Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/5797
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Title: Novel fiber Bragg grating fabrication system for long gratings with independent apodization and with local phase and wavelength control
Authors: Chung, KM
Dong, L
Lu, C 
Tam, HY 
Issue Date: 20-Jun-2011
Source: Optics express, 20 June 2011, v. 19, no. 13, p. 12664-12672
Abstract: We proposed and demonstrated a novel practical fiber Bragg grating (FBG) fabrication setup constructed with high performance linear stages, piezoelectric translation (PZT) stages, and a highly stable continuous wave laser. The FBG fabrication system enables writing of long FBGs by a continuous translate-and-write process and allows implementation of arbitrary chirp and apodization. A key innovation is thatthe local Bragg wavelength is controlled by a simple movement of the phase mask by a PZT in the direction perpendicular to its surface. The focus position of the two writing beams is not changed during the Bragg wavelength change, an intrinsic feature of the design, ensuring simplicity, robustness and stability. Apodization can be achieved byvibrating the phase mask in the direction parallel to its surface by aPZT. Phase steps can also be inserted in FBGs at any desired locations by stepping the same PZT. A long uniform FBG and a linearly chirped FBG are written to demonstrate the performance of the setup.
Keywords: Continuous wave lasers
Fabrication
Fiber optic components
Publisher: Optical Society of America
Journal: Optics express 
EISSN: 1094-4087
DOI: 10.1364/OE.19.012664
Rights: © 2011 Optical Society of America. This paper was published in Optics express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/abstract.cfm?URI=oe-19-13-12664. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
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