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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 32 — Nov. 10, 2012
  • pp: 7788–7793

All-optical switching of a single wavelength in a silicon-based ring-assisted Mach–Zehnder interferometer

Yule Xiong and Winnie N. Ye  »View Author Affiliations

Applied Optics, Vol. 51, Issue 32, pp. 7788-7793 (2012)

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We theoretically investigate for the first time an all-optical switch using a silicon-based ring-assisted Mach–Zehnder interferometer (RAMZI), where the switch mechanism relies on Raman-induced loss. Compared to the conventional standalone microring resonator (MRR) switches, the RAMZI structure improves the fabrication tolerances by removing the critical coupling requirement for the MRR without compensating the switch performance. Moreover, the RAMZI structure provides an improved switching speed (5× faster) by shortening the photon lifetime of the MRR. Finally, the inverse Raman scattering of silicon guarantees a single wavelength selectivity for the switch.

© 2012 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(190.5650) Nonlinear optics : Raman effect
(230.1150) Optical devices : All-optical devices
(130.4815) Integrated optics : Optical switching devices

ToC Category:
Optical Devices

Original Manuscript: July 9, 2012
Revised Manuscript: October 19, 2012
Manuscript Accepted: October 19, 2012
Published: November 8, 2012

Yule Xiong and Winnie N. Ye, "All-optical switching of a single wavelength in a silicon-based ring-assisted Mach–Zehnder interferometer," Appl. Opt. 51, 7788-7793 (2012)

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