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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 26 — Dec. 21, 2009
  • pp: 23793–23808

Design of a digital, ultra-broadband electro-optic switch for reconfigurable optical networks-on-chip

Joris Van Campenhout, William M. J. Green, and Yurii A. Vlasov  »View Author Affiliations


Optics Express, Vol. 17, Issue 26, pp. 23793-23808 (2009)
http://dx.doi.org/10.1364/OE.17.023793


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Abstract

We present a novel design for a noise-tolerant, ultra-broadband electro-optic switch, based on a Mach-Zehnder lattice (MZL) interferometer. We analyze the switch performance through rigorous optical simulations, for devices implemented in silicon-on-insulator with carrier-injection-based phase shifters. We show that such a MZL switch can be designed to have a step-like switching response, resulting in improved tolerance to drive-voltage noise and temperature variations as compared to a single-stage Mach-Zehnder switch. Furthermore, we show that degradation in switching crosstalk and insertion loss due to free-carrier absorption can be largely overcome by a MZL switch design. Finally, MZL switches can be designed for having an ultra-wide, temperature-insensitive optical bandwidth of more than 250nm. The proposed device shows good potential as a broadband optical switch in reconfigurable optical networks-on-chip.

© 2009 Optical Society of America

OCIS Codes
(130.4815) Integrated optics : Optical switching devices
(250.6715) Optoelectronics : Switching

ToC Category:
Integrated Optics

History
Original Manuscript: November 3, 2009
Revised Manuscript: December 7, 2009
Manuscript Accepted: December 7, 2009
Published: December 11, 2009

Citation
Joris Van Campenhout, William M. Green, and Yurii A. Vlasov, "Design of a digital, ultra-broadband electro-optic switch for reconfigurable optical networks-on-chip," Opt. Express 17, 23793-23808 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-26-23793


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