a parameter measurement module, an optical device driving module, a current protection element, an optical signal measurement module and a control module;
the optical device array is provided with a plurality of optical devices, and is provided with a wiring terminal I which is in circuit connection with the pins I of the optical devices and a plurality of wiring terminals II which correspond to the pins II of the optical devices one by one;
one end of the device selection switch corresponds to a plurality of wiring terminals II on the optical device array, and the other end of the device selection switch is connected with the wiring terminals I of the optical device array through a parameter measurement branch and a driving branch after passing through a controllable switch;
the parameter measuring branch is provided with a parameter measuring module; the driving branch circuit is provided with an optical device driving module and a current protection element connected between the optical device driving module and the optical device array in series;
the optical signal measuring module corresponds to the optical signal output of the optical device array;
the control module is connected with the device selection switch, the controllable switch, the parameter measurement module, the optical device driving module and the optical signal measurement module through data lines.
The optical signal measuring module is provided with a wavelength meter, a hyperspectral meter, an error code meter, an eye pattern meter and a power meter, and optical signals output by optical devices selected by the device selection switch in the optical device array are split by the optical splitter and then input into the wavelength meter, the hyperspectral meter, the error code meter, the eye pattern meter and the power meter.
The current protection element adopts a fuse, an air switch or a relay.
The parameter measurement module is provided with a universal meter.
A calibration method of the automatic calibration system of the protected tunable laser is characterized in that:
s01, setting the position of the device selection switch, and selecting an uncalibrated optical device in the optical device array as a device to be tested;
s02, measuring the device parameters of the optical device selected by the device selection switch through the parameter measuring module;
s03, judging whether the device parameters of the optical device meet the set requirements;
s04, if the device parameters meet the set requirements, controlling the optical device driving module to drive the optical device selected by the device selection switch;
s05, obtaining the current between the optical device driving module and the optical device array through the current protection element, and cutting off the optical device driving module when the current obtained by the current protection element is too large;
s06, obtaining the measurement result of the signal measurement module, and processing and analyzing the measurement result to obtain the calibration data of the device to be measured;
and S07, returning to the step S01, and resetting the position of the device selection switch until all the optical devices on the optical device array are calibrated.
And if the device parameters do not meet the set requirements, reminding the fault, and displaying the device parameters which do not meet the set requirements.
The invention has the beneficial effects that: the optical device is pre-detected by the parameter measuring module, and the optical device driving module is controlled to drive the optical device to output optical signals only when the device parameters meet the set requirements, so that the pre-detection function can detect one optical device firstly and perform calibration after the optical device passes the pre-detection function; then other optical devices are detected and calibrated. The current protection element detects the current between the optical device driving module and the optical device array, and cuts off the optical device driving module when the current acquired by the current protection element is overlarge, so that the safety risk is reduced.
According to the invention, the parameter measuring module and the optical device driving module are respectively connected with the optical devices on the optical device array through the matching of the selection switch and the controllable switch, so that the optical devices are pre-detected one by one, and the optical devices on the optical device array are driven one by one to output optical signals.
Drawings
Fig. 1 is a schematic structural diagram of the embodiment.
1. An array of optical devices; 2. a device selection switch; 3. a controllable switch; 4. a parameter measurement module; 5. an optical device driving module; 6. a current protection element; 7. a light splitter; 8. a wavelength meter; 9. an error code detector; 10. a hyperspectral meter; 11. a power meter; 12. and (4) a computer.
Detailed Description
The embodiment is a protective automatic calibration system for a tunable laser, which comprises an optical device array, a device selection switch, a controllable switch, a parameter measurement module, an optical device driving module, a current protection element, an optical signal measurement module and a computer (comprising a control module and a display module).
The optical device array has a plurality of optical devices, and is provided with a terminal I electrically connected with pins I of each optical device of the optical device array and a plurality of terminals II correspondingly connected with pins II of each optical device of the optical device array.
In the embodiment, one end of the device selection switch is a selection end, the selection end corresponds to a plurality of wiring terminals II on the optical device array, and can be conducted with any wiring terminal II on the optical device array according to a set position; the other end of the device selection switch is connected with a wiring terminal I of the optical device array through the parameter measurement branch and the driving branch respectively after passing through the controllable switch.
