Publicado 12 números por año
ISSN Imprimir: 0040-2508
ISSN En Línea: 1943-6009
Indexed in
High-Performance Continuous-Wave GalnSbAs/GaSb Type-II Lasers
SINOPSIS
The findings of the studies into narrow-stripe GalnSbAs/GaSb type-II QW lasers are presented. The measurements of laser performances have been made in a continuous-wave mode at room temperature. The optical output power reached 20mW/facet. The interval quantum efficiency of the lasers was found to be 89% and the power efficiency amounted to 20%. The laser emitted in the fundamental spatial mode and operated on a single frequency over a wide range of currents and temperatures. The side longitudinal mode suppression was as great as 30dB. The emission wavelength could be continuously current-tuned within 0.7 to 1.2nm. The single longitudinal mode behavior was attributable to the photorefractive effect owing to DX centers in the Te-doped emitter layer acting as a saturable absorber.