Title :
Diode pumped operation of thulium doped fluoride fibre amplifier suitable for first window systems
Author :
Williams, John R. ; Lauder, R.D.T. ; Tropper, A.C. ; Hanna, D.C.
fDate :
9/15/1994 12:00:00 AM
Abstract :
A fully connectorised diode laser pumped first window amplifier has been constructed, for the first time, around a thulium doped fluoride fibre. For a 780/806 nm combination of pump and signal wavelengths, 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 are possible for a launched pump power of 31 mW, which corresponds to a conversion efficiency of around 650%
Keywords :
fibre lasers; optical pumping; thulium; 25 to 26 dB; 31 mW; 65 percent; 780 nm; 806 nm; connectorised diode laser pumped first window amplifier; conversion efficiency; gain efficiencies; launched pump power; output powers; small signal gain; thulium doped fluoride fibre;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19941087
