Optimization of refractive index sampling for multichannel fiber Bragg gratings

A comprehensive analysis of multichannel grating optimization strategies is presented. The central idea is in dephasing of partial gratings with respect to each other. This dephasing allows the utilization of ultraviolet-induced refractive index changes with maximum efficiency. The dependence of group delay ripple on optimization strategy, number of channels, and other grating characteristics is also briefly discussed. Finally, we discuss further generalization of the dephasing approach to the case of multichannel gratings with nonidentical spectral characteristics.

[1]  Benjamin J. Eggleton,et al.  Broadband and WDM dispersion compensation using chirped sampled fibre Bragg gratings , 1995 .

[2]  K. Hill,et al.  Photosensitivity in optical fiber waveguides: Application to reflection filter fabrication , 1978 .

[3]  T. Nojima,et al.  Minimising peak-to-average power ratio of multitone signals using steepest descent method , 1995 .

[4]  R. Gerchberg.  A practical algorithm for the determination of phase from image and diffraction plane pictures , 1972 .

[5]  Branislav M. Popovic,et al.  Synthesis of power efficient multitone signals with flat amplitude spectrum , 1991, IEEE Trans. Commun..

[6]  Michalis N. Zervas,et al.  An efficient inverse scattering algorithm for the design of nonuniform fiber Bragg gratings , 1999 .

[7]  Alexander V. Buryak,et al.  Novel multi-channel grating devices , 2001 .

[8]  Jian H. Zhao,et al.  Optical Filter Design and Analysis , 1999 .

[9]  J. Skaar,et al.  On the synthesis of fiber Bragg gratings by layer peeling , 2001 .

[10]  M. Durkin,et al.  Sinc-sampled fiber Bragg gratings for identical multiple wavelength operation , 1998, IEEE Photonics Technology Letters.

[11]  Morten Ibsen,et al.  All-fibre 4/spl times/10 Gbit/s WDM link with DFB fibre laser transmitters and single sinc-sampled fibre grating dispersion compensator , 1999 .

[12]  L. Poladian,et al.  Simple grating synthesis algorithm. , 2000, Optics letters.

[13]  M. Guy,et al.  Multi-channel fiber Bragg gratings for dispersion and slope compensation , 2002, Optical Fiber Communication Conference and Exhibit.

[14]  H. Ishii,et al.  Quasicontinuous wavelength tuning in super-structure-grating (SSG) DBR lasers , 1996 .

[15]  Joshua E. Rothenberg,et al.  High-channel-count fiber Bragg gratings fabricated by phase-only sampling , 2002, Optical Fiber Communication Conference and Exhibit.

[16]  H. Szu.  Fast simulated annealing , 1987 .