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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 25 — Dec. 10, 2007
  • pp: 16500–16505

A high speed 2×2 electro-optic switch using a polarization modulator

Qing Wang and Jianping Yao  »View Author Affiliations

Optics Express, Vol. 15, Issue 25, pp. 16500-16505 (2007)

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A high speed 2×2 electro-optic switch using a polarization modulator (PolM) is proposed and experimentally demonstrated. In the proposed switch, two linearly polarized input lightwaves with orthogonal polarization directions are sent to the PolM which is connected to a polarization beam splitter (PBS). When a switching signal is applied to the PolM, the polarization directions of the two lightwaves at the output of PolM will exchange. Consequently, the lightwaves at the two output ports of the PBS would be switched, a 2×2 switch is thus realized. An optical switch with a crosstalk lower than -35 dB and a switching time less than 25 ps is experimentally demonstrated. The performance of the switch is also experimentally investigated by studying the bit error rates and eye diagrams. A technique to achieve polarization independent operation is also proposed and discussed.

© 2007 Optical Society of America

OCIS Codes
(130.4815) Integrated optics : Optical switching devices
(060.6718) Fiber optics and optical communications : Switching, circuit
(130.5440) Integrated optics : Polarization-selective devices

ToC Category:
Integrated Optics

Original Manuscript: October 1, 2007
Revised Manuscript: November 19, 2007
Manuscript Accepted: November 20, 2007
Published: November 28, 2007

Qing Wang and Jianping Yao, "A high speed 2×2 electro-optic switch using a polarization modulator," Opt. Express 15, 16500-16505 (2007)

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