A 970 nm strained-layer InGaAs/GaAlAs quantum well laser for pumping an erbium-doped optical fiber amplifier

A 970 nm strained-layer InGaAs/GaAlAs quantum well laser for pumping an erbium-doped optical fiber amplifier

We report the performance of a 970 nm strained-layer InGaAs/GaAlAs quantum well laser and its application for pumping Er-doped optical fiber amplifiers. The laser was grown by molecular beam epitaxy and has three In0.2Ga0.8As/GaAs quantum wells. For a 5-μm-wide and 400-μm-long ridge-waveguide laser,...

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Veröffentlicht in:Applied physics letters 1990-01, Vol.56 (3), p.221-223
Hauptverfasser: WU, M. C, OLSSON, N. A, SIVCO, D, CHO, A. Y
Format: Artikel
Sprache:eng
Schlagworte:
ALUMINIUM ARSENIDES
ALUMINIUM COMPOUNDS
AMPLIFIERS
ANTIREFLECTION COATINGS
ARSENIC COMPOUNDS
ARSENIDES
COATINGS
CRYSTAL DOPING
CURRENTS
DATA
EFFICIENCY
ELECTRIC CURRENTS
ELECTRONIC EQUIPMENT
ELEMENTS
ENGINEERING
EPITAXY
ERBIUM
Exact sciences and technology
EXPERIMENTAL DATA
FIBER OPTICS
FIBERS
Fundamental areas of phenomenology (including applications)
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
INDIUM ARSENIDES
INDIUM COMPOUNDS
INFORMATION
LASERS
METALS
MOLECULAR BEAM EPITAXY
NUMERICAL DATA
OPTICAL FIBERS
OPTICAL PUMPING
Optics
Physics
PNICTIDES
POWER RANGE MILLI W
PUMPING
QUANTUM EFFICIENCY
RARE EARTHS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS
Semiconductor lasers
laser diodes
SOLID STATE LASERS 426002 > Engineering-- Lasers & Masers-- (1990-)
THRESHOLD CURRENT
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Zusammenfassung:We report the performance of a 970 nm strained-layer InGaAs/GaAlAs quantum well laser and its application for pumping Er-doped optical fiber amplifiers. The laser was grown by molecular beam epitaxy and has three In0.2Ga0.8As/GaAs quantum wells. For a 5-μm-wide and 400-μm-long ridge-waveguide laser, a cw threshold current of 20 mA and an external quantum efficiency of 0.28 mW/mA per facet were obtained. Maximum output power exceeds 32 mW/facet. With antireflection coating, even higher external quantum efficiency (0.40 mW/mA) was achieved, and more than 20 mW of power was coupled into a single mode fiber. Preliminary experiments of pumping the Er-doped fiber amplifier gave 15 dB of gain at 1.555 μm for a pump power of 14 mW into the Er fiber.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.102837