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30 April 2004Analyze the group delay ripple of chirped fiber gratings using CWT
Dispersion-compensating chirped fiber gratings provide a compact low-loss means of compensating fiber dispersion.
They are potential candidates for per-channel tunable dispersion compensation devices [2]. Group delay ripple (GDR) is
the principle reason restraining the practical implementation of chirped fiber Bragg gratings and many papers indicate
how the GDR impairs the systems performance [1, 3, 4]. S.Jamal has indicated that the period of the group delay ripple
has much important influence on the systems performance [1]. But the ripple period of the chirped fiber grating was not
consistent along side the grating, and Michael Sumetsky has explained the cutoff phenomenon of the high frequency in
[2]. Because the period of the chirped fiber grating changed with the wavelength and the components of different
frequency overlapped with each other, the time-frequency analysis was needed to descript the time-frequency distribution
of the GDR of the grating. [5]
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Zhongwei Tan, Yongjun Fu, Tigang Ning, Tangjun Li, Yan Liu, Shuisheng Jian, "Analyze the group delay ripple of chirped fiber gratings using CWT," Proc. SPIE 5279, Optical Fibers and Passive Components, (30 April 2004); https://doi.org/10.1117/12.521473