Polarization-free second-order nonlinear frequency conversion using the optical superlattice

2010 ◽  
Vol 36 (1) ◽  
pp. 7 ◽  
Author(s):  
X. J. Lv ◽  
J. Lu ◽  
Z. D. Xie ◽  
J. Yang ◽  
G. Zhao ◽  
...  
Keyword(s):  
Frequency Conversion ◽  
Second Order ◽  
Nonlinear Frequency ◽  
Nonlinear Frequency Conversion ◽  
Optical Superlattice

Optimization of Second Order Nonlinear Frequency Conversion in Lithium Niobate Microrings

2019 ◽  
Author(s):  
Joshua B. Surya ◽  
Alexander W. Bruch ◽  
Juanjuan Lu ◽  
Zheng Gong ◽  
Yuntao Xu ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Frequency Conversion ◽  
Second Order ◽  
Nonlinear Frequency ◽  
Nonlinear Frequency Conversion

Second-order nonlinear frequency conversion processes in plasmonic slot waveguides

2012 ◽  
Vol 29 (7) ◽  
pp. 1606 ◽  
Author(s):  
Shakeeb Bin Hasan ◽  
Carsten Rockstuhl ◽  
Thomas Pertsch ◽  
Falk Lederer
Keyword(s):  
Frequency Conversion ◽  
Second Order ◽  
Nonlinear Frequency ◽  
Nonlinear Frequency Conversion ◽  
Slot Waveguides

scholarly journals Difference-frequency generation in optically poled silicon nitride waveguides

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ezgi Sahin ◽  
Boris Zabelich ◽  
Ozan Yakar ◽  
Edgars Nitiss ◽  
Junqiu Liu ◽  
...  
Keyword(s):  
Silicon Nitride ◽  
Frequency Conversion ◽  
Difference Frequency Generation ◽  
Second Order ◽  
Difference Frequency ◽  
Parametric Oscillation ◽  
Nonlinear Frequency ◽  
Nonlinear Frequency Conversion ◽  
All Optical ◽  
Frequency Generation

Abstract Difference-frequency generation (DFG) is elemental for nonlinear parametric processes such as optical parametric oscillation and is instrumental for generating coherent light at long wavelengths, especially in the middle infrared. Second-order nonlinear frequency conversion processes like DFG require a second-order susceptibility χ (2), which is absent in centrosymmetric materials, e.g. silicon-based platforms. All-optical poling is a versatile method for inducing an effective χ (2) in centrosymmetric materials through periodic self-organization of charges. Such all-optically inscribed grating can compensate for the absence of the inherent second-order nonlinearity in integrated photonics platforms. Relying on this induced effective χ (2) in stoichiometric silicon nitride (Si3N4) waveguides, second-order nonlinear frequency conversion processes, such as second-harmonic generation, were previously demonstrated. However up to now, DFG remained out of reach. Here, we report both near- and non-degenerate DFG in all-optically poled Si3N4 waveguides. Exploiting dispersion engineering, particularly rethinking how dispersion can be leveraged to satisfy multiple processes simultaneously, we unlock nonlinear frequency conversion near 2 μm relying on all-optical poling at telecommunication wavelengths. The experimental results are in excellent agreement with theoretically predicted behaviours, validating our approach and opening the way for the design of new types of integrated sources in silicon photonics.

New Principle, Platform, and Application of Nonlinear Frequency Conversion

2021 ◽  
Vol 41 (1) ◽  
pp. 0119001
Author(s):  
陈险峰 Chen Xianfeng ◽  
郑远林 Zheng Yuanlin ◽  
刘海港 Liu Haigang ◽  
刘时杰 Liu Shijie ◽  
李渊华 Li Yuanhua ◽  
...  
Keyword(s):  
Frequency Conversion ◽  
Nonlinear Frequency ◽  
Nonlinear Frequency Conversion

Diode laser systems based on nonlinear frequency conversion

2018 ◽  
pp. 209-245
Author(s):  
Ole Bjarlin Jensen ◽  
Anders Kragh Hansen ◽  
Christian Pedersen ◽  
Peter E. Andersen ◽  
Paul Michael Petersen
Keyword(s):  
Diode Laser ◽  
Frequency Conversion ◽  
Nonlinear Frequency ◽  
Nonlinear Frequency Conversion ◽  
Laser Systems
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