Title:
POLARIZATION-INSENSITIVE OPTICAL PARAMETRIC AMPLIFIER FOR RADIALLY POLARIZED LIGHT AND AMPLIFICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2022/104597
Kind Code:
A1
Abstract:
A polarization-insensitive optical parametric amplifier for radially polarized light, comprising: a laser module (1) and a nonlinear crystal (2) that satisfies type II phase matching or type II quasi-phase-matching, wherein the laser module (1) is used to generate two paths of laser light respectively being pump light (3) and arbitrarily polarized signal light (4), wavelengths of the pump light (3) and the signal light (4) are degenerate or nearly degenerate, and the nonlinear crystal (2) is provided on an outgoing light path of the laser module (1) so as to perform optical parametric amplification on the signal light (4) by using the pump light (3). The optical parametric amplifier is insensitive to polarization of the signal light (4), that is, regardless of what polarization the signal light (4) is subjected to, the power of signal light (5) obtained after being amplified by the nonlinear crystal (2) by means of the pump light (3) is only related to the power of the signal light (4) before amplification and is not related to the polarization of the signal light (4) before amplification; moreover, the optical parametric amplifier can be used to perform parametric amplification on a vector beam such as radially polarized light, so as to obtain radially polarized ultrashort pulse laser light having high peak power.
Inventors:
ZHONG HAIZHE (CN)
LIANG CHENGCHUAN (CN)
DAI SHENGYING (CN)
HUANG JIEFENG (CN)
HU SAISAI (CN)
LIANG CHENGCHUAN (CN)
DAI SHENGYING (CN)
HUANG JIEFENG (CN)
HU SAISAI (CN)
Application Number:
PCT/CN2020/129782
Publication Date:
May 27, 2022
Filing Date:
November 18, 2020
Export Citation:
Assignee:
UNIV SHENZHEN (CN)
International Classes:
H01S3/08
Foreign References:
| CN102768451A | 2012-11-07 | |||
| CN101101428A | 2008-01-09 | |||
| CN107733530A | 2018-02-23 | |||
| CN110112644A | 2019-08-09 | |||
| CN110895377A | 2020-03-20 | |||
| US20080165412A1 | 2008-07-10 |
Attorney, Agent or Firm:
HENSEN INTELLECTUAL PROPERTY FIRM (CN)
Download PDF: