The performance of the fiber specklegram sensor (FSS) by use of the waveguide coupled-mode theory is analyzed. The analyses are based on the microbending effect on the sensing fiber, in which we have found that the sensitivity of the FSS is affected by the core diameter and the bending geometry. Experimental confirmations of the analyses are also provided in which we have shown that experimental data are consistent with the analyses.
© 1995 Optical Society of America
Original Manuscript: June 13, 1994
Revised Manuscript: October 27, 1994
Published: June 1, 1995
Francis T. S. Yu, Jianzhong Zhang, Shizhuo Yin, and Paul B. Ruffin, "Analysis of a fiber specklegram sensor by using coupled-mode theory," Appl. Opt. 34, 3018-3023 (1995)