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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 4 — Feb. 1, 2009
  • pp: 679–690

Influence of nonideal chirped fiber Bragg grating characteristics on all-optical clock recovery based on the temporal Talbot effect

Masaki Oiwa, Shunsuke Minami, Kenichiro Tsuji, Noriaki Onodera, and Masatoshi Saruwatari  »View Author Affiliations


Applied Optics, Vol. 48, Issue 4, pp. 679-690 (2009)
http://dx.doi.org/10.1364/AO.48.000679


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Abstract

We theoretically and experimentally evaluate the influence of the bandwidth limitation and group delay ripple (GDR) of linearly chirped fiber Bragg gratings (LCFBGs) on the all-optical clock recovery utilizing the temporal Talbot effect. To simulate the reasonably arbitrary shape of the GDR of LCFBGs, the generalized distribution function model of GDR was proposed and utilized. The quality of recovered clock pulses was evaluated by using the proposed parameters “peak variation” and “pulse visibility.” Simulation results indicated that both the signal pulses with < 1 % duty factor and LCFBGs with the bandwidth of > 125 times the bit rate, 10 nm for 10 Gbit / s input signal, were required to obtain both < 20 % peak variation and > 17 dB pulse visibility of the clock pulses recovered from 2 7 1 pseudorandom bit sequence (PRBS) pulses, and indicated that the LCFBGs with < 20 ps peak-to-peak GDR could recover the clock pulses from the 10 Gbit / s signal with almost the same quality as that recovered with an ideal LCFBG (with no GDR). In addition, it was revealed that < 20 ps peak-to-peak GDR did not degrade the timing jitter reduction effect. Qualitative agreement of the experimental and simulation results justified our analytical methods. Our analytical approach and results will be very useful to practically design the LCFBGs for an all-optical clock recovery circuit based on the temporal Talbot effect.

© 2009 Optical Society of America

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(070.6760) Fourier optics and signal processing : Talbot and self-imaging effects
(320.5550) Ultrafast optics : Pulses
(060.3735) Fiber optics and optical communications : Fiber Bragg gratings

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: September 19, 2008
Revised Manuscript: December 4, 2008
Manuscript Accepted: December 20, 2008
Published: January 21, 2009

Citation
Masaki Oiwa, Shunsuke Minami, Kenichiro Tsuji, Noriaki Onodera, and Masatoshi Saruwatari, "Influence of nonideal chirped fiber Bragg grating characteristics on all-optical clock recovery based on the temporal Talbot effect," Appl. Opt. 48, 679-690 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-4-679

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