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Frequency stabilization of fiber grating laser using interferometric technique

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5 Author(s)
Chung, W.H. ; Dept. of Electr. Eng., Hong Kong Polytech. Univ., Kowloon, China ; Tam, H.Y. ; Demokan, M.S. ; Wai, P.K.A.
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Short cavity fiber grating lasers (FGLs) based on fiber Bragg grating (FBG) written on rare-earth doped fibers are attractive alternatives compared to semiconductor lasers for DWDM applications because of their wide tuning range, single mode output, as well as the ease to fabricate FBG with highly accurate wavelength that matches the ITU wavelength grids. However, the FGL wavelength is highly sensitive to operating conditions, and it is also subject to large frequency fluctuation and wavelength drift under strong pumping conditions. In this paper, the frequency fluctuation characteristics of a DBR FGL with a single FBG as the output reflector was investigated by employing an all-fiber unbalanced-arm scanning Michelson interferometer. A possible stabilization scheme using the error signal generated by the pseudo-heterodyne detection method is also demonstrated

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Lasers and Electro-Optics Society, 2001. LEOS 2001. The 14th Annual Meeting of the IEEE  (Volume:2 )

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