• Complex
  • Title
  • Keyword
  • Abstract
  • Scholars
  • Journal
  • ISSN
  • Conference
成果搜索

author:

Han Wang (Han Wang.) [1] | Longhang Weng (Longhang Weng.) [2] | Wenwei Yu (Wenwei Yu.) [3]

Abstract:

Methane is a flammable and explosive gas, which is the main component of mashgas and natural gas.Methane monitoring plays an important role in coal mine safety and natural gas.The high-Q whispering gallery mode (WGM) of optical microcavity has a long photon lifetime, which greatly prolongs the effective optical path between light and surroundings,and has the potential to be made into miniaturized and highly sensitive gas sensor device.In order to realize the high Q microcavity WGM enhancement light absorption methane gas sensor,the key technology is to lock the resonant frequency of the microsphere cavity to the DFB laser frequency.In order to ensure the intrinsic safety of the CH4 sensor, the resonance wavelength of the all-optically tuning microsphere cavity was studied, so that it was locked to the wavelength of the CH4 absorption peak of 1653.72nm. The resonant wavelength of the microsphere was tuned by injecting light along the fiber handle of the microsphere, and the refractive index of the microsphere was changed by absorbing light and converting heat with the coating of the sphere crown.

Keyword:

all light tuning CH gas detection Optical microsphere whispering gallery mode (WGM)

Reprint 's Address:

Email:

Show more details

Related Keywords:

Source :

Journal of Physics:Conference Series

ISSN: 1742-6588

Year: 2023

Issue: 1

Volume: 2464

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

Online/Total:168/10010295
Address:FZU Library(No.2 Xuyuan Road, Fuzhou, Fujian, PRC Post Code:350116) Contact Us:0591-22865326
Copyright:FZU Library Technical Support:Beijing Aegean Software Co., Ltd. 闽ICP备05005463号-1