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Title: Studies on strain and temperature characteristics of a slanted multimode fiber Bragg grating and its application in multiwavelength fiber Raman ring laser
Authors: Zhao, CL
Li, Z
Demokan, S
Yang, X
Jin, W 
Lu, C 
Issue Date: Jun-2006
Source: Journal of lightwave technology, June 2006, v. 24, no. 6, p.2394-2400
Abstract: Detailed strain and temperature characteristics of a 2°slanted multimode fiber Bragg grating (MFBG) are developed theoretically and observed experimentally. Results show that the strain and temperature sensitivities are almost the same for different transmission dips of the 2°slanted MFBG. Utilizing two characteristics of the 2°slanted MFBG, namely 1) resonant wavelength intensities strongly affected by excited mode propagating before the grating and 2) uniform strain sensitivities of different resonant wavelengths, a switchable and tunable multiwavelength fiber Raman ring laser is realized. The configuration is simple and multipurpose. Results show that the laser can generate single-, dual-, three-, four-, and five-wavelength lasing by switching between each operation if a mode scrambler (MS) that is inserted in front of the slanted MFBG is adjusted; furthermore, a 4.2-nm continuous wavelength-tuning range is achieved by straining the slanted MFBG when the MS is fixed.
Keywords: Fiber Raman laser
Multiwavelength fiber laser
Slanted multimode fiber Bragg gratings (MFBGs)
Wavelength switching
Wavelength tuning
Publisher: Institute of Electrical and Electronics Engineers
Journal: Journal of lightwave technology 
ISSN: 0733-8724
EISSN: 1558-2213
DOI: 10.1109/JLT.2006.874600
Rights: © 2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
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