Long-period fiber grating effects with double-sided loading on fiber

Chung-Yih Tang; Paoyi Tseng; Chih-Nan Lin; Chih Chung Yang; Yean-Woei Kiang; Kung-Jen Ma

doi:10.1117/12.481204

28 August 2002 Long-period fiber grating effects with double-sided loading on fiber

Chung-Yih Tang, Paoyi Tseng, Chih-Nan Lin, Chih Chung Yang, Yean-Woei Kiang, Kung-Jen Ma

Proceedings Volume 4904, Optical Fiber and Planar Waveguide Technology II; (2002) https://doi.org/10.1117/12.481204
Event: Asia-Pacific Optical and Wireless Communications 2002, 2002, Shanghai, China

Abstract

Periodical perturbations along an optical fiber can cause power coupling between the core mode and cladding modes for the applications of spectral filtering and derivative operations. Such perturbations can be generated through periodical loading on fiber. By applying loading onto fiber with two face-to-face, identical periodical groove structures, it was found that the long-period grating effects were dependent on the relative phase of the two periodical corrugations. Particularly, when the relative phase was zero (crest-to-crest), spectral filtering effects disappeared completely. The comparisons of such results between the cases of jacketed and un-jacketed fibers led to the conclusion that geometric deformation, instead of direct pressure-induced effect, was the dominating mechanism for generating spectral filtering functions in the double-sided loading configuration. The same conclusion can be applied to the single-sided loading device.

Citation Download Citation

Chung-Yih Tang, Paoyi Tseng, Chih-Nan Lin, Chih Chung Yang, Yean-Woei Kiang, and Kung-Jen Ma "Long-period fiber grating effects with double-sided loading on fiber", Proc. SPIE 4904, Optical Fiber and Planar Waveguide Technology II, (28 August 2002); https://doi.org/10.1117/12.481204

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KEYWORDS

Optical filters

Phase matching

Cladding

Copper

Refractive index

Communication engineering

Fiber couplers

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