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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 22 — Nov. 4, 2013
  • pp: 27003–27010

12.5 pm/V hybrid silicon and lithium niobate optical microring resonator with integrated electrodes

Li Chen, Michael G. Wood, and Ronald M. Reano  »View Author Affiliations


Optics Express, Vol. 21, Issue 22, pp. 27003-27010 (2013)
http://dx.doi.org/10.1364/OE.21.027003


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Abstract

We present a silicon microring resonator with a lithium niobate top cladding and integrated tuning electrodes. Submicrometer thin films of z-cut lithium niobate are bonded to silicon microring resonators via benzocyclobutene. Integrated electrodes are incorporated to confine voltage controlled electric fields within the lithium niobate thin film. The electrode design utilizes thin film metal electrodes and an optically transparent electrode wherein the silicon waveguide core serves as both an optical waveguide medium and as a conductive electrode medium. The hybrid material system combines the electro-optic functionality of lithium niobate with the high index contrast of silicon waveguides, enabling compact low tuning voltage microring resonators. Optical characterization of fabricated devices results in a measured loaded quality factor of 11,500 and a free spectral range of 7.15 nm in the infrared. The demonstrated tunability is 12.5 pm/V, which is over an order of magnitude greater than electrode-free designs.

© 2013 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(130.6010) Integrated optics : Sensors
(230.5750) Optical devices : Resonators

ToC Category:
Integrated Optics

History
Original Manuscript: September 10, 2013
Revised Manuscript: October 24, 2013
Manuscript Accepted: October 24, 2013
Published: October 31, 2013

Citation
Li Chen, Michael G. Wood, and Ronald M. Reano, "12.5 pm/V hybrid silicon and lithium niobate optical microring resonator with integrated electrodes," Opt. Express 21, 27003-27010 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-22-27003


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