Development of thulium-doped fibre amplifiers for the 2μm waveband

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Development of thulium-doped fibre amplifiers for the 2μm waveband

Russell, Eoin; Kavanagh, Niamh; Shortiss, Kevin; Gunning, Fatima C. Garcia
Date: 2018-05-17
Copyright: © 2018, Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only
Related: https://spie.org/conferences-and-exhibitions/photonics-europe
Citation: Russell, E., Kavanagh, N., Shortiss, K. and Gunning, F. C. G. (2018) ‘Development of thulium-doped fibre amplifiers for the 2μm waveband’, SPIE Proceedings, 10683, Fiber Lasers and Glass Photonics: Materials through Applications, 106832Q (17 May 2018). doi: 10.1117/12.2306462

Abstract:

In this paper we show the analysis of Thulium Doped Fibre Amplifier(TDFA) gain dependence on pump laser wavelength and thulium doped fibre length. Thulium doped fibres of lengths varying from 0.5m to 3m are pumped with 785nm and 1550nm lasers in single and dual pumping schemes. Small signal gain up to 16dB was achieved at 2μm for a low pump power of 150mW. A potential wide amplifications bandwidth ranging from 1680nm to 2025nm is observed in the Amplified Spontaneous Emission(ASE) spectrum.

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