Nonlinear Frequency Conversion in the Hybrid Silicon Nitride - Lithium Niobate Integrated Platform

2021 ◽  
Author(s):  
Mikhail Churaev ◽  
Annina Riedhauser ◽  
Rui N. Wang ◽  
Charles Möhl ◽  
Viacheslav Snigirev ◽  
...  
Keyword(s):  
Silicon Nitride ◽  
Lithium Niobate ◽  
Frequency Conversion ◽  
Nonlinear Frequency ◽  
Nonlinear Frequency Conversion ◽  
Integrated Platform ◽  
Hybrid Silicon

Nonlinear frequency conversion in one dimensional lithium niobate photonic crystal nanocavities

2018 ◽  
Vol 113 (2) ◽  
pp. 021104 ◽  
Author(s):  
Haowei Jiang ◽  
Hanxiao Liang ◽  
Rui Luo ◽  
Xianfeng Chen ◽  
Yuping Chen ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Lithium Niobate ◽  
Frequency Conversion ◽  
Nonlinear Frequency ◽  
Nonlinear Frequency Conversion ◽  
One Dimensional

scholarly journals Domain-Reversed Lithium Niobate Single-Crystal Fibers are Potentially for Efficient Terahertz Wave Generation

2008 ◽  
Vol 2008 ◽  
pp. 1-5
Author(s):  
Yalin Lu ◽  
Kitt Reinhardt
Keyword(s):  
Lithium Niobate ◽  
Single Crystal ◽  
Frequency Conversion ◽  
Optical Microscope ◽  
Terahertz Wave ◽  
Nonlinear Frequency ◽  
Periodic Domain ◽  
Nonlinear Frequency Conversion ◽  
Lithium Niobate Single Crystal ◽  
Crystal Fibers

Nonlinear frequency conversion remains one of the dominant approaches to efficiently generate THz waves. Significant material absorption in the THz range is the main factor impeding the progress towards this direction. In this research, a new multicladding nonlinear fiber design was proposed to solve this problem, and as the major experimental effort, periodic domain structure was introduced into lithium niobate single-crystal fibers by electrical poling. The introduced periodic domain structures were nondestructively revealed using a crossly polarized optical microscope and a confocal scanning optical microscope for quality assurance.

Nonlinear Frequency Conversion in the Hybrid Si3N4 - LiNbO3 Integrated Platform

2021 ◽  
Author(s):  
Mikhail Churaev ◽  
Annina Riedhauser ◽  
Rui N. Wang ◽  
Charles Mohl ◽  
Viacheslav Snigirev ◽  
...  
Keyword(s):  
Frequency Conversion ◽  
Nonlinear Frequency ◽  
Nonlinear Frequency Conversion ◽  
Integrated Platform

Nonlinear Frequency Conversion in Lithium Niobate Thin Films

2021 ◽  
Vol 41 (8) ◽  
pp. 0823013
Author(s):  
刘时杰 Liu Shijie ◽  
郑远林 Zheng Yuanlin ◽  
陈险峰 Chen Xianfeng
Keyword(s):  
Thin Films ◽  
Lithium Niobate ◽  
Frequency Conversion ◽  
Nonlinear Frequency ◽  
Nonlinear Frequency Conversion

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

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.

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