Title :
High-efficiency light-emission from novel GaAs deep-centers for high-speed 1.5 μm fiber-optics
Author_Institution :
Yale Univ., New Haven
Abstract :
We demonstrate the first LEDs at 1.3-1.5 μm using GaAs deep-centers having higher (90%) efficiencies and larger Einstein B-coefficients than bulk InGaAs. An observed absence of deep-center self-absorption (Franck-Condon shift) could make possible near-zero threshold lasers.
Keywords :
gallium arsenide; high-speed optical techniques; laser beams; light emitting diodes; optical fibres; semiconductor lasers; Einstein B-coefficients; Franck-Condon shift; GaAs; deep-center self-absorption; high-efficiency light-emission; high-speed fiber-optics; near-zero threshold lasers; wavelength 1.3 μm to 1.5 μm; Absorption; Fiber lasers; Gallium arsenide; III-V semiconductor materials; Indium gallium arsenide; Laser transitions; Luminescence; Material properties; Self-assembly; Semiconductor lasers;
Conference_Titel :
Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-0930-3
Electronic_ISBN :
978-1-4244-0931-0
DOI :
10.1109/CLEOE-IQEC.2007.4386235
