Optical fiber phase shift device capable of compensating optical path difference
A technology for compensating light and path difference, applied in the field of interferometry, can solve problems such as complex structure, achieve the effect of simplifying structure, simple structure, and realizing the interferometry process
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Embodiment 1
[0016] Embodiment 1: as figure 1 As shown, a fiber optic phase shift device capable of compensating optical path difference includes a first fiber coupler module, a second fiber coupler module and a base 3 . The first optical fiber coupler module is composed of a first optical fiber transmission line 101, a five-degree-of-freedom plus rotation adjustment optical fiber coupler 102, and a first bracket 103. The optical fiber coupler 102 is fixed in position by the first bracket 103, and the first optical fiber transmission line 101 is coupled with an optical fiber. The second optical fiber coupler module is composed of a second optical fiber transmission line 201, a five-degree-of-freedom plus rotation adjustment optical fiber coupler 202, a second bracket 203, a micro-motion translation stage 204, and a macro-motion translation stage 205. The stage 204 is fixed on the macro-motion stage 205 , the fiber coupler 202 is fixed on the micro-motion stage 204 by the second bracket 203...
Embodiment 2
[0020] Embodiment 2: as figure 2 As shown, an optical fiber phase shifting device capable of compensating optical path difference includes a first fiber coupler module, a second fiber coupler module and a base 6 . The first optical fiber coupler module is composed of an optical fiber transmission line 401, a five-degree-of-freedom plus rotation adjustment optical fiber coupler 402, a bracket 403, and a macro-motion translation stage 404. The fiber optic coupler 402 is fixed on the macro-motion translation stage 404 by the bracket 403. It is connected with the fiber coupler 402; the second fiber coupler module is composed of a fiber optic transmission line 501, a five-degree-of-freedom plus rotation adjustment fiber coupler 502, a bracket 503 and a micro-movement stage 504, and the fiber coupler 502 is fixed on the micro-motion stage 504 by the bracket 503. On the moving stage 504 , the optical fiber transmission line 501 is connected with the optical fiber coupler 502 .
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