Design and analysis of a control system for an optical delay-line circuit used as reconfigurable gain equalizer

Schlipf, T.R., Street, M.W., Pandavenes, J., McBride, R. and Cumming, D.R.S. (2003) Design and analysis of a control system for an optical delay-line circuit used as reconfigurable gain equalizer. Journal of Lightwave Technology, 21(9), pp. 1944-1952. (doi: 10.1109/JLT.2003.816838)

Abstract

The design and analysis of a control system for a coherent two-port lattice-form optical delay-line circuit used as reconfigurable gain equalizer is presented. The design of the control system, which is based on a real device model and a least-square optimization method, is described in detail. Analysis on a five-stage device for the 32 possible solutions of phase parameters showed that, for some filter characteristics, the variations in power dissipation can vary up to a factor of 2. Furthermore, the solution selection has influence on the optimization result and number of iterations needed. A sensitivity analysis of the phase parameters showed that the allowable error in the phase parameters should not exceed a standard deviation of /spl pi//500 in order to achieve a total maximal absolute accuracy error not greater than approximately 0.6 dB. A five-stage device has been fabricated using planar lightwave circuit technology that uses the thermooptic effect. Excellent agreement between simulations and measurements has been achieved.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Cumming, Professor David
• Authors: Schlipf, T.R., Street, M.W., Pandavenes, J., McBride, R., and Cumming, D.R.S.
• Subjects: Q Science > QC Physics; T Technology > T Technology (General)
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: Journal of Lightwave Technology
• Publisher: IEEE
• ISSN: 0733-8724
• Copyright Holders: Copyright © 2003 IEEE
• First Published: First published in Journal of Lightwave Technology 21(9):1944-1952
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher.