Refractive index modulation in endlessly-single-mode photonic crystal fiber by CO2 laser irradiation without surface-deformation is experimentally confirmed with a value of 1.68x10-3 for the first time, which is contributed by mechanical stress relaxation in fiber.
© 2005 Optical Society of America
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2330) Fiber optics and optical communications : Fiber optics communications
(230.0230) Optical devices : Optical devices
(230.3990) Optical devices : Micro-optical devices
Y. Zhu, P. Shum, H. Bay, M. Yan, X. Yu, and C. Lu, "Effect of CO2 Laser Irradiation on Refractive Index Modulation in Photonic Crystal Fiber," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2005), paper JWB47.
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