Conical ring beam achieved via degenerated optical parametric generation in tightly focused quasi-phase matching conditions

2019 ◽  
Author(s):  
Wei Zhao ◽  
Chuan Guo ◽  
Lingwei Zhao ◽  
Lei Liu ◽  
Hongyan Wang ◽  
...  
Keyword(s):  
Phase Matching ◽  
Matching Conditions ◽  
Parametric Generation ◽  
Optical Parametric ◽  
Optical Parametric Generation ◽  
Quasi Phase Matching

scholarly journals Optical Parametric Generation in a Lithium Niobate Microring with Modal Phase Matching

2019 ◽  
Vol 11 (3) ◽  
Author(s):  
Rui Luo ◽  
Yang He ◽  
Hanxiao Liang ◽  
Mingxiao Li ◽  
Jingwei Ling ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Phase Matching ◽  
Parametric Generation ◽  
Optical Parametric ◽  
Optical Parametric Generation

scholarly journals Optical parametric generation in biaxial KTA crystal under pumping by YAG:Nd laser in arbitrary directions

2021 ◽  
Vol 57 (3) ◽  
pp. 374-384
Author(s):  
U. I. Dashkevich ◽  
A. A. Rusak ◽  
G. I. Timofeeva ◽  
A. P. Shkadarevich ◽  
P. A. Apanasevich ◽  
...  
Keyword(s):  
Tuning Range ◽  
Nonlinear Coefficient ◽  
Polar Angle ◽  
Phase Matching ◽  
Type I ◽  
Parametric Generation ◽  
Tuning Curves ◽  
Optical Parametric ◽  
Maximum Value ◽  
Optical Parametric Generation

Herein, on the basis of expressions for the refractive indices of isonormal waves, the possibility of performing collinear phase matching for optical parametric generation in arbitrary directions of a biaxial KTA crystal under pumping by radiation of a YAG:Nd laser is analyzed. The tuning curves that determine the tuning range of the signal and idler for type-I and II-type phase-matching and arbitrary angles θ and φ in cases where the tuning is carried out along the angle θ at a fixed angle φ and vice versa are calculated. The effective nonlinear coefficient is determined. It is shown that their maximum value is achieved аt a polar angle θ = 90° and type-II phase-matching. For the case of generation of eye-safe radiation the spectral and angular phase matching widths were estimated, as well as gain widths of KTA-OPO under monochromatic pumping.

Optical parametric generation of high-energy femtosecond pulses in the 1-3 μm spectral range using BiB 3 O 6

2007 ◽  
Author(s):  
Valentin Petrov ◽  
Masood Ghotbi ◽  
Pancho Tzankov ◽  
Frank Noack ◽  
Ivailo Nikolov ◽  
...  
Keyword(s):  
Spectral Range ◽  
High Energy ◽  
Femtosecond Pulses ◽  
Parametric Generation ◽  
Optical Parametric ◽  
Optical Parametric Generation

scholarly journals Engineered quasi-phase matching for multiple parametric generation

2009 ◽  
Vol 17 (5) ◽  
pp. 3765 ◽  
Author(s):  
Usman K. Sapaev ◽  
Gaetano Assanto
Keyword(s):  
Phase Matching ◽  
Parametric Generation ◽  
Quasi Phase Matching
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