Two-channel, dual-beam-mode, wavelength-tunable femtosecond optical parametric oscillator

authored by

Jintao Fan, Jun Zhao, Liping Shi, Na Xiao, Minglie Hu

Abstract

Optical vortices, which carry orbital angular momentum, offer special capabilities in a host of applications. A single-laser source with dual-beam-mode output may open up new research fields of nonlinear optics and quantum optics. We demonstrate a dual-channel scheme to generate femtosecond, dual-wavelength, and dual-beam-mode tunable signals in the near infrared wavelength range. Dual-wavelength operation is derived by stimulating two adjacent periods of a periodically poled lithium niobate crystal. Pumped by an Yb-doped fiber laser with a Gaussian (lp = 0) beam, two tunable signal emissions with different beam modes are observed simultaneously. Although one of the emissions can be tuned from 1520 to 1613 nm with the Gaussian (ls = 0) beam, the other is capable of producing a vortex spatial profile with different vortex orders (ls = 0 to 2) tunable from 1490 to 1549 nm. The proposed system provides unprecedented freedom and will be an exciting platform for super-resolution imaging, nonlinear optics, multidimensional quantum entanglement, etc.

Organisation(s)

PhoenixD: Photonics, Optics, and Engineering - Innovation Across Disciplines
QUEST-Leibniz Research School

External Organisation(s)

Tianjin University

Type

Article

Journal

Advanced Photonics

Volume

2

Publication date

06.07.2020

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials, Atomic and Molecular Physics, and Optics, Biomedical Engineering

Electronic version(s)

https://doi.org/10.1117/1.AP.2.4.045001 (Access: Open)