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Wide bandwidth Ho:YLF multi-pass amplifier pumped by Tm: fiber laser

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5 Author(s)
Coluccelli, N. ; Dipt. di Fis., Politec. di Milano, Vinci, Italy ; Galzerano, G. ; Di Lieto, A. ; Tonelli, M.
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We report on a Ho:YLF multipass amplifier resonantly pumped by a Tm:fiber laser and seeded by a low power Tm-Ho:YLF tunable laser, which generates a maximum output power of 3.5 W at 2064 nm and has a gain bandwidth of 22 nm. Remarkable features of YLF are the reduced thermal lensing and good thermo-mechanical behavior, which make it suitable for operation under strong pumping, and the low phonon energy.

Published in:

Lasers and Electro-Optics Europe (CLEO EUROPE/EQEC), 2011 Conference on and 12th European Quantum Electronics Conference

Date of Conference:

22-26 May 2011