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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 47, Iss. 17 — Jun. 10, 2008
  • pp: 3185–3195

Factorizable state-space model for active optical filter structures with two-port couplers

Issa Panahi and Govind Kannan  »View Author Affiliations

Applied Optics, Vol. 47, Issue 17, pp. 3185-3195 (2008)

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A state-space model (SSM) is developed for an integrated photonic architecture. This particular architecture is composed of two-port couplers and current-controllable semiconductor optical amplifiers (gains) fabricated on the same substrate. This device architecture leads to a new type of lattice filter structure. The SSM is shown to be factorizable into two matrices, one containing structural parameters of the two-port couplers, which are set during manufacturing, and the other containing the tunable gains. The SSM provides a systematic and practical approach to the analysis of the underlying filter structure, which can be easily extended to multiple-input, multiple-output optical filter structures with or without adjustable gains using two- or four-port couplers. A novel method of using the gains as loss compensation elements in addition to their tunable roles is developed.

© 2008 Optical Society of America

OCIS Codes
(070.1170) Fourier optics and signal processing : Analog optical signal processing
(250.5300) Optoelectronics : Photonic integrated circuits
(070.2025) Fourier optics and signal processing : Discrete optical signal processing
(130.7408) Integrated optics : Wavelength filtering devices

ToC Category:
Integrated Optics

Original Manuscript: September 17, 2007
Revised Manuscript: April 16, 2008
Manuscript Accepted: May 12, 2008
Published: June 4, 2008

Issa Panahi and Govind Kannan, "Factorizable state-space model for active optical filter structures with two-port couplers," Appl. Opt. 47, 3185-3195 (2008)

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  1. G. Kannan, I. M. S. Panahi, D. L. MacFarlane, L. R. Hunt, V. Ramakrishna, T. Constantinescu, and N. Spears, “Analysis and design of active optical filter structures with two-port couplers,” J. Lightwave Technol. 24 (2006). [CrossRef]
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