High-speed photodetection in a reverse biased GaAs/AlGaAs GRINSCH SQW laser structure
- 1 June 1992
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 4 (6), 609-611
- https://doi.org/10.1109/68.141984
Abstract
The authors report extremely efficient ( approximately 100% internal quantum efficiency) and high-speed ( approximately 25-pS FWHM) photodetection in a reverse-biased GaAs/AlGaAs ridge waveguide single-quantum-well (SQW) graded-index separate confinement heterostructure (GRINSCH) laser structure near lambda =830 nm. The impulse response is limited by device parasitics to 25 pS at large reverse bias voltages, and by photogenerated electron escape closer to flatband conditions.Keywords
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