Two-photon photodetector in a multiquantum well GaAs laser structure at 1.55 microm

Autor:	Anthony J. SpringThorpe, D. N. Christodoulides, L. Halloran, D. Duchesne, Roberto Morandotti, Luca Razzari, David J. Moss
Rok vydání:	2009
Předmět:	Physics::Optics Photodetector Sensitivity and Specificity law.invention Photometry Optics law Photocurrent Physics Photons Condensed Matter::Other business.industry Autocorrelation Reproducibility of Results Equipment Design Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Laser Atomic and Molecular Physics and Optics Photodiode Equipment Failure Analysis Attenuation coefficient Optoelectronics Computer-Aided Design Quantum Theory Quantum efficiency Lasers Semiconductor business Sensitivity (electronics)
Zdroj:	Optics express. 17(7)
ISSN:	1094-4087
Popis:	We report two-photon photocurrent in a GaAs/AlGaAs multiple quantum well laser at 1.55 microm. Using 1ps pulses, a purely quadratic photocurrent is observed. We measure the device efficiency, sensitivity, as well as the two-photon absorption coefficient. The results show that the device has potential for signal processing, autocorrelation and possibly two-photon source applications at sub-Watt power levels.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6a929e5e8c36dd768148d4e15af9bc4 https://pubmed.ncbi.nlm.nih.gov/19333295 Zobrazit plný text záznamu