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Tm:Ho co-doped single mode optical fibre laser pumped by a 1600 nm Er fibre laser |
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| Authors: | S.Y. Chen T.L. Yeo T. Sun R. Lade G. Foster-Turner |
| Affiliation: | a School of Engineering and Mathematical Sciences, City University, Northampton Square, London EC1V 0HB, United Kingdom b Kidde Ltd, Berkshire SL3 0HB, United Kingdom c Optek Systems, Abingdon OX14 1DY, United Kingdom |
| Abstract: | An all-fibre Tm:Ho laser system is reported, using a 1600 nm Er fibre pump laser and 0.3 m length of the fibre through a two-stage optimization of both the pump source and laser configuration to achieve a low threshold operation. As a result a low threshold power of 33 mW and a slope efficiency of 0.6% have been achieved, in laser operation at a wavelength of 1870 nm and a cross-comparison with 785 nm laser diode pumping has been made. |
| Keywords: | All fibre Tm:Ho fibre laser Er fibre laser Two-stage optimization |
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