Inter-/intra-pulse dual-wavelength-operated mid-infrared optical parametric oscillator.
Opt Lett
; 48(23): 6228-6231, 2023 Dec 01.
Article
en En
| MEDLINE
| ID: mdl-38039233
ABSTRACT
We demonstrate a pulsed mid-infrared (MIR) optical parametric oscillator (OPO) with both inter-pulse and intra-pulse dual-wavelength operation capability. A fiber master oscillator power amplifier incorporating an acousto-optic tunable filter (AOTF) was employed as the pump for the OPO. By finely adjusting the drive wave packets for the AOTF, dual-wavelength pump can be realized within each pulse or between two adjacent pulses. These special temporal-spectral behaviors of the pump can be transferred to MIR via an OPO. In the proof-of-principle experiments, two pump wavelengths at â¼1065 and â¼1076â
nm were generated and amplified to â¼31.2â
W with equivalent spectral intensities for both pulsation modes. At the highest pump power, total idler power of â¼3.5â
W was achieved at â¼3.45 and â¼3.55â
µm under both pulsation modes. To the best of our knowledge, this is the first demonstration of both inter-pulse and intra-pulse dual-wavelength MIR generation via an OPO with an identical configuration. It is believed that our design may provide a promising solution to many practical applications including differential absorption lidar and tunable terahertz wave generation.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
Opt Lett
Año:
2023
Tipo del documento:
Article