Fast saturable absorption and 10 GHz wavelength conversion in Al-quaternary multiple quantum wells

Green, R.P., Haji, M., Hou, L. , Mezosi, G., Dylewicz, R. and Kelly, A.E. (2011) Fast saturable absorption and 10 GHz wavelength conversion in Al-quaternary multiple quantum wells. Optics Express, 19(10), pp. 9737-9743. (doi: 10.1364/OE.19.009737)

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Abstract

We measured the absorption recovery times in reverse biased AlInGaAs multiple quantum well material designed to emit at around 1.5 μm wavelength. Absorption recovery times as low as 2.5ps were found at −4V bias, with values below 5ps consistently found for biases above 3V. The short absorption recovery times obtained under reverse bias were confirmed by using cross-absorption modulation in the material to demonstrate wavelength conversion of a 10GHz pulse train, showing both up and down conversion of the incident pulses.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Mezosi, Mr Gabor and Dylewicz, Dr Rafal and Hou, Dr Lianping and Haji, Dr Mohsin and Kelly, Professor Anthony
Authors: Green, R.P., Haji, M., Hou, L., Mezosi, G., Dylewicz, R., and Kelly, A.E.
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Optics Express
Publisher:Optical Society of America
ISSN:1094-4087
ISSN (Online):1094-4087
Published Online:04 May 2011

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
453111High power, high frequency mode-locked semiconductor lasersAnn BryceEngineering & Physical Sciences Research Council (EPSRC)EP/E065112/1Electronic and Nanoscale Engineering