Title :
Cavity ring-down in a fibre amplifier loop and combination with wavelength modulation spectroscopy [gas detection]
Author :
Atherton, K. ; Stewart, G. ; Culshaw, B.
Author_Institution :
Dept. of Electron. & Electr. Eng., Strathclyde Univ., Glasgow, UK
Abstract :
Assessed the suitability of a fibre cavity ring-down system for gas detection. Whilst relatively long ring-down times have been achieved, the sensitivity and stability of the system are not currently sufficient for monitoring the low gas concentrations of interest. We are therefore currently examining combining cavity ring-down with wavelength modulation spectroscopy and results are forthcoming.
Keywords :
fibre optic sensors; gas sensors; modulation spectroscopy; cavity ring-down; fibre amplifier loop; gas concentrations; gas detection; ring-down times; sensitivity; stability; wavelength modulation spectroscopy; Absorption; Erbium; Gases; Monitoring; Optical coupling; Optical fiber amplifiers; Optical fiber couplers; Optical fibers; Optical sensors; Spectroscopy;
Conference_Titel :
Optical Fiber Sensors Conference Technical Digest, 2002. Ofs 2002, 15th
Conference_Location :
Portland, OR, USA
Print_ISBN :
0-7803-7289-1
DOI :
10.1109/OFS.2002.1000811
