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Title: High finesse hollow-core fiber resonating cavity for high sensitivity gas sensing application
Authors: Tan, Y 
Jin, W 
Yang, F 
Ho, HL 
Keywords: Cavity enhancement
Fabry-Perot cavity
Gas detection
Hollow-core fiber
Optical fiber sensor
Issue Date: 2017
Publisher: SPIE-International Society for Optical Engineering
Source: Proceedings of SPIE : the International Society for Optical Engineering, 2017, v. 10323, 103230A, p. 2 How to cite?
Journal: Proceedings of SPIE : the International Society for Optical Engineering 
Abstract: We present all-fiber resonating Fabry-Perot gas cells made with a piece of hollow-core photonic bandgap fiber (HCPBF) sandwiched by two single mode fibers with mirrored ends. A HC-PBF cavity made of 6.75-cm-long HC-1550-06 fiber achieved a cavity finesse of 128, corresponding to an effective optical path length of 5.5 m. Such HC-PBF cavities can be used as absorption cells for high sensitivity gas detection with fast response. Preliminary experiment with a 9.4-cm-long resonating gas cell with a finesse of 68 demonstrated a detection limit better than 7.5 p.p.m. acetylene.
Description: 25th International Conference on Optical Fiber Sensors, OFS 2017, 24 - 28 April 2017
ISBN: 9781510610910
ISSN: 0277-786X
EISSN: 1996-756X
DOI: 10.1117/12.2265484
Appears in Collections:Conference Paper

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