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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 2 — Jan. 21, 2008
  • pp: 535–548

Optical cross-connect circuit using hitless wavelength selective switch

Yuta Goebuchi, Masahiko Hisada, Tomoyuki Kato, and Yasuo Kokubun  »View Author Affiliations


Optics Express, Vol. 16, Issue 2, pp. 535-548 (2008)
http://dx.doi.org/10.1364/OE.16.000535


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Abstract

We have proposed and demonstrated the basic elements of a full matrix optical switching circuit (cross-connect circuit) using a hitless wavelength selective switch (WSS). The cross-connect circuits are made of a multi-wavelength channel selective switch consisting of cascaded hitless WSSs, and a multi-port switch. These switching elements are realized through the individual Thermo-Optic (TO) tuning of a series-coupled microring resonator, and can switch arbitrary wavelength channels without blocking other wavelength channels during tuning. We demonstrate a four wave-length selective switch using a parallel topology of double series coupled microring resonators and a three wavelength selective switch using a parallel topology of quadruple series coupled microring resonators. Since the spectrum shape of quadruple series coupled microring is much more box-like than the double series, a high extinction ratio of 39.0–46.6 dB and low witching cross talk of 19.3–24.5 dB were achieved.

© 2008 Optical Society of America

OCIS Codes
(130.4815) Integrated optics : Optical switching devices
(130.7408) Integrated optics : Wavelength filtering devices

ToC Category:
Integrated Optics

History
Original Manuscript: October 22, 2007
Revised Manuscript: December 20, 2007
Manuscript Accepted: December 20, 2007
Published: January 7, 2008

Citation
Yuta Goebuchi, Masahiko Hisada, Tomoyuki Kato, and Yasuo Kokubun, "Optical cross-connect circuit using hitless wavelength selective switch," Opt. Express 16, 535-548 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-2-535


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References

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