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345-mW 1836-nm single-frequency DFB fiber laser MOPA

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3 Author(s)
N. Y. Voo ; Optoelectron. Res. Centre, Univ. of Southampton, UK ; J. K. Sahu ; M. Ibsen

We demonstrate an in-band-pumped continuous-wave single-frequency distributed-feedback (DFB) fiber laser emitting at a wavelength of 1836 nm with an output power of ∼5 mW. The laser is subsequently amplified to 345 mW using a master-oscillator power amplifier configuration. To the best of the authors' knowledge, this is the first report of a Tm-co-doped single-frequency DFB fiber laser that is in-band pumped at 1565 nm. The laser is confirmed to operate in a single mode, using a scanning Fabry-Pe´rot interferometer.

Published in:

IEEE Photonics Technology Letters  (Volume:17 ,  Issue: 12 )