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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 9 — Apr. 27, 2009
  • pp: 7043–7051

Performance influence of carrier absorption to the Mach-Zehnder-interference based silicon optical switches

Haifeng Zhou, Yong Zhao, Wanjun Wang, Jianyi Yang, Minghua Wang, and Xiaoqing Jiang  »View Author Affiliations


Optics Express, Vol. 17, Issue 9, pp. 7043-7051 (2009)
http://dx.doi.org/10.1364/OE.17.007043


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Abstract

The free carrier absorption effect in silicon modulation is a detrimental behavior that can influence the crosstalk of interference-based optical switches. Based on the experimental analysis of a 2×2 p-i-n silicon switch, we give a conservative estimate of the crosstalk ability of Mach-Zehnder optical switches. Experimental result shows that, while using a 1475μm-long phase shifter, the loss penalty almost reaches 1.45dB/π, which deteriorates the most ideal crosstalk to just 30dB. The possible solutions to overcome this limitation are also discussed at the cost of the other device performance.

© 2009 Optical Society of America

OCIS Codes
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(130.3120) Integrated optics : Integrated optics devices

ToC Category:
Integrated Optics

History
Original Manuscript: March 6, 2009
Revised Manuscript: April 2, 2009
Manuscript Accepted: April 2, 2009
Published: April 13, 2009

Citation
Haifeng Zhou, Yong Zhao, Wanjun Wang, Jianyi Yang, Minghua Wang, and Xiaoqing Jiang, "Performance influence of carrier absorption to the Mach-Zehnder-interference based silicon optical switches," Opt. Express 17, 7043-7051 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-9-7043


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