Parity-time-symmetric microring lasers

    Authors

    H. Hodaei; M. A. Miri; M. Heinrich; D. N. Christodoulides;M. Khajavikhan

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Abbreviated Journal Title

    Science

    Keywords

    SEMICONDUCTOR-LASERS; MICROCAVITIES; Multidisciplinary Sciences

    Abstract

    The ability to control the modes oscillating within a laser resonator is of fundamental importance. In general, the presence of competing modes can be detrimental to beam quality and spectral purity, thus leading to spatial as well as temporal fluctuations in the emitted radiation. We show that by harnessing notions from parity-time (PT) symmetry, stable single-longitudinal mode operation can be readily achieved in a system of coupled microring lasers. The selective breaking of PT symmetry can be used to systematically enhance the maximum attainable output power in the desired mode. This versatile concept is inherently self-adapting and facilitates mode selectivity over a broad bandwidth without the need for other additional intricate components. Our experimental findings provide the possibility to develop synthetic optical devices and structures with enhanced functionality.

    Journal Title

    Science

    Volume

    346

    Issue/Number

    6212

    Publication Date

    1-1-2014

    Document Type

    Article

    Language

    English

    First Page

    975

    Last Page

    978

    WOS Identifier

    WOS:000345696000038

    ISSN

    0036-8075

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