CN112595916A - Beam-combining optical fiber laser module aging detection device and detection method - Google Patents
Beam-combining optical fiber laser module aging detection device and detection method Download PDFInfo
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- CN112595916A CN112595916A CN202011529459.2A CN202011529459A CN112595916A CN 112595916 A CN112595916 A CN 112595916A CN 202011529459 A CN202011529459 A CN 202011529459A CN 112595916 A CN112595916 A CN 112595916A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/003—Environmental or reliability tests
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
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Abstract
The invention discloses a device and a method for detecting aging of a beam-combining fiber laser module, wherein the device comprises a light power sensor, a light absorption module, a motion module and a control module; the optical power sensor is used for measuring optical power and is connected with the control module; the light absorption module is driven by the motion module to move to the front of the optical power sensor in the aging process to prevent the emergent light of the optical fiber from irradiating the optical power sensor; the control module is in communication connection with the computer through a serial port or a network port and is used for receiving a command for controlling the motion of the finger motion module and a command for reading the reading of the optical power sensor; the control module is connected with the optical power sensor through a signal wire and used for reading data of the sensor; the control module is connected with the motion module through a signal wire and used for controlling the motion of the motion module. The device is used for continuous and uninterrupted tracking and monitoring, so that the aim of accurate and timely monitoring data is fulfilled, and the working efficiency and the monitoring precision can be improved.
Description
Technical Field
The invention relates to the technical field of production and detection of a beam-combining optical fiber laser module, in particular to a device and a method for detecting aging of the beam-combining optical fiber laser module.
Background
According to the practical use experience of the laser, the attenuation process of the light output power of the laser is as follows: the rapid decay followed by the slow decay after stabilization, and the decay accelerated again after a long time use, as shown in fig. 1 below.
Under the constant current driving, the rule of the light output power of the laser is as follows: the rapid descent is followed by a slow descent phase, and after a long period of use, the process of accelerated descent again occurs, at which time the laser means that it is no longer suitable for production. As shown in fig. 2;
these three phases are now divided into: new loading phase, stationary phase and aging phase. The new loading period and the aging period have high aging speed and are not suitable for production. A newly installed laser needs to undergo the necessary aging process to bring the laser into a stable period. The traditional aging treatment method mainly comprises the steps of manually monitoring the light emitting power of the laser for multiple times every day and judging whether the laser is in a stable period, so that the traditional aging treatment method is not very beneficial to management and batch production.
Disclosure of Invention
The invention provides a device and a method for detecting the aging of a beam-combining optical fiber laser module, which can solve the technical defects.
In order to achieve the purpose, the invention adopts the following technical scheme:
a device for detecting aging of a beam-combining optical fiber laser module comprises an optical power sensor, a light-absorbing module, a motion module and a control module;
the optical power sensor is used for measuring optical power and is connected with the control module;
the light absorption module is driven by the motion module to move to the front of the optical power sensor in the aging process to prevent the emergent light of the optical fiber from irradiating the optical power sensor;
the motion module comprises a motor, a guide rail, an upper limit sensor and a lower limit sensor, and is connected with the control module;
the optical power sensor and the motion module are respectively fixed on the base; the light absorption module is arranged on the motion module and moves up and down along with the motion of the screw rod;
the upper limit sensor is used for acquiring a stop signal for shielding the optical power sensor, and the lower limit sensor is used for acquiring a stop signal for exposing the optical power sensor;
the control module is in communication connection with the computer through a serial port or a network port and is used for receiving a command for controlling the motion of the finger motion module and a command for reading the reading of the optical power sensor;
the control module is connected with the optical power sensor through a signal wire and used for reading data of the sensor;
the control module is connected with the motion module through a signal wire and used for controlling the motion of the motion module.
Further, the light-absorbing module is a blackened metal plate for absorbing light.
Further, the switch form of the motor is horizontal or vertical or rotary arm or shutter type.
