scholarly journals Generation of Second-Harmonic Bessel Beams by Transverse Phase-Matching in Annular Periodically Poled Structures

2008 ◽  
Vol 47 (8) ◽  
pp. 6777-6783 ◽  
Author(s):  
Solomon M. Saltiel ◽  
Dragomir N. Neshev ◽  
Robert Fischer ◽  
Wieslaw Krolikowski ◽  
Ady Arie ◽  
...  
Keyword(s):  
Second Harmonic ◽  
Phase Matching ◽  
Bessel Beams ◽  
Periodically Poled

Electro-optic modification of second-harmonic phase-matching spectra in segmented periodically poled LiNbO_3

2002 ◽  
Vol 19 (2) ◽  
pp. 280 ◽  
Author(s):  
Heiko Ridderbusch ◽  
Marvin E. Klein ◽  
Petra Gross ◽  
Dong-Hoon Lee ◽  
Jan-Peter Meyn ◽  
...  
Keyword(s):  
Second Harmonic ◽  
Phase Matching ◽  
Periodically Poled ◽  
Harmonic Phase ◽  
Electro Optic

Generation of 116-mW output power at 461 nm in a periodically poled lithium niobate waveguide

2022 ◽  
Author(s):  
Yusuke Hisai ◽  
Yoshiki Nishida ◽  
Hiroshi Miyazawa ◽  
Takumi Kobayashi ◽  
Feng-Lei HONG ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Optical Lattice ◽  
Second Harmonic ◽  
Beam Quality ◽  
Cold Atom ◽  
Phase Matching ◽  
Periodically Poled ◽  
Periodically Poled Lithium Niobate ◽  
Good Beam Quality ◽  
Output Facet

Abstract We demonstrate a second harmonic generation (SHG) of 116 mW at 461 nm in a periodically poled lithium niobate waveguide when the power of the 922-nm fundamental light is coupled into the waveguide was 350 mW. The waveguide is 12.5 μm wide, 12.0 μm thick, 22 mm long, and has a 1-mm-long slab window at the output facet of the waveguide. The temperature acceptance bandwidth of the phase-matching curve of the SHG is approximately 0.5 °C. The SHG system demonstrates good beam quality and is reliable for cold atom experiments, including research on optical lattice clocks.

scholarly journals Каскадная генерация второй гармоники с половинным порядком периодической ориентации

2020 ◽  
Vol 128 (11) ◽  
pp. 1717
Author(s):  
В.Ю. Мыльников ◽  
Н.С. Аверкиев ◽  
Г.С. Соколовский
Keyword(s):  
Light Propagation ◽  
Second Harmonic ◽  
Nonlinear Crystal ◽  
Phase Matching ◽  
Crystal Length ◽  
Periodically Poled ◽  
Second Stage ◽  
Fourth Harmonic ◽  
Harmonic Average ◽  
Heisenberg Equations

We theoretically demonstrate cascaded fourth and second harmonic generation in a periodically-poled nonlinear crystal with a half-order of phase-matching period. We consider a cascaded process in which four photons of the fundamental harmonic firstly convert into an intermediate photon of the fourth harmonic, which parametrically decays into two photons of the second harmonic at the second stage. Phase-matching for this cascaded nonlinear conversion is provided by using an asymmetric periodical poling. We use the quantum spatial Heisenberg equations to describe light propagation and conversion inside the nonlinear crystal. With this approach, we calculate second and fourth harmonic average number of photons as a function of the nonlinear crystal length.

scholarly journals Broadening of the second-harmonic phase-matching bandwidth in a temperature-gradient-controlled periodically poled Ti:LiNbO3 channel waveguide

2003 ◽  
Vol 11 (22) ◽  
pp. 2813 ◽  
Author(s):  
Yeung Lak Lee ◽  
Young-Chul Noh ◽  
Changsoo Jung ◽  
Tae Yu ◽  
Do-Kyeong Ko ◽  
...  
Keyword(s):  
Temperature Gradient ◽  
Second Harmonic ◽  
Channel Waveguide ◽  
Phase Matching ◽  
Periodically Poled ◽  
Harmonic Phase

Phase-matching with a twist: Second-harmonic generation in birefringent periodically poled fibers

2010 ◽  
Vol 27 (11) ◽  
pp. 2410 ◽  
Author(s):  
E. Y. Zhu ◽  
L. Qian ◽  
L. G. Helt ◽  
M. Liscidini ◽  
J. E. Sipe ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Phase Matching ◽  
Periodically Poled

Broadening of the second-harmonic phase-matching bandwidth in type II periodically poled KTP

2005 ◽  
Vol 44 (26) ◽  
pp. 5561 ◽  
Author(s):  
Rui Wu ◽  
Yuping Chen ◽  
Junfeng Zhang ◽  
Xianfeng Chen ◽  
Yuxing Xia
Keyword(s):  
Second Harmonic ◽  
Phase Matching ◽  
Type Ii ◽  
Periodically Poled ◽  
Harmonic Phase ◽  
Periodically Poled Ktp

scholarly journals New Sellmeier and Thermo-Optic Dispersion Formulas for AgGaS2

Crystals ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 129
Author(s):  
Kiyoshi Kato ◽  
Takayuki Okamoto ◽  
Sergey Grechin ◽  
Nobuhiro Umemura
Keyword(s):  
Second Harmonic ◽  
Diode Lasers ◽  
Difference Frequency Generation ◽  
Phase Matching ◽  
Temperature Dependent ◽  
Periodically Poled ◽  
Sum Frequency ◽  
Optical Parametric ◽  
Good Reproduction ◽  
Frequency Generation

This paper reports on the new Sellmeier and thermo-optic dispersion formulas that provide a good reproduction of the temperature-dependent phase-matching conditions for second-harmonic generation (SHG) and sum-frequency generation (SFG) of a CO2 laser and a Nd:YAG laser-pumped KTiOPO4 (KTP) optical parametric oscillator (OPO) in the 0.8859–10.5910 μm range as well as those for difference-frequency generation (DFG) between the two diode lasers in the 4.9–6.5 μm range and DFG between the two periodically poled LiNbO3 (PPLN) OPOs in the 5–12 μm range thus far reported in the literature.

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