High-beam-quality operation of a 2 µm passively Q-switched solid-state laser based on a boron nitride saturable absorber.
Appl Opt
; 58(10): 2546-2550, 2019 Apr 01.
Article
em En
| MEDLINE
| ID: mdl-31045049
ABSTRACT
Boron nitride (BN) nanosheets were used as the material sources which were coated on a calcium fluoride mirror to achieve a saturable absorber (SA). A passively Q-switched solid-state laser at 2000.5 nm was demonstrated with a Tm,HoYAlO3 (Tm,HoYAP) crystal and a SA based on BN. An average output power of 650 mW was obtained with a minimum pulse width of 6.3 µs at the pulsed repetition frequency of 41.7 kHz, corresponding to a per pulse energy of 13 µJ. The beam quality factor was measured to be Mx2=1.06 and My2=1.07 at the maximum output power.
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01-internacional
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MEDLINE
Idioma:
En
Ano de publicação:
2019
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Article