Open AccessOptical vortex pumped mid-infrared optical parametric oscillator
Author(s) -
Katsuhiko Miyamoto,
Sachio Miyagi,
Masaki Yamada,
Kenji Furuki,
Nobuyuki Aoki,
Masahito Okida,
Takashige Omatsu
Publication year - 2011
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.012220
Subject(s) - topological quantum number , optical parametric oscillator , optical vortex , vortex , optics , physics , infrared , optical parametric amplifier , parametric oscillator , laser , optical amplifier , quantum mechanics , thermodynamics
The first demonstration of a mid-infrared optical parametric oscillator pumped by 1-μm optical vortex pulses is presented. A 0.5-mJ 2-μm fractional vortex pulse having half-integer topological charge is generated. Using this system, 0.24-mJ vortex pulses with a topological charge of 1 can be created. The topological charges of the mid-infrared vortex pulses are observed by an interferometric technique in combination with second-harmonic frequency conversion.