Characterisation of a first window amplifier using a thulium doped fluoride fibre
Percival, R.M., Szebesta, D., Williams, J.R., Lauder, R.D.T., Tropper, A.C. and Hanna, D.C. (1994) Characterisation of a first window amplifier using a thulium doped fluoride fibre. In, Digonnet, Michel J.F. (ed.) Doped Fiber Devices and Systems. Bellingham, US, The International Society for Optical Engineering. (Proceedings of SPIE, 2289). (doi:10.1117/12.188704).
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A fully connectorized diode laser pumped first window amplifier has been constructed, for the first time, around a thulium doped fluoride fiber. For a 780/806 nm combination of pump and signal wavelengths intrinsic small signal gains of 25 - 26 dB and gain efficiencies of 2.4 dB/mW have been achieved. In addition output powers approaching +13 dBm from the doped fiber were possible for launched pump powers of 31 mW, which corresponds to a pump to signal conversion efficiency of around 64%. Minimum noise figures of 4 - 5 dB have been achieved with characteristics which mirror the output power performance. The 3 dB gain bandwidth for this transition has been measured at 9 - 10 nm for small signals, increasing to better than 15 nm under signal saturation conditions
|Item Type:||Book Section|
|Digital Object Identifier (DOI):||doi:10.1117/12.188704|
|Subjects:||Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
|Divisions:||University Structure - Pre August 2011 > Optoelectronics Research Centre
Faculty of Physical Sciences and Engineering > Physics and Astronomy
|Date Deposited:||11 Mar 2010|
|Last Modified:||28 Nov 2015 12:09|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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