Wavelength agile holmium-doped fiber laser

Simakov, N., Daniel, J.M.O., Ward, J., Clarkson, W.A., Hemming, A. and Haub, J. (2016) Wavelength agile holmium-doped fiber laser. Proceedings of SPIE, 9728. (doi:10.1117/12.2210880).

Abstract

For the first time, an electronically-controlled, wavelength-agile tuneable holmium-doped fibre laser is presented. A narrow-band acousto-optic tuneable filter was characterized and used as the wavelength selective element to avoid any inertial effects associated with opto-mechanical tuning mechanisms. We demonstrate operation over a 90 nm wavelength range spanning 2040 – 2130 nm. The laser produced >150 mW over this entire range with a signal-to-noise ratio of >45 dB and line-width of ~0.16 nm. Switching times of ~35 µs and sweep rates of up to 9 nm/ms were also demonstrated.

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