@InProceedings{HovenierJ.N._etal2006,
author="Hovenier J.N.
and Adam A.J.L.
and Ka{\v{s}}alynas I.
and Gao J.R.
and Klaassen T.O.
and Baryshev A.
and Williams B.S.
and Kumar S.
and Hu Q.
and Reno J.L.",
title="Phase-locking on the beat signal of a two-mode 2.7  terahertz metal-metal quantum cascade laser",
booktitle="Proc. Symp. IEEE/LEOS Benelux Chapter",
year="2006",
pages="125--128",
abstract="We have studied the linewidth and phase-locking of a 2.7 THz quantum cascade laser by using a superconducting bolometer mixer. The 8 GHz beat signal is compared with a microwave reference with a feedback to the laser bias current. Phase locking has been demonstrated, resulting in an extremely narrow beat linewidth of less than 10 Hz. Under frequency-stabilization conditions we find that the line profile is virtually Lorentzian with a long-term minimum linewidth of the THz modes of about 6.3 kHz. Temperature dependent measurements suggestthat this linewidthdoes not approach the Schawlow-Townes limit.",
optnote="exported from refbase (https://db.rplab.ru/refbase/show.php?record=968), last updated on Tue, 25 May 2021 14:48:25 -0500"
}