Hollow photon crystal optical fiber-based optical fiber-connected low-pressure gas chamber device
A hollow-core photonic crystal and optical fiber connection technology, which is used in measurement devices, material analysis by optical means, instruments, etc., can solve the problems of complex optical structure, low detection sensitivity, short absorption distance, etc., and achieves small size and optical fiber connection. Simple structure, easy installation and debugging
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[0015] Optical fiber based on hollow-core photonic crystal fiber is connected to low-pressure gas chamber. It includes: ordinary 1.55um single-mode fiber 1, photonic crystal fiber 2, optical fiber connector 3, bare fiber adapter 4, ordinary 1.55um multi-mode fiber 5, sealed metal gas chamber 6 gas input (outlet) valve 7. The characteristic of the photonic crystal fiber connected to the low-pressure gas chamber is: the photonic crystal fiber optical path replaces the traditional gas chamber geometric optical path. Because the optical fiber can be surrounded, it can overcome the shortcomings of the traditional single-pass gas chamber which is limited by the working distance and the gas detection sensitivity is limited. Compared with the gas chamber, the optical fiber optical path has the advantages of strong anti-interference ability, small transmission loss, and good working stability. It can overcome the disadvantages of the traditional long-range gas chamber structure, difficul...
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