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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 33, Iss. 10 — May. 15, 2008
  • pp: 1150–1152

Single-frequency coupled asymmetric microcavity laser

Lei Shang, Liying Liu, and Lei Xu  »View Author Affiliations


Optics Letters, Vol. 33, Issue 10, pp. 1150-1152 (2008)
http://dx.doi.org/10.1364/OL.33.001150


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Abstract

Single-mode lasing from a coupled asymmetric microcavity is achieved. By coupling two size mismatched circular microrings to form a coupled asymmetric microcavity, multi-whispering-gallery modes are successfully suppressed and single-frequency laser emission is robustly obtained. Moreover, the laser emits in four directions, and each beam has a divergence of only 6.6 ° . It is demonstrated further that this single-frequency coupled microcavity laser can be easily integrated with planar lightwave circuits. We provide an easily accessible approach to achieve a single-frequency laser from microcavity lasers operating on whispering-gallery modes.

© 2008 Optical Society of America

OCIS Codes
(140.3410) Lasers and laser optics : Laser resonators
(160.6060) Materials : Solgel
(230.4910) Optical devices : Oscillators

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: February 11, 2008
Manuscript Accepted: March 31, 2008
Published: May 14, 2008

Citation
Lei Shang, Liying Liu, and Lei Xu, "Single-frequency coupled asymmetric microcavity laser," Opt. Lett. 33, 1150-1152 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-10-1150


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