Optical vortex pumped mid-infrared optical parametric oscillator

• DOI: 10.1364/oe.19.012220
• Publication Date: 2011-06-08T18:47:37Z
• Authors: Katsuhiko Miyamoto; Sachio Miyagi; Masaki Yamada; Kenji Furuki; Nobuyuki Aoki; Masahito Okida; Takashige Omatsu
• Keywords: Optical vortex; Optical parametric amplifier; Parametric oscillator

The first demonstration of a mid-infrared optical parametric oscillator pumped by 1-μm vortex pulses is presented. A 0.5-mJ 2-μm fractional pulse having half-integer topological charge generated. Using this system, 0.24-mJ with 1 can be created. charges the are observed an interferometric technique in combination second-harmonic frequency conversion.