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Dispersive versus Dissipative Coupling for Frequency Synchronization in Lasers

Ding, Jiajie and Belykh, Igor and Marandi, Alireza and Miri, Mohammad-Ali (2019) Dispersive versus Dissipative Coupling for Frequency Synchronization in Lasers. Physical Review Applied, 12 (5). Art. No. 054039. ISSN 2331-7019. doi:10.1103/physrevapplied.12.054039.

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Coupling-enabled frequency synchronization is essential for an array of light sources operating in a photonic system. Using a two-dimensional nonlinear oscillator model of a laser, we analyze the role of two distinct types of coupling, dispersive and dissipative, in promoting frequency locking between two nonidentical lasers. In both scenarios the two oscillators synchronize into a frequency-locked state when the coupling level exceeds a critical value. We show that the onset of dispersive and dissipative synchronization processes is associated with hard and soft frequency transitions, respectively. Through analysis and numerics, we demonstrate that the dispersive coupling yields bistable synchronization modes, accompanied by asymmetric intensities, and the frequency controlled by the coupling strength. In contrast, dissipative coupling induces monostable synchronization with symmetric intensities and a coupling-independent frequency. Our results are expected to provide a basis for understanding the coupling mechanisms of frequency locking toward controlling synchronization in laser arrays.

Item Type:Article
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URLURL TypeDescription
Marandi, Alireza0000-0002-0470-0050
Miri, Mohammad-Ali0000-0003-3247-4596
Additional Information:© 2019 American Physical Society. Received 24 July 2019; revised manuscript received 8 October 2019; published 15 November 2019. Support for this project was provided by Professional Staff Congress–City University of New York Grant No. 62212-00 50, jointly funded by the Professional Staff Congress and the City University of New York. I.B. was supported by the National Science Foundation under Grant No. DMS-1909924. A.M. acknowledges funding from Army Research Office Grant No. W911NF-18-1-0285 and National Science Foundation Grant No. 1846273.
Funding AgencyGrant Number
City University of New York62212-00 50
Professional Staff CongressUNSPECIFIED
Army Research Office (ARO)W911NF-18-1-0285
Issue or Number:5
Record Number:CaltechAUTHORS:20191115-075219493
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:99862
Deposited By: Tony Diaz
Deposited On:15 Nov 2019 18:21
Last Modified:16 Nov 2021 17:49

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