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Date
2015Type
- Conference Paper
ETH Bibliography
yes
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Abstract
We present a THZ quantum cascade laser operating in continuous wave with an emission covering more than one octave in frequency, and displaying homogeneous power distribution among the lasing modes. The gain medium is based on a heterogeneous quantum cascade structure operating in the THz range. Laser emission takes place from 1.64 THz to 3.35 THz with optical powers of 3 mW and 84 modes above threshold. For narrow waveguides a collapse of the free-running beatnote to linewidths of 980 Hz, limited by jitter, indicate frequency comb operation on a spectral bandwidth as wide as 624 GHz. Show more
Publication status
publishedExternal links
Book title
Quantum Sensing and Nanophotonic Devices XIIJournal / series
Proceedings of SPIEVolume
Pages / Article No.
Publisher
SPIEEvent
Subject
THz; Octave; Quantum cascade laserOrganisational unit
03759 - Faist, Jérôme / Faist, Jérôme
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ETH Bibliography
yes
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