Temporal cavity solitons in a laser-based microcomb: A path to a self-starting pulsed laser without saturable absorption

Antonio Cutrona; Pierre Henry Hanzard; Maxwell Rowley; Juan Sebastian Totero-Gongora; Marco Peccianti; Boris A. Malomed; Gian Luca Oppo; Alessia Pasquazi

doi:10.1364/OE.418283

Temporal cavity solitons in a laser-based microcomb: A path to a self-starting pulsed laser without saturable absorption

Antonio Cutrona, Pierre Henry Hanzard, Maxwell Rowley, Juan Sebastian Totero-Gongora, Marco Peccianti, Boris A. Malomed, Gian Luca Oppo, Alessia Pasquazi^*

^*Corresponding author for this work

School of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

We theoretically present a design of self-starting operation of microcombs based on laser-cavity solitons in a system composed of a micro-resonator nested in and coupled to an amplifying laser cavity. We demonstrate that it is possible to engineer the modulational-instability gain of the system’s zero state to allow the start-up with a well-defined number of robust solitons. The approach can be implemented by using the system parameters, such as the cavity length mismatch and the gain shape, to control the number and repetition rate of the generated solitons. Because the setting does not require saturation of the gain, the results offer an alternative to standard techniques that provide laser mode-locking.

Original language	English
Pages (from-to)	6629-6646
Number of pages	18
Journal	Optics Express
Volume	29
Issue number	5
DOIs	https://doi.org/10.1364/OE.418283
State	Published - 1 Mar 2021

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Funders	Funder number
Horizon 2020 Framework Programme	851758

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10.1364/OE.418283

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abstract = "We theoretically present a design of self-starting operation of microcombs based on laser-cavity solitons in a system composed of a micro-resonator nested in and coupled to an amplifying laser cavity. We demonstrate that it is possible to engineer the modulational-instability gain of the system{\textquoteright}s zero state to allow the start-up with a well-defined number of robust solitons. The approach can be implemented by using the system parameters, such as the cavity length mismatch and the gain shape, to control the number and repetition rate of the generated solitons. Because the setting does not require saturation of the gain, the results offer an alternative to standard techniques that provide laser mode-locking.",

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AU - Totero-Gongora, Juan Sebastian

AU - Peccianti, Marco

AU - Malomed, Boris A.

AU - Oppo, Gian Luca

AU - Pasquazi, Alessia

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AB - We theoretically present a design of self-starting operation of microcombs based on laser-cavity solitons in a system composed of a micro-resonator nested in and coupled to an amplifying laser cavity. We demonstrate that it is possible to engineer the modulational-instability gain of the system’s zero state to allow the start-up with a well-defined number of robust solitons. The approach can be implemented by using the system parameters, such as the cavity length mismatch and the gain shape, to control the number and repetition rate of the generated solitons. Because the setting does not require saturation of the gain, the results offer an alternative to standard techniques that provide laser mode-locking.

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Temporal cavity solitons in a laser-based microcomb: A path to a self-starting pulsed laser without saturable absorption

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