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Broadly tunable femtosecond pulses around 2.06 µm from a diode-pumped Tm3+-doped solid-state laser source

: Stevenson, N.K.; Brown, C.T.A.; Hopkins, J.M.; Dawson, M.D.; Lagatsky, A.A.

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Optics Express 27 (2019), Nr.8, S.11103-11111
ISSN: 1094-4087
Zeitschriftenaufsatz, Elektronische Publikation
Fraunhofer CAP ()

We report on a broadly tunable diode-pumped femtosecond Tm:LuScO3 laser source around 2.06 µm. Tuning was obtained through the use of a steeply diving birefringent filter, maintaining sub-600 fs pulses over a tuning range of 2019–2110 nm. The minimum pulse duration of 240 fs was recorded at a central wavelength of 2080 nm with an average output power of 93 mW. Higher output coupling of 2% resulted in a narrower tuning range of 2070–2102 nm with generated pulses as short as 435 fs and an average output power of 119 mW at 2090 nm.