High-performance THz QCL frequency combs (Conference Presentation)

Andres Forrer; Lorenzo Bosco; Mattias Beck; Jérôme Faist; Giacomo Scalari

doi:10.1117/12.2546349

10 March 2020 High-performance THz QCL frequency combs (Conference Presentation)

Andres Forrer, Lorenzo Bosco, Mattias Beck, Jérôme Faist, Giacomo Scalari

Proceedings Volume 11288, Quantum Sensing and Nano Electronics and Photonics XVII; 112881L (2020) https://doi.org/10.1117/12.2546349
Event: SPIE OPTO, 2020, San Francisco, California, United States

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.

Conference Presentation

Citation Download Citation

Andres Forrer, Lorenzo Bosco, Mattias Beck, Jérôme Faist, and Giacomo Scalari "High-performance THz QCL frequency combs (Conference Presentation)", Proc. SPIE 11288, Quantum Sensing and Nano Electronics and Photonics XVII, 112881L (10 March 2020); https://doi.org/10.1117/12.2546349

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