Title :
Passive modelocking in semiconductor lasers with monolithically integrated passive waveguides
Author :
Camacho, F. ; Avrutin, E.A. ; Bryce, A.C. ; Marsh, J.H.
Author_Institution :
Dept. of Electron. & Electr. Eng., Glasgow Univ., UK
fDate :
2/1/1998 12:00:00 AM
Abstract :
A low-loss passive waveguide, fabricated by quantum well intermixing (QWI), has been integrated with an active region to form a modelocked semiconductor laser with an extended passive cavity (ECL). The 4 mm-long device has a threshold current of 18 mA and, modelocking at 9.3 GHz, generates 3.5 ps wide optical pulses with jitter levels as low as 9.3 ps (1 kHz-1 MHz). The variation of the modelocking frequency with the biasing conditions of such devices is also measured and a tuning range of ~1% of the modelocking frequency is observed
Keywords :
integrated optics; integrated optoelectronics; laser cavity resonators; laser mode locking; optical losses; quantum well lasers; waveguide lasers; 18 mA; 3.5 ps; 4 mm; 9.3 GHz; 9.3 ps; active region; biasing conditions; extended passive cavity (; jitter levels; low-loss passive waveguide; modelocked semiconductor laser; modelocking frequency; monolithically integrated passive waveguides; passive modelocking; ps wide optical pulses; quantum well intermixing; semiconductor lasers; threshold current; tuning range;
Journal_Title :
Optoelectronics, IEE Proceedings -
DOI :
10.1049/ip-opt:19981784