On the other hand, the detection method of the beam combination semiconductor laser module comprises the following steps:
1) manually fixing the emergent light end of the optical fiber of the laser and facing the optical power sensor;
2) manually setting the time length T of repeated tests;
3) the computer sends a control instruction to the laser, so that the laser is turned on at a given current or voltage, and the laser emits light outwards through the optical fiber;
4) the computer sends a closing command to the motion module through the control module, and the motion module moves the light absorption module until receiving a signal of the limit sensor;
5) after the computer waits for the repeated testing time length T, a starting command is sent to the motion module through the control module, and the motion module moves the light absorption module until the light absorption module receives a signal of the limiting sensor;
6) the computer sends a reading command to the optical power sensor through the control module, and after the reading is finished, the measured data is recorded;
7) the computer judges whether the laser is ready for aging;
a) if yes, the computer actively turns off the laser and goes to step 8) to execute;
b) if not, go to step 7) to carry out;
8) repeating the process of steps 3) -6) until the process is manually stopped;
9) and generating a measurement data file and finishing the aging process.
According to the technical scheme, the device and the method for detecting the aging of the beam-combining optical fiber laser module carry out continuous and uninterrupted tracking monitoring through the device, the purpose of accurate and timely monitoring data is achieved, and the working efficiency and the monitoring precision can be improved.
Drawings
FIG. 1 is a graph of laser decay rate versus time;
FIG. 2 is a graph of laser output power versus time;
FIG. 3 is a schematic structural view of the present invention;
FIG. 4 is a control block diagram of the present invention;
fig. 5 is a schematic diagram of measurement performed by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
As shown in fig. 3, the apparatus for detecting aging of a beam-combining fiber laser module according to this embodiment includes a light power sensor 1, an absorption module 2, a motion module 3, and a control module 4.
The optical power sensor 1 is fixed on the base 6, the motion module 3 is also fixed on the base 6, the light absorption module 2 is installed on the motion module 3, the light absorption module moves up and down along with the motion of the screw rod, the control module 4 is connected with the motion module 3 and the optical power sensor 1 through a signal line and a current line, and the control module 4 can be independently installed at any position.
The following is a detailed description:
the optical power sensor 1 is a sensor for measuring optical power, and is connected to the control module 4.
The light-absorbing module 2 is a blackened metal plate used for absorbing light, and in the aging process, the blackened metal plate is driven by the motion module to move to the front of the optical power sensor 1 to prevent the emergent light of the optical fiber from irradiating the optical power sensor 1, so that the optical power sensor 1 is prevented from being damaged due to the fact that the laser irradiates the optical power sensor 1 for a long time.
The motion module 3 is composed of a motor 31, a guide rail 32, an upper limit sensor 33 and a lower limit sensor 34, and is connected to the control module 4, wherein the upper limit sensor 33 is used for acquiring a stop signal for shielding the optical power sensor 1, and the upper limit sensor 34 is used for acquiring a stop signal for exposing the optical power sensor 1. The switching mode of the motor 31 can be horizontal, vertical, rotary arm or shutter type.
The control module 4 is in communication connection with a computer through a serial port or a network port and is used for receiving a command of controlling the motion of the finger motion module 3 and a command of reading the reading of the optical power sensor 1. The control module 4 is connected with the optical power sensor 1 through a signal line and is used for reading data of the sensor. The control module 4 is connected with the motion module 3 through a signal line and is used for controlling the motion module 3 to move.
To complete the normal operation of the embodiment, additional preparation of the computer 5, laser 91 and optical fiber 92 is required. The optical power sensor 1 selects an optical power meter probe for measuring the optical power and is connected with the control module 4.
The light-absorbing module 2 is a black aluminum plate for absorbing light.
The laser 91 is connected to the computer 5 via a network port. The control module 4 is connected with the computer 5 through internet access communication.
The method for detecting the single laser device by adopting the embodiment of the invention comprises the following steps:
1) the exit end of the optical fiber 92 of the laser 91 is fixed and faced to the optical power sensor 1 manually.
2) And manually setting the time length T of the repeated test.
3) The computer 5 sends a control instruction to the laser 91 to turn on the laser 91 at a given current or voltage, at which time the laser 91 emits light outward through the optical fiber 92.
4) The computer 5 sends a closing command to the motion module 3 through the control module 4, and the motion module 3 moves the light absorption module 4 until receiving the signal of the limit sensor 33.
5) After waiting for the repeated test duration T, the computer 5 sends an opening command to the motion module 3 through the control module 4, and the motion module 3 moves the absorption optical module 2 until receiving a signal from the limit sensor 34.
6) The computer 5 sends a reading command to the optical power sensor 1 through the control module 3, and after the reading is finished, the measured data is recorded;
7) the computer 5 determines whether the laser 91 is ready for burn-in
a) If yes, the computer 5 turns off the laser actively and goes to step 8 to execute.
b) If not, go to step 7 to carry out.
