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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Editor: Henry M. Van Driel
  • Vol. 24, Iss. 3 — Mar. 1, 2007
  • pp: 615–623

Gaussian-like spectra equalization with linear-phase lattice filters

Qi Jie Wang, Ying Zhang, Zhao Gang Dong, and Yeng Chai Soh  »View Author Affiliations

JOSA B, Vol. 24, Issue 3, pp. 615-623 (2007)

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We present a design scheme to achieve equalization of Gaussian-like spectra by using linear-phase optical lattice filters. The proposed scheme separates the design of the phase response from the amplitude response of the equalization filter by introducing a symmetrically folded lattice structure. With the proposed structure, the linear-phase characteristic of the equalization filter is guaranteed regardless of the other design parameters. Then the amplitude response of the equalization filter is designed through a constrained optimization problem solved by using an efficient recursive algorithm. In addition to theoretical analysis, the effectiveness of the proposed design scheme is demonstrated by simulations and experiments through the equalization of a super-luminescence light-emitting diode as an illustrative example.

© 2007 Optical Society of America

OCIS Codes
(060.2380) Fiber optics and optical communications : Fiber optics sources and detectors
(070.6020) Fourier optics and signal processing : Continuous optical signal processing
(230.1150) Optical devices : All-optical devices
(230.3670) Optical devices : Light-emitting diodes

ToC Category:
Optical Devices

Original Manuscript: August 30, 2006
Manuscript Accepted: September 28, 2006
Published: February 15, 2007

Qi Jie Wang, Ying Zhang, Zhao Gang Dong, and Yeng Chai Soh, "Gaussian-like spectra equalization with linear-phase lattice filters," J. Opt. Soc. Am. B 24, 615-623 (2007)

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