Title :
Monolithic passive mode-locking in single contact tapered lasers
Author :
Williams, K.A. ; Summers, H.D. ; Rahman, M. K Abd ; Müller, J. ; Laughton, F.R. ; White, I.H. ; Penty, R.V. ; Jiang, Z. ; Sarma, J. ; Middlemast, I. ; Ralston, J.D.
Author_Institution :
Sch. of Phys., Bath Univ., UK
fDate :
30 Oct-2 Nov 1995
Abstract :
We report the monolithic passive mode-locking of a single contact tapered laser without a separate saturable absorber section. Pulsewidths of 850 fs have been achieved at a repetition rate of 116 GHz, with average powers of about 8 mW. The drive current range over which mode-locking is observed is enhanced compared with passive mode-locking in multisection lasers. The physical mechanisms believed to be responsible for the mode-locked operation arise directly from the nature of the taper itself. Due to the single contact electrical driving conditions, this device is suitable for obtaining mode-locked pulses in a very simple manner and, unlike multisection lasers, can be easily mounted p-side down for efficient heat-sinking for CW mode-locked operation
Keywords :
III-V semiconductors; gallium arsenide; high-speed optical techniques; indium compounds; laser beams; laser mode locking; optical harmonic generation; optical saturable absorption; quantum well lasers; waveguide lasers; 116 GHz; 8 mW; 850 fs; CW mode-locked operation; GaAs-Al0.6Ga0.4As; In0.25Ga0.75As; average power; drive current range; electrical driving conditions; heat-sinking; mode-locked operation; mode-locked pulses; monolithic passive mode-locking; multisection lasers; physical mechanisms; pulsewidths; repetition rate; single contact tapered lasers; Autocorrelation; Contacts; Laser mode locking; Laser theory; Optical harmonic generation; Optical pulse generation; Optical pulses; Pump lasers; Quantum well lasers; Space vector pulse width modulation;
Conference_Titel :
Lasers and Electro-Optics Society Annual Meeting, 1995. 8th Annual Meeting Conference Proceedings, Volume 1., IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-2450-1
DOI :
10.1109/LEOS.1995.484633
