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High-speed photodetection in a reverse biased GaAs/AlGaAs GRINSCH SQW laser structure

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8 Author(s)
Moss, D. ; Solid State Optoelectron. Consortium, Nat. Res. Council, Ottawa, Ont., Canada ; Landheer, D. ; Conn, D. ; Halliday, D.
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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.<>

Published in:

Photonics Technology Letters, IEEE  (Volume:4 ,  Issue: 6 )

Date of Publication:

June 1992

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