Thulium doped LuAG ceramics for passively mode locked lasers

Wang, Yicheng; Lan, Ruijin; Matos, Xavier; Li, Jiang; Li, Chaoyu; Suomalainen, Soile; Härkönen, Antti; Guina, Mircea; Petrov, Valentin; Griebner, Uwe (2017-03-17)
 
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Wang, Yicheng
Lan, Ruijin
Matos, Xavier
Li, Jiang
Li, Chaoyu
Suomalainen, Soile
Härkönen, Antti
Guina, Mircea
Petrov, Valentin
Griebner, Uwe
17.03.2017

Optics Express
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doi:10.1364/OE.25.007084
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https://urn.fi/URN:NBN:fi:tty-201712152385

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Peer reviewed
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Passive mode-locking of a thulium doped Lu3Al5O12 ceramic laser is demonstrated at 2022 nm. By applying different near surface GaSb-based saturable absorber mirrors, stable self-starting mode-locked operation with pulse durations between 2 and 4 picoseconds was achieved at a repetition rate of 92 MHz. The SESAM mode-locked Tm:LuAG ceramic laser exhibits an excellent stability with a fundamental beat note extinction ratio of 80 dB above the noise level. Furthermore, spectroscopic properties of Tm:LuAG ceramics at room temperature are presented.
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