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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 2 — Jan. 15, 2009
  • pp: 163–165

Designing and understanding directional emission from spiral microlasers

Martina Hentschel and Tae-Yoon Kwon  »View Author Affiliations

Optics Letters, Vol. 34, Issue 2, pp. 163-165 (2009)

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The availability of microlasers with highly directional far-field characteristics is crucial for future applications. To this end we study the far-field emission of active microcavities with a spiral shape using the Schrödinger–Bloch model. We find that they can provide directional emission under the conditions of (i) pumping along the resonator boundary and (ii) for specific resonator geometries. We systematically study the far-field characteristics under variation of the pumped area and the cavity geometry and identify a directionality optimized regime. Our results consistently explain previously obtained experimental results.

© 2009 Optical Society of America

OCIS Codes
(140.1540) Lasers and laser optics : Chaos
(140.3410) Lasers and laser optics : Laser resonators
(140.3945) Lasers and laser optics : Microcavities

ToC Category:
Lasers and Laser Optics

Original Manuscript: September 29, 2008
Revised Manuscript: November 25, 2008
Manuscript Accepted: November 29, 2008
Published: January 13, 2009

Martina Hentschel and Tae-Yoon Kwon, "Designing and understanding directional emission from spiral microlasers," Opt. Lett. 34, 163-165 (2009)

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