A Quantum Walk Comb Source at Telecommunication Wavelengths

Fuente: arXiv
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Auteurs principaux: Marzban, Bahareh, Miller, Lucius, Dikopoltsev, Alexander, Bertrand, Mathieu, Scalari, Giacomo, Faist, Jérôme
Format: Preprint
Publié: 2024
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author Marzban, Bahareh
Miller, Lucius
Dikopoltsev, Alexander
Bertrand, Mathieu
Scalari, Giacomo
Faist, Jérôme
author_facet Marzban, Bahareh
Miller, Lucius
Dikopoltsev, Alexander
Bertrand, Mathieu
Scalari, Giacomo
Faist, Jérôme
contents We demonstrate a quantum walk comb in synthetic frequency space formed by externally modulating a semiconductor optical amplifier operating in the telecommunication wavelength range in a unidirectional ring cavity. The ultrafast gain saturation dynamics of the gain medium and its operation at high current injections is responsible for the stabilization of the comb in a broad frequency modulated state. Our device produces a nearly flat broadband comb with a tunable repetition frequency reaching a bandwidth of 1.8THz at the fundamental repetition rate of 1GHz while remaining fully locked to the RF drive. Comb operation at harmonics of the repetition rate up to 14.1GHz is also demonstrated. This approach paves the way for next-generation optical frequency comb devices with potential applications in precision ranging and high-speed communications.
format Preprint
id arxiv_https___arxiv_org_abs_2411_08280
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle A Quantum Walk Comb Source at Telecommunication Wavelengths
Marzban, Bahareh
Miller, Lucius
Dikopoltsev, Alexander
Bertrand, Mathieu
Scalari, Giacomo
Faist, Jérôme
Optics
We demonstrate a quantum walk comb in synthetic frequency space formed by externally modulating a semiconductor optical amplifier operating in the telecommunication wavelength range in a unidirectional ring cavity. The ultrafast gain saturation dynamics of the gain medium and its operation at high current injections is responsible for the stabilization of the comb in a broad frequency modulated state. Our device produces a nearly flat broadband comb with a tunable repetition frequency reaching a bandwidth of 1.8THz at the fundamental repetition rate of 1GHz while remaining fully locked to the RF drive. Comb operation at harmonics of the repetition rate up to 14.1GHz is also demonstrated. This approach paves the way for next-generation optical frequency comb devices with potential applications in precision ranging and high-speed communications.
title A Quantum Walk Comb Source at Telecommunication Wavelengths
topic Optics
url https://arxiv.org/abs/2411.08280