Growth and non-critical phase-matching frequency conversion properties of LaxY1−xCOB crystals

CrystEngComm ◽  
2016 ◽  
Vol 18 (33) ◽  
pp. 6205-6212 ◽  
Author(s):  
Hongwei Qi ◽  
Fang Wang ◽  
Xiangxu Chai ◽  
Zhengping Wang ◽  
Fapeng Yu ◽  
...  
Keyword(s):  
Frequency Conversion ◽  
Phase Matching ◽  
Critical Phase

scholarly journals Widely Tunable Angular Non-Critical Phase-Matching Wavelengths from 0.72 to 1.42 μm Based on RE1xRE21−xCOB Mixed Crystals

Crystals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 744
Author(s):  
Ranran Li ◽  
Hongwei Qi ◽  
Yanqing Liu ◽  
Fapeng Yu ◽  
Pingzhang Yu ◽  
...  
Keyword(s):  
Rare Earth ◽  
Frequency Conversion ◽  
Second Harmonic ◽  
Theoretical Calculations ◽  
Mixed Crystals ◽  
Phase Matching ◽  
Rare Earth Ion ◽  
Ti:Sapphire Lasers ◽  
High Efficient ◽  
Critical Phase

The angular non-critical phase-matching (A-NCPM) second-harmonic-generation (SHG) properties of RE1xRE21−xCOB (RE1, RE2 = Y, Gd, La, Tm, Sm, and Nd) type mixed crystals including NCPM wavelength and conversion efficiency were detailedly investigated. Theoretical calculations manifest that the A-NCPM SHG scope of these crystals is 0.72~1.42 µm, and in experiments, the A-NCPM SHG waveband of 0.72~1.25 µm has been realized, by changing the ratio of the rare-earth elements RE1 and RE2 in RE1xRE21−xCOB crystals. Comparing to the temperature-dependent A-NCPM SHG of 0.95~1.34 µm in LiB3O5 (LBO) crystal, the composition-dependent A-NCPM SHG of 0.72~0.95 µm in RE1xRE21−xCOB type crystals is unique and has special significance for the frequency conversion of Ti:Sapphire lasers. Relationships between the birefringence and radius of rare-earth ion RE3+ in RE1xRE21−xCOB mixed crystals were discussed. Aiming for the A-NCPM SHG of 0.72~1.42 µm, we supply a clear, completed, and optimized solution on how to select the compositions of RE1xRE21−xCOB mixed crystals. Under focusing light beam conditions, high efficient A-NCPM SHG for both OPO and Ti:sapphire lasers were realized experimentally by using long Y- and Z-cut RE1xRE21−xCOB crystal samples.

scholarly journals Angular non-critical phase-matching second-harmonic-generation characteristics of RECOB (RE = Tm, Y, Gd, Sm, Nd and La) crystals

2017 ◽  
Vol 25 (10) ◽  
pp. 11867 ◽  
Author(s):  
Yanqing Liu ◽  
Zhengping Wang ◽  
Fapeng Yu ◽  
Hongwei Qi ◽  
Xiuqin Yang ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Phase Matching ◽  
Critical Phase

Quasi phase matching through periodic step structure: modeling of frequency conversion in consideration of heat influence

2012 ◽  
Author(s):  
Takafumi Ohfuchi ◽  
Nobuyuki Hirano ◽  
Hiroya Matsukawa ◽  
Koichiro Nakayama ◽  
Hiroshi Kumagai ◽  
...  
Keyword(s):  
Frequency Conversion ◽  
Phase Matching ◽  
Structure Modeling ◽  
Step Structure ◽  
Quasi Phase Matching

High efficiency Nd:YVO4/LBO critical phase matching green laser

2013 ◽  
Vol 25 (11) ◽  
pp. 2831-2835
Author(s):  
张学辉 Zhang Xuehui ◽  
姜梦华 Jiang Menghua ◽  
刘斌 Liu Bin ◽  
惠勇凌 Hui Yongling ◽  
雷訇 Lei Hong ◽  
...  
Keyword(s):  
High Efficiency ◽  
Green Laser ◽  
Phase Matching ◽  
Critical Phase

