8.7-W average power, in-band pumped femtosecond Ho:CALGO laser at 2.1 µm.
Opt Express
; 30(23): 41075-41083, 2022 Nov 07.
Article
em En
| MEDLINE
| ID: mdl-36366592
ABSTRACT
We report on an in-band pumped SESAM mode-locked HoCALGO bulk laser with a record-high average power of 8.7 W and an optical-to-optical efficiency of 38.2% at a central wavelength of 2.1 µm. At this power level, the bulk laser generates pulses with a duration of 369 fs at an 84.4-MHz repetition rate, corresponding to a pulse energy of 103 nJ and a peak power of 246 kW. To the best of our knowledge, this is the highest average power and pulse energy directly generated from a mode-locked bulk laser in the 2-3 µm wavelength region. Our current results indicate that HoCALGO is a competitive candidate for average power scaling of 2-µm femtosecond lasers.
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MEDLINE
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En
Ano de publicação:
2022
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Article