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Volume 4, Issue 4 (Suppl) J Laser Opt Photonics, an open access journal
ISSN: 2469-410X Optics 2017
November 15-17, 2017
November 15-17, 2017 | Las Vegas, USA
8th International Conference and Exhibition on
Lasers, Optics & Photonics
Optical parametric vortex lasers
Takashige Omatsu
Chiba University, Japan
Optical vortex carrys orbital angular momentum (OAM) and donut spatial profile owing to its helical wavefront and it has been
widely investigated in a various applications, such as advanced optical manipulations, chiral microfabrications, super resolution
microscopes and ultrahigh-speed optical telecommunications. The afore mentioned applications desire strongly wavelength and
OAM- versatility in the optical vortex sources. In general, conventional phase elements for the optical vortex generation, designed
for a specified lasing frequency, are ill-suited for tunable and high power laser sources. The direct generation of optical vortex modes
from a laser cavity is alternative to produce high power optical vortex modes with high quality. A nonlinear frequency extension of
optical vortex sources via second or third nonlinear process also provides us to achieve sufficient wavelength versatility in optical
vortex sources. In this presentation, we detail the direct generation of optical vortex modes from solid-state laser and fiber laser
systems. Also, we address optical parametric vortex lasers based on optical vortex pumped optical parametric laser oscillations in
combination with difference frequency generation, which enables the development of ultrabroadband tunable optical vortex laser
sources in the visible, near-infrared and mid-infrared regions. Further, we discuss the fractional vortex generation beam from an
optical vortex parametric oscillator based on topological charge conservation.
Biography
Takashige Omatsu has completed his PhD in the year 1992 from the University of Tokyo. He is working as professor in the Chiba University. He has published more than
130 papers in journals and has been serving as an Editorial Board Member of Optics Express and Photonics Research. He is also currently working as a Director at Large,
the Optical Society (OSA). He was elected as Japan Society of Applied Physics and OSA Fellow.
Takashige Omatsu, J Laser Opt Photonics 2017, 4:4 (Suppl)
DOI: 10.4172/2469-410X-C1-017