2.3-µm Tm3+:YLF laser passively Q-switched with a Cr2+:ZnSe saturable absorber.
Opt Lett
; 42(9): 1656-1659, 2017 May 01.
Article
in En
| MEDLINE
| ID: mdl-28454128
ABSTRACT
We report, what is to our knowledge, the first passively Q-switched operation of a 2.3-µm Tm3+YLF laser by using a Cr2+ZnSe saturable absorber. In the experiments, a tunable Ti3+sapphire laser was used to end pump the Tm3+YLF gain medium inside an x cavity. A Cr2+ZnSe saturable absorber was also included in the cavity to initiate passive Q switching. At all pump power levels above lasing threshold, passively Q-switched operation of the Tm3+YLF laser could be obtained at 2309 nm with pulse durations and repetition frequencies in the ranges of 1.2-1.4 µs and 0.3-2.1 kHz, respectively. Analysis of power dependent repetition rate data further gave an estimated value of 3.1% for the round-trip saturable loss of the Cr2+ZnSe saturable absorber.
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MEDLINE
Language:
En
Journal:
Opt Lett
Year:
2017
Type:
Article