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Proceedings Paper

High-performance THz QCL frequency combs (Conference Presentation)
Author(s): Andres Forrer; Lorenzo Bosco; Mattias Beck; Jérôme Faist; Giacomo Scalari

Paper Abstract

A broadband, Cu-Cu THz quantum cascade laser is presented. The device shows an 50% improved dynamical range and doubled peak power in pulsed compared to Au-Au devices. The pulsed maximum lasing temperature was increased from 105 K to 133 K. In CW similar bandwidths for Cu-Cu and Au-Au devices are observed with an increased temperature performance. At 77 K the emitted power of the device is reduced by 57% compared to 30 K. At this temperature a single narrow beatnote is observed, which can be locked to an RF synthesizer. THz comb emission spans roughly 800 GHz.

Paper Details

Date Published: 10 March 2020
Proc. SPIE 11288, Quantum Sensing and Nano Electronics and Photonics XVII, 112881L (10 March 2020); doi: 10.1117/12.2546349
Show Author Affiliations
Andres Forrer, ETH Zürich (Switzerland)
Lorenzo Bosco, ETH Zürich (Switzerland)
Mattias Beck, ETH Zürich (Switzerland)
Jérôme Faist, ETH Zürich (Switzerland)
Giacomo Scalari, ETH Zürich (Switzerland)

Published in SPIE Proceedings Vol. 11288:
Quantum Sensing and Nano Electronics and Photonics XVII
Manijeh Razeghi; Jay S. Lewis; Giti A. Khodaparast; Pedram Khalili, Editor(s)

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