Abstract
A laser diode (LD) cladding-pumped cw Tm3+-doped silica fibre amplifier is reported that provides up to 3 W output with the slope efficiency nearly 30%. The gain fibre is 27.5/400 μm D-shaped Tm3+-doped silica double-cladding fibre, and the input signal sources is an LD-pumped Tm3+:YAP lasing at 1.99μm. The measured amplified spectrum only stretches a little relative to the input signal spectrum. This is the first report to the authors' knowledge of general experimental investigation of cladding-pumped Tm3+-doped fibre amplifier of high power cw at 1.99μm.
| Original language | English |
|---|---|
| Pages (from-to) | 1291-1292 |
| Number of pages | 2 |
| Journal | Chinese Physics Letters |
| Volume | 25 |
| Issue number | 4 |
| DOIs | |
| State | Published - 1 Apr 2008 |
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