HOLLOW-CORE PHOTONIC CRYSTAL FIBER GAS CELL AND MANUFACTURING METHOD THEREFOR

摘要

A hollow-core photonic crystal fiber gas cell and a manufacturing method therefor. The hollow-core photonic crystal fiber gas cell comprises a single-mode fiber (103), a fiber splicing protection sleeve (105), a hollow-core photonic crystal fiber (111) and a photoelectric detector (121). One end of the single-mode fiber (103) is fused with one end of the hollow-core photonic crystal fiber (111) so that a fusion splice (107) is formed and one end of a sealed hollow-core photonic crystal fiber gas cell is formed. The fiber splicing protection sleeve (105) protects the fusion splice (107) in a covering manner. The hollow-core photonic crystal fiber gas cell is characterized in that the other end of the hollow-core photonic crystal fiber (111) is processed into an output end (115) in a fusion sealing manner. An output end surface faces, but is not parallel to, a detection surface of the photoelectric detector (121). The hollow-core photonic crystal fiber gas cell effectively alleviates the background noise problem of transmitted light of existing hollow-core photonic crystal fiber gas cells and has the characteristics of being small in size, light in weight and high in stability.