Measurement of refractive index change due to CO2 laser irradiation using an LPG pair in optical fibers

Bokhyeon Kim; Tae-Jung Ahn; Y. Park; D.Y. Kim; Byeong Ha Lee; Youngjoo Chung; Un-Chul T. Paek; Won-Taek Han

doi:10.1117/12.444907

19 October 2001 Measurement of refractive index change due to CO₂ laser irradiation using an LPG pair in optical fibers

Bokhyeon Kim, Tae-Jung Ahn, Y. Park, D.Y. Kim, Byeong Ha Lee, Youngjoo Chung, Un-Chul T. Paek, Won-Taek Han

Proceedings Volume 4579, Optical Fiber and Planar Waveguide Technology; (2001) https://doi.org/10.1117/12.444907
Event: Asia-Pacific Optical and Wireless Communications Conference and Exhibit, 2001, Beijing, China

Abstract

Refractive index change in the core of optical fibers by CO2 laser irradiation was measured by using a long period fiber grating (LPG) pair. Effect of drawing force applied to the optical fibers during drawing process on the refractive index change upon the CO2 laser irradiation was investigated. The refractive index was found to decrease linearly with the drawing force and it was due to the relaxation of the residual stress. Effect of the CO2 laser output power on the residual stress relaxation and the fiber elongation was also studied.

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Bokhyeon Kim, Tae-Jung Ahn, Y. Park, D.Y. Kim, Byeong Ha Lee, Youngjoo Chung, Un-Chul T. Paek, and Won-Taek Han "Measurement of refractive index change due to CO₂ laser irradiation using an LPG pair in optical fibers", Proc. SPIE 4579, Optical Fiber and Planar Waveguide Technology, (19 October 2001); https://doi.org/10.1117/12.444907

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