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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 13 — Jun. 18, 2012
  • pp: 13651–13656

Directional single mode emission in a microcavity laser

Myung-Woon Kim, Chang-Hwan Yi, Sunghwan Rim, Chil-Min Kim, Jong-Hoi Kim, and Kwang-Ryung Oh  »View Author Affiliations

Optics Express, Vol. 20, Issue 13, pp. 13651-13656 (2012)

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We report directional single mode emission in an InGaAsP semiconductor microcavity laser, which is composed of a circle and an isosceles trapezoid. When exciting a whole cavity, the laser generates a single mode without hopping in two directions over a wide range of continuous injection currents. In the emission spectrum, it is confirmed from the equidistant mode spacing that a scar mode becomes a single lasing mode above the lasing threshold. A numerical analysis of the boundary element method shows that the far-field pattern of the resonance agrees well with that of the experiment.

© 2012 OSA

OCIS Codes
(140.3570) Lasers and laser optics : Lasers, single-mode
(140.5960) Lasers and laser optics : Semiconductor lasers
(140.3945) Lasers and laser optics : Microcavities

ToC Category:
Lasers and Laser Optics

Original Manuscript: March 9, 2012
Revised Manuscript: May 11, 2012
Manuscript Accepted: May 21, 2012
Published: June 4, 2012

Myung-Woon Kim, Chang-Hwan Yi, Sunghwan Rim, Chil-Min Kim, Jong-Hoi Kim, and Kwang-Ryung Oh, "Directional single mode emission in a microcavity laser," Opt. Express 20, 13651-13656 (2012)

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