[1] Jin W, Stewart G, Culshaw B, Murray S, Pinchbeck D. Absorption measurement of methane gas with a broadband light source and interferometric signal processing. Optics Letters, 1993, 18(16): 1364-1366

[2] Stuar A D, Samson P J. Optrode sensors for carbon monoxide and relative humidity. In: Proceedings of the 13th Australian Conference on Optical Fiber Technology. 1988, 117: 4-7

[3] Culshaw B, Moor E L, Zhang Z P. Advanced in Optical Fiber Sensors. Bellingham: SPIE Optical Engineering Press, 1992

[4] Uehara K, Tai H. Remote detection of methane with a 1.66-μm diode laser. Applied Optics, 1992, 31(6): 809-814

[5] Culshaw B, Stewart G, Dong F, Tandy C, Moodie D. Fiber optic techniques for remote spectroscopic methane detection—from concept to system realization. Sensors and Actuators B: Chemical, 1998, 51(1-3): 25-37

[6] Li S, Wei Z, Yin Z, Cui H L. Optical fiber gas sensor for remote detection of CH4 gas in underground mines. In: Proceedings of the Society for Photo-Instrumentation Engineers. Proceedings of SPIE, 2005, 5770: 205-212