High efficiency angular non-critical phase matching for Ti:sapphire laser realized on LaCa4O(BO3)3single crystals

2014 ◽  
Vol 11 (9) ◽  
pp. 095403 ◽  
Author(s):  
Y Q Liu ◽  
F P Yu ◽  
H W Qi ◽  
S Han ◽  
F Zhang ◽  
...  
Keyword(s):  
High Efficiency ◽  
Phase Matching ◽  
Ti:Sapphire Laser ◽  
Critical Phase

Cathodoluminescence Study of Orientation Patterned GaAs Crystals for Nonlinear Optical Frequency Conversion by Quasi-Phase-Matching

2008 ◽  
Vol 1108 ◽  
Author(s):  
Hector Angulo ◽  
Manuel Avella ◽  
Oscar Martínez ◽  
Juan Jimenez ◽  
Candace Lynch ◽  
...  
Keyword(s):  
Frequency Conversion ◽  
Domain Walls ◽  
Optical Loss ◽  
Hydride Vapor Phase Epitaxy ◽  
Phase Matching ◽  
Light Sources ◽  
Optical Frequency Conversion ◽  
Operating Modes ◽  
Quasi Phase Matching ◽  
Cathodoluminescence Study

AbstractOrientation patterned (OP)-GaAs crystals show promise for use in tunable coherent light sources in the infrared (IR) and terahertz (THz). These structures consist of an alternating array of [001]/[00-1] oriented domains grown by hydride vapor phase epitaxy (HVPE). Material characteristics concerning the propagation losses, the crystal dimensions, and the grating size must be taken into account to implement optical devices for specific wavelength ranges and operating modes (CW or pulsed). The analysis of the main factors contributing to optical loss in the OP crystals is a crucial step toward their use in many promising applications. We present a cathodoluminescence study, where the main defects and their distribution over the OP-GaAs crystals are revealed, with special emphasis paid to the properties of the domain walls.

Temperature phase-matching tuning of ZnGeP2 crystal for CO laser frequency conversion

2019 ◽  
Author(s):  
A.A. Ionin ◽  
I.O. Kinyaevskiy ◽  
Yu.M. Klimachev ◽  
A.Yu. Kozlov ◽  
A.M. Sagitova ◽  
...  
Keyword(s):  
Frequency Conversion ◽  
Laser Frequency ◽  
Phase Matching ◽  
Temperature Phase ◽  
Co Laser

Refractive Index Measurements of Barium Titanate From .4 to 5.0 Microns and Implications for Periodically Poled Frequency Conversion Devices

1997 ◽  
Vol 484 ◽  
Author(s):  
David E. Zelmon ◽  
David L. Small ◽  
Peter Schunemann
Keyword(s):  
Refractive Index ◽  
Barium Titanate ◽  
Optical Parametric Oscillator ◽  
Frequency Conversion ◽  
Phase Matching ◽  
Optical Frequency ◽  
Periodically Poled ◽  
Optical Frequency Conversion ◽  
Optical Parametric ◽  
Quasi Phase Matching

AbstractBarium titanate has recently been suggested as a possible candidate for use in periodically poled optical frequency conversion devices. We report refractive index measurements which are critical to periodically poled device designers and present quasi phase matching loci which can be used to design an optical parametric oscillator in periodically poled barium titanate

scholarly journals Phase-matching conditions for nonlinear frequency conversion by use of aligned molecular gases

2003 ◽  
Vol 28 (5) ◽  
pp. 346 ◽  
Author(s):  
R. A. Bartels ◽  
N. L. Wagner ◽  
M. D. Baertschy ◽  
J. Wyss ◽  
M. M. Murnane ◽  
...  
Keyword(s):  
Frequency Conversion ◽  
Phase Matching ◽  
Nonlinear Frequency ◽  
Matching Conditions ◽  
Nonlinear Frequency Conversion ◽  
Molecular Gases
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