scholarly journals Log-log growth of channel capacity for nondispersive nonlinear optical fiber channel in intermediate power range

2017 ◽  
Vol 95 (6) ◽  
Author(s):  
I. S. Terekhov ◽  
A. V. Reznichenko ◽  
Ya. A. Kharkov ◽  
S. K. Turitsyn
Keyword(s):  
Optical Fiber ◽  
Channel Capacity ◽  
Nonlinear Optical ◽  
Fiber Channel

scholarly journals Key Distribution Scheme for Optical Fiber Channel Based on SNR Feature Measurement

Photonics ◽  
2021 ◽  
Vol 8 (6) ◽  
pp. 208
Author(s):  
Xiangqing Wang ◽  
Jie Zhang ◽  
Bo Wang ◽  
Kongni Zhu ◽  
Haokun Song ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Optical Networks ◽  
Signal To Noise Ratio ◽  
Key Distribution ◽  
Key Generation ◽  
Sensitive Data ◽  
Big Data Applications ◽  
Distribution Scheme ◽  
Fiber Channel ◽  
Physical Level

With the increase in the popularity of cloud computing and big data applications, the amount of sensitive data transmitted through optical networks has increased dramatically. Furthermore, optical transmission systems face various security risks at the physical level. We propose a novel key distribution scheme based on signal-to-noise ratio (SNR) measurements to extract the fingerprint of the fiber channel and improve the physical level of security. The SNR varies with time because the fiber channel is affected by many physical characteristics, such as dispersion, polarization, scattering, and amplifier noise. The extracted SNR of the optical fiber channel can be used as the basis of key generation. Alice and Bob can obtain channel characteristics by measuring the SNR of the optical fiber channel and generate the consistent key by quantization coding. The security and consistency of the key are guaranteed by the randomness and reciprocity of the channel. The simulation results show that the key generation rate (KGR) can reach 25 kbps, the key consistency rate (KCR) can reach 98% after key post-processing, and the error probability of Eve’s key is ~50%. In the proposed scheme, the equipment used is simple and compatible with existing optic fiber links.

scholarly journals ANALYSIS OF ULTRA-SHORT PULSE PROPAGATION IN NONLINEAR OPTICAL FIBER

2009 ◽  
Vol 12 ◽  
pp. 219-241 ◽  
Author(s):  
Mohamed Bakry El Mashade ◽  
Mohamed Nady Abdel Aleem
Keyword(s):  
Optical Fiber ◽  
Nonlinear Optical ◽  
Pulse Propagation ◽  
Short Pulse ◽  
Ultra Short Pulse

Phase jitter of chirped subpicosecond solitons in a noisy optical fiber channel: Exact moment method description

2007 ◽  
Vol 80 (3) ◽  
pp. 34003 ◽  
Author(s):  
Shihua Chen ◽  
Y. H. Yang ◽  
Jin Xu ◽  
Peixiang Lu ◽  
Lin Yi
Keyword(s):  
Optical Fiber ◽  
Moment Method ◽  
Phase Jitter ◽  
Fiber Channel ◽  
Exact Moment
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