论文信息 - Limitation of absorption-based fiber optic gas sensors by coherent reflections.

Limitation of absorption-based fiber optic gas sensors by coherent reflections.

We report the noise limitation of fiber optic gas sensors with highly coherent laser sources. Interference between signal and reflected waves causes signal fluctuation in the output; this limits the performance of the sensing system. Sensor resolutions limited by coherent reflections are calculated and compared with experimental results.

B Culshaw | M S Demokan | G Stewart | W Jin | W Philp

[1] Hideo Tai,et al. Long-distance Simultaneous Detection Of Methane And Acetylene By Using Diode Lasers in Combination With Optical Fibers , 1992, 8th Optical Fiber Sensors Conference.

[2] V. Weldon,et al. Methane and carbon dioxide sensing using a DFB laser diode operating at 1.64 mu m , 1993 .

[3] M A Neifeld,et al. Optical memory: introduction by the feature editors. , 1996, Applied optics.

[4] B Culshaw,et al. Source-noise limitation of fiber-optic methane sensors. , 1995, Applied optics.

[5] B. Moslehi. Noise power spectra of optical two-beam interferometers induced by the laser phase noise , 1986 .

[6] Y. Shimose,et al. Remote sensing of methane gas by differential absorption measurement using a wavelength tunable DFB LD , 1991, IEEE Photonics Technology Letters.