The attenuation spectra from single mode fibers with different cut-off wavelengths
under the influence of the periodic microbending
Wanvisa Talataisong1,*, Ratchapak Chitaree2,#
Department of Physics, Faculty of Science, Mahidol University, 272 Rama VI Road
Ratchathewi Bangkok 10400, Thailand.
*e-mail: wanvisaboo@gmail.com
Abstract
The attenuation spectra from the perturbed optical fiber are an important parameter that can
be utilized in fiber sensing applications. Generally, the attenuations found in the optical fiber
are from many causes. In this study, the attenuation of single mode optical fibers due to the
periodic microbending is investigated. A broadband spectrum beam from a tungsten halogen
lamp is launched into the fibers. The attenuation signals are detected by a spectrometer. The
observed attenuation spectra from single mode optical fibers with different cut-off
wavelengths under the periodic microbending significantly differ. This suggests that the
attenuation spectra due to the periodic perturbation depend on the fiber cut-off wavelength.
Sensing applications based on the single mode optical fiber utilizing the attenuation spectra
found are also discussed.
Keywords: microbending, cut-off wavelength, attenuation spectra, fiber sensor, single mode
fiber
References
1.
Manish H. Nasta ; Vivek Arya ; Kent A. Murphy ; Anbo Wang and Richard O. Claus
"Periodic microbending on single-mode optical fibers for multiplexed sensing",Proc. SPIE 2191, Smart
Structures and Materials 1994: Smart Sensing, Processing, and Instrumentation, 475 (May 1, 1994);
doi:10.1117/12.173979;