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A laser optical path monitoring and protection method

A technology of lasers and optical paths, applied in the direction of laser monitoring devices, lasers, laser components, etc., can solve problems such as damage to the optical path of the previous stage, burning of optical fibers, etc., and achieve the effects of reducing economic losses, ensuring operational stability, and convenient and rapid recovery

Active Publication Date: 2021-10-01
JIANGSU WOOFEE LASER TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Once the laser fails and the power supply to the laser is not stopped in time, the failure will burn the core components such as optical fiber, beam combiner, and pump LD along the direction of the signal light, and will also cause damage to the front-end optical path

Method used

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  • A laser optical path monitoring and protection method

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Effect test

Embodiment

[0047] When N is set to 100, the number of times of exceeding the limit of a certain type of laser in each unit time segment and the cause of the failure sorted according to the number of times of exceeding the limit are shown in the following table.

[0048] Table 1 Record table of the number of times of exceeding the limit and the cause of failure of a certain type of laser in each unit time segment

[0049] unit time period Overrun times cause of issue T1:[0-500h] 8 (1) The temperature of the laser head; (2) The insertion is unstable; (3) The optical parts are damaged T2: [500-1000h] 7 (1) Laser head temperature; (2) Ambient temperature; (3) Unstable connection T3:[1000-1500h] 2 (1) Laser head temperature T4:[1500-2000h] 6 (1) Laser head temperature; (2) Ambient temperature; (3) Signal transmission T5:[2000-2500h] 5 (1) Laser head temperature; (2) Ambient temperature; T6:[2500-3000h] 11 (1) ambient temperature; (2)...

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Abstract

The invention relates to a method for monitoring and protecting the optical path of a laser, which can control and shut down the laser in a logical order at the first time when the laser fails, avoiding damage to the optical path and core components caused by the failure of the laser to be turned off in time, reducing economic losses, and minimizing the optical path It can be used for the overall monitoring and protection of the laser optical path during the test or production process, and it can also be used for the early construction of the laser optical path and the test of the stability of the laser light path for experiments and production.

Description

technical field [0001] The invention relates to a method for protecting an optical path, in particular to a method for monitoring and protecting an optical path of a laser. Background technique [0002] During the working process of the laser, the main oscillator generates high-quality seed light, and the power amplification part, that is, the amplifier, amplifies the seed light to achieve high energy output while ensuring the high beam quality of the output light. In order to optimize the laser The output index will adopt multi-stage amplification technology, that is, more than 2 power amplifiers are usually set to meet the output requirements. [0003] In order to avoid the spontaneous emission of the laser during operation, the first amplifier, the second amplifier, the Nth amplifier and the laser must be turned on and off in a sequential relationship, that is, the process of turning on the laser is usually: the power supply of the laser takes precedence over the first T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/00H01S3/10H01S3/09
CPCH01S3/0014H01S3/09H01S3/10
Inventor 宋金峰
Owner JIANGSU WOOFEE LASER TECH CO LTD