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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN 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)
http://dx.doi.org/10.1364/AO.47.003185


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Abstract

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

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

Citation
Issa Panahi and Govind Kannan, "Factorizable state-space model for active optical filter structures with two-port couplers," Appl. Opt. 47, 3185-3195 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-17-3185


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References

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