Novel applications of photosensitivity in Ge-doped silica: Bragg grating matched filtering for optical fiber dispersion compensation and multilayer optical storage medium

Author(s):  
K.O. Hill ◽  
T. Kitagawa ◽  
S. Theriault ◽  
F. Bilodeau ◽  
D.C. Johnson ◽  
...  
2013 ◽  
Vol 4 (3) ◽  
pp. 742-754
Author(s):  
Er. Abhishek Sharma ◽  
Er. Sukhbir Singh ◽  
Er. Bhubneshwar Sharma

Dispersion is defined as - the phenomenon in an optical fiber whereby light photons arrive at a distant point  in the different phase then they entered the fiber. Dispersion causes signal distortion that ultimately limits the bandwidth and usable length of the fiber cable. Therefore dispersion compensation (management) becomes an essential part to study in optical communication for better transmission. In this paper we have reviewed the various techniques (schemes) that are used for dispersion compensation.


2001 ◽  
Author(s):  
Li Pei ◽  
Shuisheng Jian ◽  
Tigang Ning ◽  
Zenghua Xie ◽  
Fengping Yan

2018 ◽  
Vol 7 (3.4) ◽  
pp. 218 ◽  
Author(s):  
Hussein Ahmed Mahmood ◽  
Riyadh Khlf Ahmed

Fiber Bragg Grating (FBG) is distributed reflector written in short length of optical fiber to reflect specific wavelengths of light and transmit the other components of spectra. By using FBG method in dispersion compensation can boost significantly the system performance. High capacity transmission and low effective cost of Radio over Fiber technique (Rof) are resulted from the combination of the optical communication capacity and the mobility of wireless networks. In this research article, an investigation of radio over fiber transmission for 50 km-long optical fiber operated at 10 Gb/s data rate and modulated under efficient DPSK modulation technique. The effect of Fiber Bragg Grating as chromatic dispersion compensation and channel spacing in WDM on optical communication system is analyzed and evaluated. The system performance is evaluated in terms of eye diagram. The outcomes of our simulation shows that Four unequal spacing channels radio over fiber system with ideal dispersion FBG has the best performance in terms of Q-factor and BER.  


2014 ◽  
Vol 635-637 ◽  
pp. 1090-1093
Author(s):  
Wei Song ◽  
Shi Quan Qiao ◽  
Xiao Lin Zhang ◽  
Shu Hai Wang ◽  
Shu Wang Chen

In the optical fiber communication system of high-speed and large capacity, the dispersion is one of the main technical indicators. The dispersion causes the light pulse broadening, so it leads to the distortion of signal transmission and BER (bit error rate). The main research is the single-mode optical fiber dispersion compensation. The design and performance of system structure on the dispersion compensation fiber communication system is accomplished by using of the optic system optical fiber communication system simulation. Through the analysis of system structure and the research of the performance of the key components of the system, the output signal waveform is simulated and the influence of the output signal waveform by the system structure and key components performance of the receiving end is compared. The design can reduce the system dispersion.


The growth of optical systems is stimulated for high channel capacity and high bandwidth to meet the explosive development in data communication. Most of the voice and data traffic is transmitted through optical fiber link in these days. In order to share the large bandwidth of optical fiber by multiple channels of different wavelength with higher data rate WDM networks are used. The performance WDM networks are highly effected by the nonlinear dispersion which needs to be managed. In this paper the performance of WDM optical network is analyzed by using Dispersion compensation fiber, fiber bragg grating, and polarization controller. It has been concluded from the results that the use of polarization controller provides the high quality output as compare to Dispersion compensation fiber, fiber bragg grating for each channel.


Sign in / Sign up

Export Citation Format

Share Document