Optical fiber combiner with power monitoring device and power monitoring method thereof
A fiber combiner and monitoring device technology, which is applied to the coupling of lasers, optical waveguides, and laser components, etc., can solve the problems of lack of high-power fiber laser power output and so on.
Active Publication Date: 2019-12-06
WUHAN RAYCUS FIBER LASER TECHNOLOGY CO LTD
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Problems solved by technology
[0004] Therefore, monitoring the power output of high-power fiber lasers by monitoring the power output in the fiber combiner is currently a lack of methods for monitoring the power output of high-power fiber lasers
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[0017] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0018] Monitoring the power output of the high-power fiber laser by monitoring the power output in the fiber combiner is currently a lack of method for monitoring the power output of the high-power fiber laser.
[0019] figure 1 It is a structural schematic diagram of a fiber combiner with a power monitoring device according to a preferred embodiment of the present invention, as figure 1 As shown, the embodiment of the present invention provides a fiber combiner with a power monitoring device, including: input optical fiber 1, output optical fiber 2 and power sensor 3, input optical fiber 1 and output optical fiber 2 are fused, laser 4 and power sensor 3 Connect to input...
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The invention provides an optical fiber bundle combiner with a power monitoring device and a power monitoring method thereof. The device comprises an input optical fiber, an output optical fiber, a laser and a power sensor; an input optical fiber and an output optical fiber are fused, and the laser and the power sensor are respectively connected with the input optical fiber. The invention providesan optical fiber bundle combiner with a power monitoring device and a power monitoring method thereof, According to the light reflected from the welding points of the input optical fiber and the output optical fiber in the monitoring optical fiber combiner, the reflected light from the end face of the output optical fiber and the reflected light from the surface of the machined part enter the laser power of the power sensor respectively, so as to monitor the emission of the laser. When the power sensor can not detect any reflected light, it means that the laser internal failure, can not normally light; When the reflected light power detected by the power sensor is too high, the laser power emitted by the laser is too high. At this time, the laser should be turned off in time to prevent damage to the optical fiber bundle combiner.
Description
technical field [0001] Embodiments of the present invention relate to the field of optical fiber combiners, in particular to an optical fiber combiner with a power monitoring device and a power monitoring method thereof. Background technique [0002] Fiber lasers have the advantages of small size, high integration, and stable operation. In fine processing, the output power of fiber laser has a key influence on the processing effect. In high-power laser applications, the reflected light from the cladding may directly damage key components inside the laser. Therefore, how to monitor the real-time output laser power of fiber lasers and how to monitor whether the reflected light exceeds the threshold is a key technical requirement in the application of high-power fiber lasers. [0003] Fiber combiner is one of the key fiber components of high-power fiber lasers, and it is the most direct way to increase the output power of fiber lasers. At present, due to reasons such as the ...
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IPC IPC(8): H01S3/10G02B6/255
CPCG02B6/2551H01S3/10015
Inventor 祝启欣李成闫大鹏黄中亚
Owner WUHAN RAYCUS FIBER LASER TECHNOLOGY CO LTD