Low-Loss RF Cavity for Quantum Cascade Laser Frequency Combs
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2019-10-17
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Conference Paper
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Abstract
Quantum cascade lasers (QLCs) are semiconductor devices, which are the dominant light source in the mid-IR part of the electromagnetic spectrum [1], and have recently been demonstrated to operate as frequency combs [2]. Characteristics of the comb operation are a broad, phase-locked optical spectrum of equidistant modes, and a strong narrow radio frequency (RF) beatnote, that is generated from the beating of those modes. One unique property of the QCL is the short upper-state lifetime, which allows the coupling between the injected current and the beatnote at the roundtrip frequency.
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2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
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8873289
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IEEE
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Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC 2019)
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03759 - Faist, Jérôme / Faist, Jérôme