Resonant periodic gain surface-emitting semiconductor lasers
A novel surface-emitting semiconductor laser structure with a vertical cavity, extremely short gain medium length, and enhanced gain at a specific design wavelength is described. The active region consists of a series of quantum wells spaced at one half the wavelength of a particular optical transition in the quantum wells. This spatial periodicity allows the antinodes of the standing wave optical field to coincide with the gain elements, enhancing the frequency selectivity, increasing the gain in the vertical direction by a factor of two compared to a uniform medium or a nonresonant multiple quantum well, and substantially reducing amplified spontaneous emission. Optically pumped lasing was achieved in a GaAs/AlGaAs structure grown by molecular beam epitaxy, with the shortest gain medium (310 nm) ever reported. Various other optoelectronic devices which depend on the interaction between an electromagnetic standing wave and a carrier population distribution can also benefit from this concept.
- Research Organization:
- New Mexico Univ., Albuquerque, NM (USA). Dept. of Physics and Astronomy; New Mexico Univ., Albuquerque, NM (USA). Dept. of Electrical and Computer Engineering; Sandia National Labs., Albuquerque, NM (USA)
- OSTI ID:
- 5774170
- Journal Information:
- IEEE J. Quant. Electron.; (United States), Journal Name: IEEE J. Quant. Electron.; (United States) Vol. 25:6; ISSN IEJQA
- Country of Publication:
- United States
- Language:
- English
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42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ALUMINIUM ARSENIDES
ALUMINIUM COMPOUNDS
AMPLIFICATION
ARSENIC COMPOUNDS
ARSENIDES
DESIGN
ELECTRONIC EQUIPMENT
EMISSION
ENERGY-LEVEL TRANSITIONS
EPITAXY
EQUIPMENT
FREQUENCY MODULATION
GAIN
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
LASER CAVITIES
LASERS
MODULATION
MOLECULAR BEAM EPITAXY
OPTICAL PROPERTIES
OPTICAL PUMPING
OPTICAL SYSTEMS
PHYSICAL PROPERTIES
PNICTIDES
PUMPING
QUANTUM ELECTRONICS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS
SOLID STATE LASERS
STIMULATED EMISSION
WAVELENGTHS