Title :
Linewidth narrowed vertical-cavity surface-emitting lasers for millimeter-wave generation by optical heterodyning
Author :
Dowd, P. ; White, I.H. ; Tan, M.R.T. ; Wang, S.Y.
Author_Institution :
Dept. of Electr. & Electron. Eng., Bristol Univ., UK
fDate :
4/1/1997 12:00:00 AM
Abstract :
Narrow beat-note linewidths as low as 190 kHz have been obtained by optically heterodyning two vertical-cavity surface-emitting lasers (VCSELs) whose linewidths are minimized by optical feedback. Narrow line operation has been achieved stably at frequencies up to a detector limited value of 25 GHz for both free space and fiber-loop arrangements
Keywords :
laser cavity resonators; laser feedback; millimetre wave lasers; quantum well lasers; semiconductor laser arrays; spectral line narrowing; surface emitting lasers; 190 kHz; 25 GHz; GaAs; VCSEL; detector limited value; fiber-loop arrangement; free space arrangement; linewidth narrowed vertical-cavity surface-emitting lasers; millimeter-wave generation; narrow beat-note linewidths; narrow line operation; optical feedback; optical heterodyning; top emitting GaAs QW; Distributed feedback devices; Fiber lasers; Laser feedback; Millimeter wave technology; Optical feedback; Optical fiber polarization; Optical mixing; Optical surface waves; Surface emitting lasers; Vertical cavity surface emitting lasers;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/2944.605685
