Unidirectional emission from a cardioid-shaped microcavity laser | Zendy

In-Goo Lee | Zendy; Sung-Min Go | Zendy; Jinhyeok Ryu | Zendy; Chang-Hwan Yi | Zendy; Sung-Bock Kim | Zendy; Kwang Ryung Oh | Zendy; Chil-Min Kim | Zendy

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Unidirectional emission from a cardioid-shaped microcavity laser

Author(s) -

In-Goo Lee,

Sung-Min Go,

Jinhyeok Ryu,

Chang-Hwan Yi,

Sung-Bock Kim,

Kwang Ryung Oh,

Chil-Min Kim

Publication year - 2016

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.24.002253

Subject(s) - laser , optics , semiconductor laser theory , materials science , excited state , optoelectronics , semiconductor , physics , atomic physics

We find unidirectional emission in a cardioid-shaped microcavity laser. When a deformation parameter is well adjusted, rays starting around a period-5 unstable periodic orbit emit unidirectionally. To confirm the emission direction, we fabricate a laser by using an InGaAsP semiconductor and investigate emission characteristics. When the laser is excited by current injection with a dc current, resonances localized on the period-5 unstable periodic orbit emit unidirectionally.

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