Optimal design of narrow-band filter compensate layers used in WDM optical fiber communication system

2000 ◽  
Author(s):  
Xiaohui Zhang ◽  
Wei Tang ◽  
Qingming Chen ◽  
Weiming Zhu ◽  
Guang Yang
Keyword(s):  
Optimal Design ◽  
Optical Fiber ◽  
Communication System ◽  
Narrow Band ◽  
Optical Fiber Communication ◽  
Fiber Communication ◽  
Band Filter ◽  
Optical Fiber Communication System ◽  
Narrow Band Filter

Optimal Design and Performance Study of Optical Fiber Raman Amplifier with Flat Gain

2019 ◽  
Vol 14 (11) ◽  
pp. 1634-1642
Author(s):  
Hongsheng Li
Keyword(s):  
Optimal Design ◽  
Optical Fiber ◽  
Circuit Design ◽  
Communication System ◽  
Optical Fiber Communication ◽  
Fiber Communication ◽  
Signal Gain ◽  
Raman Amplifier ◽  
Fiber Raman Amplifier ◽  
Optical Fiber Communication System

Optical fiber communication is favored by many communication manufacturers because of its low interference, large capacity, long distance and low consumption. Extending the transmission distance of optical fiber communication system will result in attenuation loss. Therefore, it is necessary to improve the incident power of the initial optical fiber, but it will be affected by Raman scattering effect, thus reducing the performance of the overall optical fiber communication system. In order to overcome the above problems, Raman amplifier is used to pump high-power short-wavelength light wave and amplify long-wavelength and low-power signals, but the flattening of signal gain needs to be considered. In this study, the working principle of Raman amplifier is introduced, the Raman pump module is optimized, the system architecture of the module is studied, and the module circuit is designed. It mainly covers the structure design, driving circuit design and auxiliary circuit design of the module. In the experimental process, based on the transmission coupling equation of the fiber Raman amplifier, the distribution of pump and signal power on the fiber is calculated by numerical analysis. By optimizing the pump module, the gain flatness of the amplification system is optimized, and the signal gain of the whole fiber communication system is reduced by more than 80%. It proves that the optimal design of fiber Raman amplifier proposed in this study is effective and can achieve the overall stability of signal reception in the application of optical fiber communication system.

Optical neural networks based on optical fiber-communication system

2019 ◽  
Vol 364 ◽  
pp. 239-244 ◽  
Author(s):  
Tian-You Cheng ◽  
Da-Ya Chou ◽  
Ching-Chuan Liu ◽  
Ya-Ju Chang ◽  
Chii-Chang Chen
Keyword(s):  
Neural Networks ◽  
Optical Fiber ◽  
Communication System ◽  
Optical Fiber Communication ◽  
Fiber Communication ◽  
Optical Neural Networks ◽  
Optical Fiber Communication System

Loss Characteristics Analysis and Optimization of an Off-Axis Rotary Optical Fiber Communication System

2014 ◽  
Vol 596 ◽  
pp. 788-793 ◽  
Author(s):  
Xiao Hua Wang ◽  
Qian Zhao ◽  
Li Li ◽  
Jie Ding ◽  
Qiu Xin Zheng ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Communication System ◽  
High Speed ◽  
Optical Fiber Communication ◽  
Fiber Communication ◽  
Experiment Platform ◽  
Optical Fiber Communication System ◽  
Characteristics Analysis ◽  
Fiber Collimator ◽  
The Stability

The losses of the off-axis rotary optical fiber communication system were derived from optical fiber coupling, three kinds of misalignments between optical fiber collimators (Axial separation Z0, lateral offset X0, angular tilting θ), incomplete alignment of optical fiber collimator during rotation and system tremble caused by high speed rotating. Some measures were taken to reduce the loss. The thermally expanded core fiber collimator cut down the influence of axial separation and angular tilting. The position of the optical fiber collimator on the flange was adjusted and infrared right angle prisms were installed to reduce the losses during rotation of the system. In addition, improving the precision and optimizing device of mechanical structure can increase the stability of the whole experiment platform and decrease the losses.

Sign in / Sign up

Export Citation Format

Share Document