All-fiber mode converter and light system
A mode converter, all-fiber technology, applied in optical waveguides, light guides, optics, etc., can solve problems such as inability to achieve mode coupling, achieve high conversion efficiency, low conversion noise, and achieve simple effects
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[0047] The present invention will be further described with reference to the accompanying drawings.
[0048] like figure 1 As shown, the optical system of the all-fiber mode converter of the present invention includes an input fiber 10, two mode field matchers (20, 40), an all-fiber mode converter (30), an output fiber (50), and an input fiber (10). ), the first mode field matcher (20), the all-fiber mode converter (30), the second mode field matcher (40), and the output fiber (50) are fused together in sequence to achieve the purpose of mode conversion. The first propagation mode is transmitted from the input fiber 10 through the first mode field matcher (20) to the all-fiber mode converter (30) with the lowest loss. After the all-fiber mode converter (30), only the There are two propagation modes, and then the second mode field matcher (40) transmits the second propagation mode to the output fiber 50 with minimum loss for output.
[0049] like figure 2Shown is a schemati...
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