Title: Fiber Bragg grating sequential UV-writing method with real-time interferometric side-diffraction position monitoring
Authors: Hsu, KC
Sheu, LG
Chuang, KP
Chang, SH
Lai, YC
Department of Photonics
Issue Date: 16-May-2005
Abstract: This work presents a new sequential UV-writing procedure for fabricating long fiber Bragg grating (FBG) devices. To real-time accurately align the position of every exposed FBG section prior to UV exposure, a single-period reference fiber grating with strong refractive index modulation is probed by applying an interferometric side-diffraction method to measure the grating phase as the position reference. In this way the overlapped FBG sections can be connected section-by-section without obvious phase errors, even when the written index-modulation is weak. (C) 2005 Optical Society of America.
URI: http://dx.doi.org/10.1364/OPEX.13.003795
ISSN: 1094-4087
DOI: 10.1364/OPEX.13.003795
Volume: 13
Issue: 10
Begin Page: 3795
End Page: 3801
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