TY - JOUR
AU - Nakanishi, Takuji
AB - This article describe a thermal lens (TL) spectroscopy gas sensing apparatus based on a wavelength sweep technique for a fiber ring laser. The configuration of this apparatus is basically a fiber ring laser containing a TL sensor head composed of two spherical-lensed fibers and wavelength-tunable devices on the inside of the ring. The wavelength can be swept by slightly rotating an etalon plate so that the optical absorption spectrum of a gas can be synchronously captured with a sweep signal. We demonstrate that the measured dynamic range of our proposed apparatus is tenfold that of a conventional one. The limit of detection was estimated to be approximately 400 Pa for the measurement time when the ν1+ν3 band in the acetylene of a few seconds under our experimental condition when the ν1+ν3 band in the acetylene (12C2H2) molecules was applied. 
TI - Thermal Lens Spectroscopy Gas Sensing Based on Etalon-Stabilized Wavelength Sweep Technique for Fiber Ring Laser
JF - Japanese Journal of Applied Physics
DO - 10.1143/JJAP.46.4324
DA - 2007-07-01
UR - https://www.deepdyve.com/lp/iop-publishing/thermal-lens-spectroscopy-gas-sensing-based-on-etalon-stabilized-DQpEidXy57
SP - 4324
VL - 46
IS - 7R
DP - DeepDyve
ER -