550 MHz carbon nanotube mode-locked femtosecond Cr:YAG laser

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We demonstrate a femtosecond Cr:YAG laser mode-locked by a carbon nanotube saturable absorber mirror (CNT-SAM) at a repetition rate of 550 MHz. By employing the CNT-SAM, which exhibits a modulation depth of 0.51% and a saturation fluence of 28 mu J/cm(2) at 1.5 mu m, we achieved a compact bulk Cr:YAG laser with self-starting mode-locked operation near 1.5 mu m, delivering an average output power of up to 147 mW and a pulse duration of 110 fs. To our knowledge, this system provides the highest repetition rate among reported CNT-SAM mode-locked Cr:YAG lasers and the shortest pulse duration among saturable absorber mode-locked Cr:YAG lasers with repetition rates above 500 MHz.
Publisher
CHINESE LASER PRESS
Issue Date
2018-06
Language
English
Article Type
Article
Keywords

SATURABLE ABSORBER MIRROR; 1.2-GHZ REPETITION RATE; SOLITON FIBER LASER; CR4+-YAG LASER; CR4+YAG LASER; LOCKING; PULSES

Citation

CHINESE OPTICS LETTERS, v.16, no.6, pp.061404

ISSN
1671-7694
DOI
10.3788/COL201816.061404
URI
http://hdl.handle.net/10203/244035
Appears in Collection
PH-Journal Papers(저널논문)
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