Abstract

By exploiting the inherent characteristics of dark-state resonators, we experimentally realize a single-frequency integrated microring laser system. This semiconductor laser can remain single-mode, even at high pump power levels, while allowing tunability over a wide spectral range. Our results demonstrate the potential of exceptional points as a versatile tool for mode selection in micro-cavity laser configurations.

© 2016 Optical Society of America

Parity-time-symmetric coupled microring lasers operating around an exceptional point

H. Hodaei, M. A. Miri, A. U. Hassan, W. E. Hayenga, M. Heinrich, D. N. Christodoulides, and M. Khajavikhan
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Single longitudinal mode lasing near the exceptional point in a fiber laser using a tunable isolator

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Dark state lasers

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Non-diffracting states at exceptional points

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