Coherent beam combination all-fiber laser
A technology of fiber lasers and coherent beams, which is applied to the structure/shape of laser devices, optical resonators, light guides, etc., can solve problems such as difficulties in high power output, and achieve good resistance to thermal and optical damage, high power output, Effect of Improving Injection Coupling Efficiency
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[0016] see figure 1 The structure of Embodiment 1 of the present invention is a coherent bundled all-fiber laser composed of two fiber lasers 5, which includes: a fiber grating H-FBG1 with high reflection to laser light (such as a reflectivity of 50%, 70%, etc.), Two pigtail output semiconductor pump sources LD2, two fiber pump beam combiners PC3, gain fiber 4, two fiber gratings L-FBG6 with low reflection to laser light (such as reflectivity 5%, 10%, etc.) and The collimation output system OC7, the high reflective fiber grating H-FBG1, the fiber pump beam combiner PC3, the gain fiber 4 and the low reflective fiber grating L-FBG6 together constitute the resonant cavity of the fiber laser 5.
[0017] The pigtail output semiconductor pump source LD2 is connected to the pump fiber 10 of the fiber pump combiner PC3. The two ends of the fiber grating H-FBG1 with high laser reflection are respectively connected to the signal fibers of the two fiber pump beam combiners PC3, and the ...
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