Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • 2013 Conference on Lasers and Electro-Optics - International Quantum Electronics Conference
  • (Optica Publishing Group, 2013),
  • paper CA_10_3

Tunable milli-joule-level 2μm fractional vortex optical parametric amplifier

Not Accessible

Your library or personal account may give you access

Abstract

Fractional vortex lasers with a fractional topological charge, l, exhibiting a unique fractional radial opening, have been attractive for the optical manipulating of microscopic particles and super-resolution spectroscopy based on stimulated emission depletion. They have also recieved much attention in fundamental physics, including an analogy concerning the quantum flux in the Aharonov–Bohm effect. Such applications of the fractional vortex lasers frequently require wavelength diversity. In particular, tunable fractional vortex lasers in a mid-infrared region, including the eigen frequencies of many molecules originating by the vibration modes, will potentially be attractive for manipulating molecules and molecular spectroscopy with high spatial resolution. Second-order nonlinear frequnecy conversion is a promising method to extend the wavelength range of laser sources. However, the conservation of topological charge, l, in an optical parametric down-conversion process causes a question, i.e., how does the orbital angular momentum of the pump beam divide between the signal and idler outputs? To date, we have demonstrated 2μm fractional vortex output with a topological charge l=0.5 from a 1μm vortex pumped optical parametric oscillator (2μm fractional vortex OPO) formed by a plane-parallel cavity configuration and a nonlinear crystal KTP [1]. (Such the fractional optical vortex operation is never permitted in a conventional stable laser cavity [2].) However, the pulse energy (<0.5mJ) of the fractional vortex output is limited by severe diffraction loss in the plane-parallel cavity configuration. Also, the lasing wavelength of the fractional vortex output was fixed at 2.128μm.

© 2013 IEEE

PDF Article
More Like This
Milli-joule level 2m vortex pulses from an optical vortex pumped optical parametric oscillator

Taximaiti Yusufu, Yu Tokizane, Sachio Miyagi, Masaki Yamada, Katsuhiko Miyamoto, and Takashige Omatsu
CF2B.4 CLEO: Science and Innovations (CLEO:S&I) 2012

Helicity Control of a 2-μm Optical Vortex Output From a Vortex-Pumped Optical Parametric Oscillator

Taximaiti Yusufu, Yu Tokizane, Masaki Yamada, Katsuhiko Miyamoto, and Takashige Omatsu
MA2_4 Conference on Lasers and Electro-Optics/Pacific Rim (CLEO/PR) 2013

Highly-efficient milli-joule level 3.5 μm optical parametric oscillator based on MgO:PPLN

Niu Sujian, Palidan Aierken, Wan Ying, and Taximaiti Yusufu
Su2A.176 Asia Communications and Photonics Conference (ACP) 2017

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved