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Thermo-optical pulsing in a microresonator filtered fiber-laser: a route towards all-optical control and synchronization

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posted on 2023-06-09, 18:18 authored by Maxwell Rowley, Benjamin Wetzel, Luigi Di Lauro, Juan Sebastian Totero Gongora, Hualong Bao, Jonathan Silver, Leonardo Del Bino, Pascal Del Haye, Marco Peccianti, Alessia Pasquazi
We report on 'slow' pulsing dynamics in a silica resonator-based laser system: by nesting a high-Q rod-resonator inside an amplifying fiber cavity, we demonstrate that trains of microsecond pulses can be generated with repetition rates in the hundreds of kilohertz. We show that such pulses are produced with a period equivalent to several hundreds of laser cavity roundtrips via the interaction between the gain dynamics in the fiber cavity and the thermo-optical effects in the high-Q resonator. Experiments reveal that the pulsing properties can be controlled by adjusting the amplifying fiber cavity parameters. Our results, confirmed by numerical simulations, provide useful insights on the dynamical onset of complex self-organization phenomena in resonator-based laser systems where thermo-optical effects play an active role. In addition, we show how the thermal state of the resonator can be probed and even modified by an external, counter-propagating optical field, thus hinting towards novel approaches for all-optical control and sensing applications.

Funding

EPSRC Doctoral Training Partnership 2016-17; G1950; EPSRC-ENGINEERING & PHYSICAL SCIENCES RESEARCH COUNCIL; EP/N509784/1

History

Publication status

  • Published

File Version

  • Published version

Journal

Optics Express

ISSN

1094-4087

Publisher

Optical Society of America

Issue

14

Volume

27

Page range

19242-19254

Department affiliated with

  • Physics and Astronomy Publications

Research groups affiliated with

  • Atomic, Molecular and Optical Physics Research Group Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2019-07-03

First Open Access (FOA) Date

2019-07-03

First Compliant Deposit (FCD) Date

2019-07-02

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