ISSTT Proceedings

ISSTT Proceedings

You searched for:search icon

No Keywords
Showing 0 of items from your search. Start over 

Phase-locking of a 2.7-THz Quantum Cascade Laser to a Microwave Reference

Authors:
A.M. Baryshev, P. Khosropanah, W. Zhang, W. Jellema, J.N. Hovenier, J.R. Gao, T.M. Klapwijk, D.G. Paveliev, B.S. William, S. Kumar, Q. Hu, J.L. Reno, B. Klein, J.L. Hesler
Abstract:
We demonstrate 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 (x2x3x2) from a microwave synthesizer at 15 GHz. Both laser and reference radiations are coupled into a hot electron bolometer mixer, resulting in a beat signal, which is fed into a phase-lock loop. Spectral analysis of the beat signal (see fig. 1) confirms that the QCL is phase locked. This result opens the possibility to extend heterodyne interferometers into the far-infrared range.
Categories:
QCLs
Year:
2009
Session:
M4
Full-text:
Download a PDF of this paper.
Page Number(s):
49-52