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Conferences > CLEOPR > 2011 > NP3 > J143
  • Proceedings of the International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim 2011
  • (Optica Publishing Group, 2011),
  • paper J143

Highly unidirectional whispering gallery mode lasers

Qi Jie Wang, Changling Yan, Nanfang Yu, Christian Pflügl, Laurent Diehl, Federico Capasso, Julia Unterhinninghofen, Jan Wiersig, Tadataka Edamura, and Masamichi Yamanishi

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Abstract

We report elliptical resonators with a wavelength-size notch at the boundary, which supports highly unidirectional emission from whispering gallery modes. Using quantum cascade lasers, a unidirectional in-plane beam divergence of 6 degrees has been demonstrated.

© 2011 AOS

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