Title :
Compact optical millimetre-wave source using a dual-mode semiconductor laser
Author :
Lima, C.R. ; Wake, D. ; Davies, P.A.
Author_Institution :
Electron. Eng. Labs., Kent Univ., Canterbury, UK
fDate :
3/2/1995 12:00:00 AM
Abstract :
The authors demonstrate the optical generation of extremely narrow linewidth millimetre-wave signals between 40 and 60 GHz using a single-chip semiconductor laser. A dual-mode long-cavity multisection DFB semiconductor laser is driven at a subharmonic of the free-running-mode beat signal frequency to produce phase-locked millimetre waves with a 3 dB linewidth of less than 10 Hz and a 3 dB locking range of ~500 MHz
Keywords :
distributed feedback lasers; laser beam applications; laser cavity resonators; laser modes; millimetre wave generation; semiconductor lasers; signal sources; spectral line breadth; 40 to 60 GHz; EHF; compact source; dual-mode semiconductor laser; long-cavity multisection DFB laser; narrow linewidth MM-wave signals; optical generation; optical millimetre-wave source; phase-locked millimetre waves; single-chip semiconductor laser;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19950237
