High-pulse-energy mid-infrared fractional-image-rotation-enhancement ZnGePsub2/suboptical parametric oscillator
| Autor: | Helge Fonnum, Espen Lippert, Marc Eichhorn, Magnus W. Haakestad, Martin Schellhorn |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Physics
Image rotation business.industry Mid infrared 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics 010309 optics Optics 0103 physical sciences Optical parametric oscillator Optoelectronics Fresnel number 0210 nano-technology Pulse energy business Phase matching |
| Zdroj: | Optics letters. 41(11) |
| ISSN: | 1539-4794 |
| Popis: | A high-energy mid-infrared ZnGePsub2/sub(ZGP) optical parametric oscillator (OPO) based on the nonplanar fractional-image-rotation enhancement resonator pumped by a 2.05 μm Hosup3+/sup:YLF laser is presented. Up to 120 mJ pulse energy in a rotationally symmetric beam is generated in the 3-5 μm wavelength range at 1 Hz repetition rate. Slope efficiencies of up to 78% are achieved with respect to the pump pulse energy incident onto the ZGP crystal. The OPO pulses have a duration close to 15 ns, corresponding to a maximum peak power of 8 MW. A measurement of Msup2/supdependence on pump beam diameter is presented. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|