TY  - JOUR
AU  - Khosropanah P.
AU  - Baryshev A.
AU  - Zhang W.
AU  - Jellema W.
AU  - Hovenier J.N.
AU  - Gao G.R.
AU  - Klapwijk T.M
AU  - Paveliev D.G.
AU  - Williams B.S.
AU  - Kumar S.
AU  - Hu Q.
AU  - Reno J.L.
AU  - Klein B.
AU  - Hesler J.L.
PY  - 2009
DA  - 2009//
TI  - Phase-locking of a 2.7-THz quantum cascade laser to a microwave reference
JO  - Optics Letters
SP  - 2958
EP  - 2960
VL  - 34
AB  - We demonstrate the phase locking of a 2.7 THz metal–metal waveguide quantum cascade laser (QCL) to an external microwave signal. The reference is the 15th harmonic, generated by a semiconductor superlattice nonlinear device, of a signal at 182 GHz, which itself is generated by a multiplier chain (X

12) from amicrowave synthesizer at ~ 15 GHz. Both laser and reference radiations are coupled into a bolometer mixer, resulting in a beat signal, which is fed into a phase-lock loop. The spectral analysis of the beat signal con-firms that the QCL is phase locked. This result opens the possibility to extend heterodyne interferometers into the far-infrared range.
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=966), last updated on Mon, 06 Jul 2015 15:25:01 -0500
ID  - KhosropanahP._etal2009
ER  -