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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 13 — Jul. 1, 2014
  • pp: 3810–3813

Low loss, high-speed single-mode half-disk resonator

Xinbai Li, Qingzhong Deng, and Zhiping Zhou  »View Author Affiliations

Optics Letters, Vol. 39, Issue 13, pp. 3810-3813 (2014)

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This work proposes a new type of resonator: a single-mode half-disk resonator. Half of the resonator is solid, allowing large electrical or mechanical contacts, and a single-mode operation can be retained. A systematic design method is demonstrated and analyzed. For a 3 μm radius, the simulation predicts an internal Q-factor as high as 2.4×105, and a loaded Q-factor of 9000 is measured in experiments, comparable even with uncontacted microrings of bigger radii. The large contacts will improve the performance of a wide range of active devices. We present the contact resistance of a vertical PN junction modulator based on this structure, which can be reduced to nearly an order of magnitude, enabling a much faster modulation speed.

© 2014 Optical Society of America

OCIS Codes
(130.0130) Integrated optics : Integrated optics
(130.3120) Integrated optics : Integrated optics devices

ToC Category:
Integrated Optics

Original Manuscript: February 24, 2014
Manuscript Accepted: May 11, 2014
Published: June 20, 2014

Xinbai Li, Qingzhong Deng, and Zhiping Zhou, "Low loss, high-speed single-mode half-disk resonator," Opt. Lett. 39, 3810-3813 (2014)

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