8) The process of 3-6 is repeated until the process is manually stopped.
9) And generating a measurement data file and finishing the aging process.
Therefore, the aging detection device for the beam-combining fiber laser module carries out continuous and uninterrupted tracking and monitoring through the device, achieves the purpose of accurate and timely monitoring data, and can improve the working efficiency and the monitoring precision.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. The utility model provides a beam combination fiber laser module detection device that ages which characterized in that: the device comprises a light power sensor (1), a light absorption module (2), a motion module (3) and a control module (4);
the optical power sensor (1) is used for measuring optical power and is connected with the control module (4);
the absorption optical module (2) is driven by the motion module (3) to move to the front of the optical power sensor (1) in the aging process to prevent the emergent light of the optical fiber from irradiating the optical power sensor (1);
the motion module (3) comprises a motor (31), a guide rail (32), an upper limit sensor (33) and a lower limit sensor (34), and the motion module (3) is connected with the control module (4);
the optical power sensor (1) and the motion module (3) are respectively fixed on the base (6); the absorption optical module (2) is arranged on the motion module (3) and moves up and down along with the motion of the motor;
the upper limit sensor (33) is used for acquiring a stop signal for blocking the optical power sensor (1), and the lower limit sensor (34) is used for acquiring a stop signal for exposing the optical power sensor (1);
the control module (4) is in communication connection with a computer through a serial port or a network port and is used for receiving a command of controlling the motion of the finger motion module (3) and a command of reading the reading of the optical power sensor (1);
the control module (4) is connected with the optical power sensor (1) through a signal line and used for reading data of the sensor;
the control module (4) is connected with the motion module (3) through a signal line and is used for controlling the motion of the motion module (3).
2. The apparatus for detecting aging of a combined beam fiber laser module according to claim 1, wherein: the absorption optical module (2) is a blackened metal plate for absorbing light.
3. The apparatus for detecting aging of a combined beam fiber laser module according to claim 2, wherein: the switching form of the motor (31) is horizontal or vertical or rotary arm or shutter type.
4. The apparatus for detecting aging of a combined beam fiber laser module according to claim 1, wherein: the device also comprises a computer (5), wherein the computer (5) is connected with the control module (4).
5. A detection method of a beam combination semiconductor laser module is characterized by comprising the following steps: the method comprises the following steps:
1) manually fixing the emergent light end of an optical fiber (92) of a laser (91) and enabling the emergent light end to face an optical power sensor (1);
2) manually setting the time length T of repeated tests;
3) the computer (5) sends a control instruction to the laser (91) to enable the laser (91) to be turned on at a given current or voltage, and the laser (91) emits light outwards through the optical fiber (92);
4) the computer (5) sends a closing command to the motion module (3) through the control module (4), and the motion module (3) moves the absorption light module (4) until receiving a signal of the limit sensor (33);
5) after waiting for the repeated testing time length T, the computer (5) sends a starting command to the motion module (3) through the control module (4), and the motion module (3) moves the absorption light module (2) until receiving a signal of the limit sensor (34);
6) the computer (5) sends a reading command to the optical power sensor (1) through the control module (4), and after reading is finished, measurement data are recorded;
7) the computer (5) judges whether the laser (91) is ready for aging;
a) if yes, the computer (5) turns off the laser actively, and the step 8) is carried out;
b) if not, go to step 7) to carry out;
8) repeating the process of steps 3) -6) until the process is manually stopped;
9) and generating a measurement data file and finishing the aging process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011529459.2A CN112595916A (en) | 2020-12-22 | 2020-12-22 | Beam-combining optical fiber laser module aging detection device and detection method |
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| CN202011529459.2A CN112595916A (en) | 2020-12-22 | 2020-12-22 | Beam-combining optical fiber laser module aging detection device and detection method |
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| CN112595916A true CN112595916A (en) | 2021-04-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114200605A (en) * | 2021-12-06 | 2022-03-18 | 四川光恒通信技术有限公司 | Optical communication laser assembly coupling control system and method |
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2020
- 2020-12-22 CN CN202011529459.2A patent/CN112595916A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114200605A (en) * | 2021-12-06 | 2022-03-18 | 四川光恒通信技术有限公司 | Optical communication laser assembly coupling control system and method |
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