All-optical processing by fiber delay and four-wave mixing of high-bit-rate nonreturn-to-zero signals for timing extraction by optical injection locking

2002 ◽  
Vol 14 (6) ◽  
pp. 852-854 ◽  
Author(s):  
A. Bilenca ◽  
D. Dahan ◽  
J. Lasri ◽  
G. Eisenstein
2021 ◽  
Vol 01 ◽  
Author(s):  
Yujun Hou ◽  
Chun Jiang

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.


1998 ◽  
Author(s):  
D. Nesset ◽  
A.E. Kelly ◽  
D.D. Marcenac ◽  
A. Wonfor ◽  
M.F.C. Stephens

2021 ◽  
pp. 127859
Author(s):  
Yuejiao Zi ◽  
Yang Jiang ◽  
Xiangping Chen ◽  
Qiang Yu ◽  
Jiahui Li ◽  
...  

2017 ◽  
Vol 53 (19) ◽  
pp. 1321-1323 ◽  
Author(s):  
Wenchan Dong ◽  
Jie Hou ◽  
Xinliang Zhang

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