Amplitude- and frequency-modulated comb laser with sub-kHz RF beat note line width

Leonard Wegert; Dominik Auth; Christoph Weber; Dmitry Kazakov; Marco Piccardo; Johannes Hillbrand; Johannes Hillbrand; Benedikt Schwarz; Benedikt Schwarz; Federico Capasso; Stefan Breuer; Stefan Breuer

doi:10.1364/CLEO_SI.2021.SF2F.4

Conference on Lasers and Electro-Optics
OSA Technical Digest (Optica Publishing Group, 2021),
paper SF2F.4
•https://doi.org/10.1364/CLEO_SI.2021.SF2F.4

Amplitude- and frequency-modulated comb laser with sub-kHz RF beat note line width

Leonard Wegert, Dominik Auth, Christoph Weber, Dmitry Kazakov, Marco Piccardo, Johannes Hillbrand, Benedikt Schwarz, Federico Capasso, and Stefan Breuer

CLEO: Science and Innovations 2021

San Jose, California United States
9–14 May 2021
ISBN: 978-1-943580-91-0

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Ultrafast Lasers (SF2F)

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L. Wegert, D. Auth, C. Weber, D. Kazakov, M. Piccardo, J. Hillbrand, B. Schwarz, F. Capasso, and S. Breuer, "Amplitude- and frequency-modulated comb laser with sub-kHz RF beat note line width," in Conference on Lasers and Electro-Optics, J. Kang, S. Tomasulo, I. Ilev, D. Müller, N. Litchinitser, S. Polyakov, V. Podolskiy, J. Nunn, C. Dorrer, T. Fortier, Q. Gan, and C. Saraceno, eds., OSA Technical Digest (Optica Publishing Group, 2021), paper SF2F.4.

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Abstract

The generation of frequency-modulated and amplitude-modulated combs on demand by a multi-section quantum dot laser are presented. The combs are centered at 1265 nm (7900 cm^-¹). Temporally- and spectrally-resolved intensity and inter-modal phase as well as time and frequency domain analysis identify frequency-modulated and amplitude-modulated comb generation in dependence on the laser gain current and absorber reverse bias voltage. Radio-frequency beat note line widths as low as 200 Hz are reported.

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