Investigation of A Slow-Light Enhanced Near-Infrared Absorption Spectroscopic Gas Sensor, Based on Hollow-Core Photonic Band-Gap Fiber
Zhi-Fa Wu,
Chuan-Tao Zheng,
Zhi-Wei Liu,
Dan Yao,
Wen-Xue Zheng,
Yi-Ding Wang,
Fei Wang,
Da-Ming Zhang
Affiliations
Zhi-Fa Wu
State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, 2699 Qianjin Street, Jilin University, Changchun 130012, China
Chuan-Tao Zheng
State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, 2699 Qianjin Street, Jilin University, Changchun 130012, China
Zhi-Wei Liu
State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, 2699 Qianjin Street, Jilin University, Changchun 130012, China
Dan Yao
State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, 2699 Qianjin Street, Jilin University, Changchun 130012, China
Wen-Xue Zheng
State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, 2699 Qianjin Street, Jilin University, Changchun 130012, China
Yi-Ding Wang
State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, 2699 Qianjin Street, Jilin University, Changchun 130012, China
Fei Wang
State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, 2699 Qianjin Street, Jilin University, Changchun 130012, China
Da-Ming Zhang
State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, 2699 Qianjin Street, Jilin University, Changchun 130012, China
Generic modeling and analysis of a slow-light enhanced absorption spectroscopic gas sensor was proposed, using a mode-tuned, hollow-core, photonic band-gap fiber (HC-PBF) as an absorption gas cell. Mode characteristics of the un-infiltrated and infiltrated HC-PBF and gas absorption enhancement of the infiltrated HC-PBF were analyzed. A general rule of microfluidic parameters for targeting different gas species in the near-infrared was obtained. Ammonia (NH3) was used as an example to explore the effects of slow light on gas detection. The second harmonic (2f) signal and Allan deviation were theoretically investigated based on the derived formulations.
