论文信息 - Backscatter-immune, polarization managed, all fiber Sagnac sensing interferometer.

Backscatter-immune, polarization managed, all fiber Sagnac sensing interferometer.

We propose a new all fiber Mach-Zehnder-Sagnac hybrid interferometer topology for precision sensing. This configuration utilizes a high coherence laser source, mitigates the effects of Rayleigh backscatter and polarization wander, while eliminating scale factor drift. We also present preliminary experimental results, using telecommunications grade single mode fiber and fiber couplers, to demonstrate its principle of operation.

D. McClelland | J. Chow | M. Gray

[1] Meng-Tsan Tsai,et al. Fiber optic in-line distributed sensor for detection and localization of the pipeline leaks , 2007 .

[2] Scanning interferometric microscopy for the detection of ultrasmall phase shifts in condensed matter , 2006 .

[3] D. Shaddock,et al. Interferometric, modulation-free laser stabilization. , 2002, Optics letters.

[4] M. Matar,et al. Application of the NIMI technique to the 3/spl times/3 Sagnac fibre optic current sensor - experimental results , 2002, 2002 15th Optical Fiber Sensors Conference Technical Digest. OFS 2002(Cat. No.02EX533).

[5] S J Spammer,et al. Mach-zehnder and modified sagnac-distributed fiber-optic impact sensor. , 1998, Applied optics.

[6] Daniel T. Cassidy,et al. Modulation spectroscopy with a semiconductor diode laser by injection-current modulation , 1997 .

[7] Gustafson,et al. Sagnac interferometer for gravitational-wave detection. , 1996, Physical review letters.

[8] F. Schliep,et al. Polarisation dependence of the phase shift of 2*2 singlemode fibre directional couplers , 1994 .

[9] Vinet,et al. Optimization of long-baseline optical interferometers for gravitational-wave detection. , 1988, Physical review. D, Particles and fields.

[10] Max Born,et al. Principles of optics - electromagnetic theory of propagation, interference and diffraction of light (7. ed.) , 1999 .