Publication No: 443

Diode-pumped 1.36µm Nd-doped fibre laser

S.G.Grubb*, W.L.Barnes, E.R.Taylor, D.N.Payne

* Amoco Technology Co, PO Box 400, Naperville, IL 60566, USA
Optical Fibre Group, University of Southampton, UK

Abstract

Laser emission has beem observed at 1.363μm on the ⁴F_3/2 → ⁴I_13/2 transition from a diode-pumped Nd-doped phosphate glass single-mode fibre. Normally, this transition is strongly suppressed in an oxide glass host due to excited state absorption effects which reduce the efficiency of this transition. We observe both the lowest lasing threshold (5 mW) and the highest slope efficiency 10.8%) reported for a fibre laser in the 1.3μm spectral regon.

Electronics Letters (1990) Vol.26(2) pp.121-122

doi: 10.1049/el:19900083

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