9 November 2000 Engineering the redistribution of power in an erbium-doped superfluorescent fibre source
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Proceedings Volume 4185, Fourteenth International Conference on Optical Fiber Sensors; 41854B (2000) https://doi.org/10.1117/12.2302298
Event: Fourteenth International Conference on Optical Fiber Sensors, 2000, Venice, Italy
Abstract
We demonstrate a novel method for equalising the spectra of erbium doped superfluorescent fibre sources in the double-pass forward configuration. The equalising technique uses novel single-mode fibre to planar waveguide filters in a double-pass forward superfluorescent source to smooth the output spectrum. The insertion loss of the filter device used in this paper is <0.9dB but insertion losses of 0.2dB are typical. The unfiattened double-pass forward superfluorescent source with 108.5mW pump power has an output power of <30mW, 44.2% of the quantum efficiency and a 3dB linewidth of 5.43nm. The equalised DPF SFS with 108.5mW pump power has an output <30mW, 44.85% of the quantum efficiency, a 3dB linewidth of 31.26mn with a small ~0.936dB ripple. The overall gain flattened spectral density is increased from 468.6μW/nm to 887.8?W/um in the lSSOnm region.
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Duncan McMillan, Duncan McMillan, } "Engineering the redistribution of power in an erbium-doped superfluorescent fibre source", Proc. SPIE 4185, Fourteenth International Conference on Optical Fiber Sensors, 41854B (9 November 2000); doi: 10.1117/12.2302298; https://doi.org/10.1117/12.2302298
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