B.A.L. Gwandu, Wei Zhang, Xuewen Shu, L. Zhang, D. J. Webb, I. Bennion
Abstract
We present a technique for suppressing cladding-mode coupling loss in fiber Bragg grating fabrication. Suppression of cladding-modes down to 0.2 dB in a Bragg grating of 18 dB reflectivity has been achieved in hydrogen-loaded standard single-mode-fiber.
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We present a technique for suppressing cladding-mode coupling loss in fiber Bragg grating fabrication. Suppression of cladding-modes down to 0.2 dB in a Bragg grating of 18 dB reflectivity has been achieved in hydrogen-loaded standard single-mode-fiber.
Key concepts: Fiber Bragg grating, Cladding mode, Materials science, Cladding (metalworking), Long-period fiber grating, PHOSFOS, Optics, Single-mode optical fiber