scholarly journals Seeded Multimode Quasi-Phase-Matching in All-Optically Poled Silicon Nitride Waveguides

2021 ◽  
Author(s):  
Ozan Yakar ◽  
Edgars Nitiss ◽  
Camille-Sophie Brès
Keyword(s):  
Silicon Nitride ◽  
Phase Matching ◽  
Quasi Phase Matching

scholarly journals Optically reconfigurable quasi-phase-matching in silicon nitride microresonators

2022 ◽  
Author(s):  
Edgars Nitiss ◽  
Jianqi Hu ◽  
Anton Stroganov ◽  
Camille-Sophie Brès
Keyword(s):  
Silicon Nitride ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Momentum Conservation ◽  
Phase Matching ◽  
Large Radius ◽  
Quasi Phase Matching ◽  
All Optical ◽  
On Chip

AbstractQuasi-phase-matching has long been a widely used approach in nonlinear photonics, enabling efficient parametric frequency conversions such as second-harmonic generation. However, in silicon photonics the task remains challenging, as materials best suited for photonic integration lack second-order susceptibility (χ(2)), and means for achieving momentum conservation are limited. Here we present optically reconfigurable quasi-phase-matching in large-radius silicon nitride microresonators, resulting in up to 12.5-mW on-chip second-harmonic generated power and a conversion efficiency of 47.6% W−1. Most importantly, we show that such all-optical poling can occur unconstrained from intermodal phase-matching, leading to broadly tunable second-harmonic generation. We confirm the phenomenon by two-photon imaging of the inscribed χ(2) grating structures within the microresonators as well as by in situ tracking of both the pump and second-harmonic mode resonances during all-optical poling. These results unambiguously establish that the photogalvanic effect, responsible for all-optical poling, can overcome phase mismatch constraints, even in resonant systems.

scholarly journals Broadband quasi-phase-matching in dispersion-engineered all-optically poled silicon nitride waveguides

2020 ◽  
Vol 8 (9) ◽  
pp. 1475
Author(s):  
Edgars Nitiss ◽  
Boris Zabelich ◽  
Ozan Yakar ◽  
Junqiu Liu ◽  
Rui Ning Wang ◽  
...  
Keyword(s):  
Silicon Nitride ◽  
Phase Matching ◽  
Quasi Phase Matching

Influence of stochastic deviations of domain boundary and varying effective index on difference frequency mixing in quasi-phase-matching waveguides

2005 ◽  
Vol 247 (1-3) ◽  
pp. 205-212 ◽  
Author(s):  
Li Yunchu ◽  
Qingpu Wang ◽  
Xingyu Zhang ◽  
Dongfeng Yuan ◽  
Zejin Liu ◽  
...  
Keyword(s):  
Domain Boundary ◽  
Effective Index ◽  
Difference Frequency ◽  
Phase Matching ◽  
Quasi Phase Matching ◽  
Frequency Mixing

High-order quasi–phase-matching harmonic generation in two-dimensional orthorhombic lattice

2004 ◽  
Vol 68 (6) ◽  
pp. 804-810 ◽  
Author(s):  
Boqin Ma ◽  
Ting Wang ◽  
Peigen Ni ◽  
Bingying Cheng ◽  
Daozhong Zhang
Keyword(s):  
Harmonic Generation ◽  
High Order ◽  
Phase Matching ◽  
Two Dimensional ◽  
Orthorhombic Lattice ◽  
Quasi Phase Matching

Continuous wave second-harmonic generation using domain-disordered quasi-phase matching waveguides

2009 ◽  
Vol 94 (15) ◽  
pp. 151107 ◽  
Author(s):  
Sean J. Wagner ◽  
Barry M. Holmes ◽  
Usman Younis ◽  
Amr S. Helmy ◽  
J. Stewart Aitchison ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Continuous Wave ◽  
Second Harmonic ◽  
Phase Matching ◽  
Quasi Phase Matching

Annual-ring-type quasi-phase-matching crystal for generation of narrowband high-dimensional entanglement

2018 ◽  
Vol 97 (1) ◽  
Author(s):  
Yi-Lin Hua ◽  
Zong-Quan Zhou ◽  
Xiao Liu ◽  
Tian-Shu Yang ◽  
Zong-Feng Li ◽  
...  
Keyword(s):  
Annual Ring ◽  
High Dimensional ◽  
Phase Matching ◽  
Ring Type ◽  
Quasi Phase Matching
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