Quantum walks: another view on mode-locking

Jérôme Faist; Ina Heckelmann; Mathieu Bertrand; Alex Dikopoltsev; Giacomo Scalari; Mattias Beck

doi:10.1117/12.3000999

13 March 2024 Quantum walks: another view on mode-locking

Jérôme Faist, Ina Heckelmann, Mathieu Bertrand, Alex Dikopoltsev, Giacomo Scalari, Mattias Beck

Proceedings Volume PC12905, Novel In-Plane Semiconductor Lasers XXIII; PC1290505 (2024) https://doi.org/10.1117/12.3000999
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

It has been shown that ring quantum cascade lasers can emit solitons when the driving current is large enough such that spontaneous symmetry breaking occurs between the clockwise and counter-clockwise modes . We show that ring devices with very low backscattering will emit an optical frequency comb when injected with RF close to the round trip frequency. This result is interpreted as a new form of active mode-locking with a fast saturable gain. The transient behavior of the device is studied by time resolved spectroscopy.

Conference Presentation

Citation Download Citation

Jérôme Faist, Ina Heckelmann, Mathieu Bertrand, Alex Dikopoltsev, Giacomo Scalari, and Mattias Beck "Quantum walks: another view on mode-locking", Proc. SPIE PC12905, Novel In-Plane Semiconductor Lasers XXIII, PC1290505 (13 March 2024); https://doi.org/10.1117/12.3000999

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