Tapered waveguide InGaAs/InGaAsP multiple-quantum-well lasers

Journal Article · Thu Feb 01 00:00:00 EST 1990 · IEEE Photonics Technology Letters (Institute of Electrical and Electronics Engineers); (USA)

DOI:https://doi.org/10.1109/68.47056· OSTI ID:6923361

Koch, T L; Koren, U; Eisentein, G; Young, M G; Oron, M; Giles, C R; Miller, B I ^[1]

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1. AT and T Bell Labs., Holmdel, NJ (USA)

The authors propose and demonstrate the application of ultra-thin etch-stop fabrication techniques to adiabatically expand the vertical optical mode size in 1.5 {mu}m InGaAs/InGaAsP MQW lasers using a tapered-core passive intracavity waveguide structure. They achieve 30% differential quantum efficiency out the tapered facet, far-field FWHM of {approximately} 12{degrees}, and a butt-coupling efficiency into a cleaved fiber of {minus} 4.2 dB, with {minus} 1 dB alignment tolerances of {approximately} {plus minus} 3 {mu}M.

• OSTI ID: 6923361
• Journal Information: IEEE Photonics Technology Letters (Institute of Electrical and Electronics Engineers); (USA), Vol. 2:2; ISSN 1041-1135
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
47 OTHER INSTRUMENTATION
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
SEMICONDUCTOR LASERS
QUANTUM EFFICIENCY
COUPLING
ETCHING
FABRICATION
GALLIUM ARSENIDES
GALLIUM PHOSPHIDES
INDIUM ARSENIDES
INDIUM PHOSPHIDES
LASER CAVITIES
MODE SELECTION
OPTICAL SYSTEMS
WAVEGUIDES
ARSENIC COMPOUNDS
ARSENIDES
EFFICIENCY
GALLIUM COMPOUNDS
INDIUM COMPOUNDS
LASERS
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PNICTIDES
SEMICONDUCTOR DEVICES
SOLID STATE LASERS
SURFACE FINISHING
426002* - Engineering- Lasers & Masers- (1990-)
656003 - Condensed Matter Physics- Interactions between Beams & Condensed Matter- (1987-)
440600 - Optical Instrumentation- (1990-)
657002 - Theoretical & Mathematical Physics- Classical & Quantum Mechanics