In this embodiment, the parameter measurement branch has a parameter measurement module, the parameter measurement module has a multimeter, and the measurement parameters include laser voltage drop, thermistor value, PD value, TEC conduction condition, short circuit condition, open circuit condition, and other electrical connection characteristics. The driving branch circuit is provided with an optical device driving module and a current protection element connected between the optical device driving module and the optical device array in series. The current protection elements may be fuses, air switches, relays, and other elements that are remotely controlled.
The optical signal measuring module is used for measuring optical signals output by optical devices corresponding to the device selection switches in the optical device array, and comprises a wavelength meter, a high-speed spectrometer, an error code meter, an eye pattern meter, a power meter and other equipment, wherein the optical signals output by the optical devices selected by the device selection switches in the optical device array are split by the optical splitter and then input into the wavelength meter, the high-speed spectrometer, the error code meter, the eye pattern meter and the power meter.
In this embodiment, a control module of the computer is connected to a device selection switch, a controllable switch, a parameter measurement module, an optical device driving module, a wavelength meter, a hyperspectral meter, an error code meter, an eye diagram meter, a power meter and other devices through a data line.
The calibration method of the present embodiment is as follows:
s01, setting the position of the device selection switch on the computer, controlling the conduction of the selection end of the selection switch and the corresponding terminal II, and selecting the corresponding optical device in the optical device array as the device to be tested;
s02, the control module controls the controllable switch to select the parameter measurement branch, the parameter measurement module conducts the pin I of the device to be measured through the wiring terminal I and conducts the pin II of the device to be measured through the controllable switch, the device selection switch and the wiring terminal II to form a closed loop, and therefore device parameters of the device to be measured are measured through the parameter measurement module;
s03, the control module obtains the device parameters measured by the parameter measurement module and judges whether the device parameters of the device to be measured meet the set requirements;
s04, if the device parameters do not meet the set requirements, the control module reminds the fault through the display module and displays the device parameters which do not meet the set requirements; if the device parameters meet the set requirements, the control module controls the controllable switch to select a driving branch, the optical device driving module conducts a pin I of the device to be tested through the current protection element and the wiring terminal I, and conducts a pin II of the device to be tested through the controllable switch, the device selection switch and the wiring terminal II to form a closed loop, and the control module controls the optical device driving module to drive the device to be tested to output optical signals;
s05, obtaining the current between the optical device driving module and the optical device array through the current protection element, and cutting off the optical device driving module when the current obtained by the current protection element is too large;
s06, the control module obtains the measurement results of equipment such as a wavemeter, a hyperspectral meter, an error code meter, an eye pattern meter and a power meter, processes and analyzes the measurement results to obtain calibration data of the device to be tested, and completes the calibration of the device to be tested;
and S07, returning to the step S01, and resetting the position of the device selection switch until all the optical devices on the optical device array are calibrated.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a tunable laser automatic calibration system of area protection which characterized in that includes:
an array of optical devices having a number of optical devices;
the device selection switch is used for selecting one optical device in the optical device array as a device to be tested;
the optical device driving module is used for driving the optical devices selected by the device selection switch in the optical device array;
the current protection element is connected between the optical device driving module and the optical device array, is used for obtaining the current between the optical device driving module and the optical device array and cuts off the optical device driving module when the current is overlarge;
the parameter measurement module is used for measuring the device parameters of the optical devices selected by the device selection switch in the optical device array;
the optical signal measuring module is used for measuring the optical signal output by the optical device selected by the device selection switch in the optical device array;
a control module having:
the pre-detection unit is used for judging whether the parameters of the optical device acquired by the parameter measurement module meet the set requirements or not and controlling the optical device driving module to drive the optical device when the parameters of the optical device meet the set requirements;
the calibration module is used for acquiring the measurement result of the optical signal measurement module and processing and analyzing the measurement result to obtain calibration data of the device to be measured;
the optical signal measuring module is provided with a wavelength meter, a hyperspectral meter, an error code meter, an eye pattern meter and a power meter, and optical signals output by optical devices selected by the device selection switch in the optical device array are split by the optical splitter and then input into the wavelength meter, the hyperspectral meter, the error code meter, the eye pattern meter and the power meter; the wavelength meter, the high-speed spectrometer, the error code meter, the eye pattern meter and the power meter can feed measured data back to the control module through the data link for data analysis.
