15-µJ picosecond hollow-core-fiber-feedback optical parametric oscillator.
Opt Express
; 31(14): 23419-23429, 2023 Jul 03.
Article
em En
| MEDLINE
| ID: mdl-37475426
ABSTRACT
We report a high-energy, picosecond, mid-infrared (MIR) optical parametric oscillator (OPO), in which a length of hollow-core-fiber (HCF) is employed to enable operation at 1-MHz repetition rate in a compact cavity format. The OPO is synchronously pumped by an ytterbium-doped-fiber (YDF) master-oscillator-power-amplifier (MOPA) system, seeded by a 1040-nm gain-switched laser diode (GSLD). Using periodically poled lithium niobate (PPLN) as the nonlinear crystal, the OPO generates signal and idler beams with tunable wavelengths in the range of 1329-1641â
nm and 2841-4790â
nm, respectively. The OPO provides 137-ps pulses with a maximum signal energy of 10.05 µJ at 1600â
nm and a maximum idler energy of 5.13 µJ at 2967â
nm. This, to the best of our knowledge, represents the highest energy MIR pulses, as well as the highest total converted pulse energy (15.18 µJ), ever achieved from a fiber laser pumped picosecond OPO.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Opt Express
Assunto da revista:
OFTALMOLOGIA
Ano de publicação:
2023
Tipo de documento:
Article