[IEEE 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) - Munich, Germany (2019.6.23-2019.6.27)] 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) - Contaminant Free End-Capped Acetylene PMC for Sub-Doppler Spectroscopy

摘要： Gas-filled Hollow Core Photonic Cristal Fibres (HCPCF) or Photonic MicroCell (PMC) has proven to offer an outstanding gas-cell for laser metrology and spectroscopy applications. Sub-Doppler spectral features, generated via electromagnetically induced transparency (EIT) or saturated absorption (SA), have been generated in molecular gases despite the weak strength of their optical transitions, and an optical frequency reference with excellent accuracy has been demonstrated. Here, we report on fabrication and spectroscopic (EIT and SA spectroscopy) characterisation of contaminant free acetylene PMC where no He or glue is required. The assembly process of this PMC is based on end-capping both ends of a HCPCF by collapsing a sleeve capillary while the system is still connected to the vacuum preventing any air pollution. The end-cap is then polished and mounted onto FC/APC connectors for easy system integration.