Title :
Sub-THz passive harmonic modelocking effects in external-reflector compound cavity laser diodes
Author :
Street, M.W. ; Avrutin, E.A. ; Yanson, D.A. ; McDougall, S.D. ; Thayne, L.G. ; Marsh, J.H. ; Roberts, J.S.
Author_Institution :
Dept. of Electron., Glasgow Univ., UK
Abstract :
Passive harmonic mode-locked laser diodes are capable of generating pulses at repetition rates in excess of 1.5 THz. Harmonic mode-locking techniques fall into two main categories: colliding pulse mode-locking (CPM) and compound cavity mode-locking (CCM). We report simulations and experimental results using a hybrid approach which combines the CPM and CCM techniques in a multi-section laser diode with an external reflector. The experiments were performed with a 650 μm-long 3-section GaAs/AlGaAs quantum well ridge waveguide laser diode with a 30 μm-long saturable absorber section located in the middle of the cavity
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; laser cavity resonators; laser mirrors; laser mode locking; optical saturable absorption; quantum well lasers; waveguide lasers; 3-section GaAs/AlGaAs quantum well ridge waveguide laser diode; 30 mum; 650 mum; GaAs-AlGaAs; cavity; colliding pulse mode-locking; compound cavity mode-locking; external reflector; external-reflector compound cavity laser diodes; hybrid approach; multi-section laser diode; repetition rates; saturable absorber section; sub-THz passive harmonic modelocking effects; Diode lasers; Electrons; Frequency; Laser mode locking; Numerical simulation; Optical harmonic generation; Optical pulse generation; Optical pumping; Optical sensors; Optical waveguides;
Conference_Titel :
LEOS '99. IEEE Lasers and Electro-Optics Society 1999 12th Annual Meeting
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-5634-9
DOI :
10.1109/LEOS.1999.811921
