Title :
Terahertz repetition rates from harmonic modelocked monolithic compound-cavity laser diodes
Author :
Yanson, D.A. ; Street, M.W. ; Avrutin, E.A. ; McDougall, S.D. ; Thayne, I.G. ; Marsh, J.H.
Author_Institution :
Dept. of Electron. & Electr. Eng., Glasgow Univ., UK
Abstract :
Novel compound-cavity laser diodes are modelocked at a harmonic of the fundamental round-trip frequency to achieve repetition rates of up to 2.1 THz. The devices are fabricated from GaAs-AlGaAs material at a wavelength of 860 nm and incorporate two gain sections with an etched slot reflector between them, and a saturable absorber section. Autocorrelation studies are used to investigate device behaviour for different reflector types and reflectivity. These lasers may find applications in terahertz imaging, medicine, ultrafast optical links, and atmospheric sensing
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; harmonics; high-speed optical techniques; integrated optics; laser cavity resonators; laser mode locking; semiconductor lasers; 2.1 THz; 860 nm; GaAs-AlGaAs; GaAs/AlGaAs material; autocorrelation studies; device behaviour; etched slot reflector; gain sections; harmonic modelocked laser diodes; monolithic compound-cavity laser diodes; reflectivity; saturable absorber section; terahertz repetition rates; Autocorrelation; Biomedical imaging; Diode lasers; Etching; Frequency; Laser applications; Optical fiber communication; Optical imaging; Optical materials; Reflectivity;
Conference_Titel :
High Performance Electron Devices for Microwave and Optoelectronic Applications, 2000 8th IEEE International Symposium on
Conference_Location :
Glasgow
Print_ISBN :
0-7803-6550-X
DOI :
10.1109/EDMO.2000.919027
