scholarly journals All Optical Signal-Processing Techniques Utilizing Four Wave Mixing

Photonics ◽  
2015 ◽  
Vol 2 (1) ◽  
pp. 200-213 ◽  
Author(s):  
Refat Kibria ◽  
Michael Austin
Keyword(s):  
Signal Processing ◽  
Optical Signal Processing ◽  
Four Wave Mixing ◽  
Optical Signal ◽  
Wave Mixing ◽  
All Optical ◽  
Processing Techniques ◽  
Signal Processing Techniques

Ultrahigh-efficiency enhancedfour-wave-mixing in Si-Ge-Graphene photonic crystal waveguide

2021 ◽  
Vol 01 ◽  
Author(s):  
Yujun Hou ◽  
Chun Jiang
Keyword(s):  
Signal Processing ◽  
Photonic Crystal ◽  
Conversion Efficiency ◽  
Optical Signal Processing ◽  
Four Wave Mixing ◽  
Optical Signal ◽  
Wave Mixing ◽  
Photonic Crystal Waveguide ◽  
Optical Processing ◽  
All Optical

Background: All-optical processing has a huge superiority in speed and efficiency than traditional optical-electrical-optical signal processing. Four-wave-mixing is an important nonlinear parametric process to achieve all-optical processing. Objective: We proposed the photonic crystal waveguide to enhance the conversion efficiency of four-wave-mixingsignificantly in practical application. Methods: We demonstrate a waveguide composed of silicon with mono-layer graphene coated as core and Si-Ge distributed periodically on both sides as cladding. By the introduction of slow light effect of Si-Ge photonic crystal and the localization effect of graphene, the conversion efficiency of four-wave-mixing has enhanced dramatically. Results: The conversion efficiency can be increased by 16dB compared with silicon waveguide and the maximum efficiency as high as -9.1dB can be achieved in the Si-Ge-Graphene photonic crystal waveguide (SGG-PhCWG).The propagation loss can be decreased as small as 0.032dB/cm. Conclusions: Numerical results of proposed SGG-PhCWGmatch well with nonlinear coupled-mode theory. This configuration offers a new physical mechanism and solution for all-optical signal processing and high efficiency nonlinear nanoscale devices.

All-Optical Signal Processing Techniques for Flexible Networks

2019 ◽  
Vol 37 (1) ◽  
pp. 21-35 ◽  
Author(s):  
Alan E. Willner ◽  
Ahmad Fallahpour ◽  
Fatemeh Alishahi ◽  
Yinwen Cao ◽  
Amirhossein Mohajerin-Ariaei ◽  
...  
Keyword(s):  
Signal Processing ◽  
Optical Signal Processing ◽  
Optical Signal ◽  
All Optical ◽  
Flexible Networks ◽  
Processing Techniques ◽  
Signal Processing Techniques
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