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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 22 — Oct. 24, 2011
  • pp: 22248–22257

Broadband circulators based on directional coupling of one-way waveguides

Wenjun Qiu, Zheng Wang, and Marin Soljačić  »View Author Affiliations


Optics Express, Vol. 19, Issue 22, pp. 22248-22257 (2011)
http://dx.doi.org/10.1364/OE.19.022248


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Abstract

Resonator-based optical circulators are fundamentally bandwidth-limited by their quality factors. We propose a new type of circulator based on directional coupling between one-way photonic chiral edge states and conventional two-way waveguides. The operational bandwidth of such circulators is tied to the bandwidth of the directional waveguide coupler and has the potential for simultaneous broadband operation and small device footprint.

© 2011 OSA

OCIS Codes
(230.3810) Optical devices : Magneto-optic systems
(230.5298) Optical devices : Photonic crystals

ToC Category:
Coupled Resonators

History
Original Manuscript: June 29, 2011
Revised Manuscript: August 16, 2011
Manuscript Accepted: September 4, 2011
Published: October 24, 2011

Virtual Issues
Collective Phenomena (2011) Optics Express

Citation
Wenjun Qiu, Zheng Wang, and Marin Soljačić, "Broadband circulators based on directional coupling of one-way waveguides," Opt. Express 19, 22248-22257 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-22-22248


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