2. The protected tunable laser auto-calibration system according to claim 1, wherein: the current protection element adopts a fuse, an air switch or a relay.
3. The protected tunable laser auto-calibration system according to claim 1, wherein: the parameter measurement module is provided with a universal meter.
4. The utility model provides a tunable laser automatic calibration system of area protection which characterized in that: the device comprises an optical device array, a device selection switch, a controllable switch, a parameter measurement module, an optical device driving module, a current protection element, an optical signal measurement module and a control module;
the optical device array is provided with a plurality of optical devices, and is provided with a wiring terminal I which is in circuit connection with the pins I of the optical devices and a plurality of wiring terminals II which correspond to the pins II of the optical devices one by one;
one end of the device selection switch corresponds to a plurality of wiring terminals II on the optical device array, and the other end of the device selection switch is connected with the wiring terminals I of the optical device array through a parameter measurement branch and a driving branch after passing through a controllable switch;
the parameter measuring branch is provided with a parameter measuring module; the driving branch circuit is provided with an optical device driving module and a current protection element connected between the optical device driving module and the optical device array in series;
the optical signal measuring module corresponds to the optical signal output of the optical device array;
the control module is connected with the device selection switch, the controllable switch, the parameter measurement module, the optical device driving module and the optical signal measurement module through data lines;
the optical signal measuring module is provided with a wavelength meter, a hyperspectral meter, an error code meter, an eye pattern meter and a power meter, and optical signals output by optical devices selected by the device selection switch in the optical device array are split by the optical splitter and then input into the wavelength meter, the hyperspectral meter, the error code meter, the eye pattern meter and the power meter.
5. The protected tunable laser auto-calibration system according to claim 4, wherein: the current protection element adopts a fuse, an air switch or a relay.
6. The protected tunable laser auto-calibration system according to claim 5, wherein: the parameter measurement module is provided with a universal meter.
7. A calibration method of the automatic calibration system of the protected tunable laser according to any one of claims 1 to 6, characterized in that:
s01, setting the position of the device selection switch, and selecting an uncalibrated optical device in the optical device array as a device to be tested;
s02, measuring the device parameters of the optical device selected by the device selection switch through the parameter measuring module;
s03, judging whether the device parameters of the optical device meet the set requirements;
s04, if the device parameters meet the set requirements, controlling the optical device driving module to drive the optical device selected by the device selection switch;
s05, obtaining the current between the optical device driving module and the optical device array through the current protection element, and cutting off the optical device driving module when the current obtained by the current protection element is too large;
s06, obtaining the measurement result of the signal measurement module, and processing and analyzing the measurement result to obtain the calibration data of the device to be measured;
and S07, returning to the step S01, and resetting the position of the device selection switch until all the optical devices on the optical device array are calibrated.
8. The targeting method according to claim 7, characterized in that:
and if the device parameters do not meet the set requirements, reminding the fault, and displaying the device parameters which do not meet the set requirements.
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| CN114295948B (en) * | 2020-10-07 | 2023-11-14 | 台湾爱司帝科技股份有限公司 | Electronic component measuring apparatus, electronic component measuring method, and manufacturing method of light emitting diode |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043721A (en) * | 2015-07-01 | 2015-11-11 | 四川华拓光通信股份有限公司 | Optical module transmitting end extinction ratio measurement system and measurement method |
| CN107765117A (en) * | 2017-09-22 | 2018-03-06 | 烽火通信科技股份有限公司 | A kind of test device and method of optical module self-healing |
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| US8190381B2 (en) * | 2005-01-27 | 2012-05-29 | Electro Industries/Gauge Tech | Intelligent electronic device with enhanced power quality monitoring and communications capabilities |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043721A (en) * | 2015-07-01 | 2015-11-11 | 四川华拓光通信股份有限公司 | Optical module transmitting end extinction ratio measurement system and measurement method |
| CN107765117A (en) * | 2017-09-22 | 2018-03-06 | 烽火通信科技股份有限公司 | A kind of test device and method of optical module self-healing |
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