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Strathprints makes available scholarly Open Access content by the Fraser of Allander Institute (FAI), a leading independent economic research unit focused on the Scottish economy and based within the Department of Economics. The FAI focuses on research exploring economics and its role within sustainable growth policy, fiscal analysis, energy and climate change, labour market trends, inclusive growth and wellbeing.

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Femtosecond pulse generation around 1500nm using a GaInNAsSb SESAM

Metzger, N.K. and Leburn, C.G. and Lagatsky, A.A. and Brown, C.T.A. and Calvez, S. and Burns, D. and Sun, H.D. and Dawson, M.D. and Harmand, J.C. and Sibbett, W. (2008) Femtosecond pulse generation around 1500nm using a GaInNAsSb SESAM. Optics Express, 16 (23). pp. 18739-18744. ISSN 1094-4087

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Abstract

The operation of a femtosecond Cr4+:YAG laser that incorporates a novel GaInNAsSb semiconductor saturable Bragg reflector is reported. In the mode-locked regime 230fs pulses centred at 1528nm were generated at an average output power of 280mW. The SESAM exhibited a low saturation fluence of 10μJ/cm2 and a short recovery time of 12ps.