Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/100371
Title: Laser-mode bifurcations induced by PT-breaking exceptional points
Authors: Zhu, Bofeng
Wang, Qi Jie
Chong, Yi Dong
Keywords: Bifurcations
Laser Dynamics
DRNTU::Science::Physics
Issue Date: 2019
Source: Zhu, B., Wang, Q. J., & Chong, Y. D. (2019). Laser-mode bifurcations induced by PT-breaking exceptional points. Physical Review A, 99(3), 033829-. doi:10.1103/PhysRevA.99.033829
Series/Report no.: Physical Review A
Abstract: A laser consisting of two independently pumped resonators can exhibit mode bifurcations that evolve out of the exceptional points (EPs) of the linear system at threshold. The EPs are non-Hermitian degeneracies occurring at the parity–time-reversal (PT) symmetry-breaking points of the threshold system. Above threshold, the EPs become bifurcations of the nonlinear zero-detuned laser modes, which can be most easily observed by making the gain saturation intensities in the two resonators substantially different. Small pump variations can then switch abruptly between different laser behavior, e.g., between below-threshold and PT-broken single-mode operation.
URI: https://hdl.handle.net/10356/100371
http://hdl.handle.net/10220/48575
ISSN: 2469-9926
DOI: 10.1103/PhysRevA.99.033829
Rights: © 2019 American Physical Society. All rights reserved. This paper was published in Physical Review A and is made available with permission of American Physical Society.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles
SPMS Journal Articles

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