Wide acceptance bandwidth difference frequency generation in quasi-phase-matched LiNbO3

13 November 1995

journal article
research article
Published by AIP Publishing in Applied Physics Letters

Vol. 67 (20) , 2910-2912
https://doi.org/10.1063/1.114839

Abstract

Difference frequency generation in quasi‐phase‐matched LiNbO₃ is carried out using a Nd:YAG laser and a high power semiconductor laser. Operation at quasi‐phase‐matching degeneracy point results in an ultrawide 0.5 μm acceptance bandwidth. Crystal‐rotation‐free wavelength tuning of 4.0–4.5 μm, with 0.2 mW output power at 4.5 μm is achieved. Separately, a tuning range 3.0–5.5 μm is demonstrated with sample rotation and a Ti:Al₂O₃ laser.

Keywords

BANDWIDTH
INFRARED RADIATION
LIGHT SOURCES
LITHIUM NIOBATES
NONLINEAR OPTICS
OPTICAL MIXING
PHASE−MATCHING
TUNING