Investigation of Polarization Mode Dispersion Influence to Different Optical Signal Modulation Formats

2012 ◽  
Author(s):  
Jurgis Porins ◽  
Girts Ivanovs ◽  
Andis Supe ◽  
Gunars Cauna
Keyword(s):  
Polarization Mode Dispersion ◽  
Optical Signal ◽  
Polarization Mode ◽  
Signal Modulation ◽  
Modulation Formats ◽  
Mode Dispersion

scholarly journals The influence of gamma radiation on polarization mode dispersion of fibers applied in communications

2012 ◽  
Vol 27 (2) ◽  
pp. 171-177 ◽  
Author(s):  
Rade Sekulic ◽  
Nikola Slavkovic ◽  
Milesa Sreckovic ◽  
Milojko Kovacevic ◽  
Miljan Stamenovic
Keyword(s):  
Optical Fiber ◽  
Gamma Radiation ◽  
Fiber Optics ◽  
Light Propagation ◽  
Signal Transmission ◽  
Polarization Mode Dispersion ◽  
Optical Signal ◽  
Polarization Mode ◽  
Mode Dispersion ◽  
Fiber Technology

The fiber optics technology is constantly being developed, and is becoming an essential component of contemporary communications, medicine and industry. Fibers, their connections and system components play a major role in optical signal transmission, telecommunications, power transmission, and sensing processes using fiber technology. The two main light propagation characteristics of an optical fiber are attenuation and dispersion. The possibility of controling these parameters is of utmost importance for obtaining the requested transmission quality. This paper reports on an investigation to determine the influence of gamma radiation of 60Co on the variation of optical fiber propagation parameters, such as polarization mode dispersion. In addition, it also considers chosen topics in the field of fiber optics technology.

scholarly journals POLARIZATION MODE DISPERSION COMPENSATOR BASED ON ANISOTROPIC OPTICAL FIBER

2020 ◽  
Vol 1 (1) ◽  
pp. 12-18
Author(s):  
O.M Staschuk ◽  
◽  
D.M Stepanov ◽  
D.H. Bahachuk
Keyword(s):  
Optical Fiber ◽  
Polarization Mode Dispersion ◽  
Optical Signal ◽  
Chemical Compositions ◽  
Polarization Mode ◽  
Double Refraction ◽  
Dispersion Compensator ◽  
Mode Dispersion ◽  
Wide Range ◽  
Polarization Mode Dispersion Compensator

Abstract. In this paper, a new method of polarization mode dispersion (PMD), which can significantly limit the speed and range of transmission of fiber optic transmission systems (FOTS), compensation was developed and analyzed. In contrast to the existing types of PMD compensators, in which the optical fiber is subjected to mechanical stresses to create a photoelastic anisotropy, in this work the use of alternative method of creating photoelasticity in optical fiber (OF) by creating a helical ordered rotation of the glass microstructure (ORMG) is proposed. The helical orientation of the microstructure of the OF glass is achieved by acting on the fiber in the process of manufacture (drawing), when it is in a hot state, electromagnetic field, the power lines of which are directed in a circle. I am not sure what this sentence is trying to say. The result is an asymmetry of the dielectric constant of the fiber glass material and therefore the anisotropy of the optical properties. When the optical signal propagates in such OF, there is a double refraction, which is the cause of artificial PMD in the compensator fiber. Compensation is achieved by performing the equality of the modulus and the sign-opposite between the linear path PMD and the PMD of the anisotropic OF with the ORMG. The expression of the calculation of the PMD of the compensator, which depends on the rotation step of the microstructure of the glass, the chemical composition of the OF, the length of the line, the width of the radiation spectrum and the wavelength of the optical signal, and the optical characteristics of the OF, is analyzed, as well as the spectral dependence of polarization mode dispersion for different chemical compositions of the OF. The expression of determining the length of the OF with the ORMG is presented to compensate for the set value of the PMD in the line. The results of the studies made it possible to determine the lengths of the segments of OF with ORMG, which will provide partial or complete compensation of PMD over a wide range of wavelengths and create passive compensators for dispersion.

Analysis of Polarization Mode Dispersion Compensation Performance for Different Modulation Formats

2008 ◽  
Vol 28 (2) ◽  
pp. 226-232
Author(s):  
许玮 许玮 ◽  
段高燕 段高燕 ◽  
方光青 方光青 ◽  
席丽霞 席丽霞 ◽  
张晓光 张晓光
Keyword(s):  
Dispersion Compensation ◽  
Polarization Mode Dispersion ◽  
Polarization Mode ◽  
Modulation Formats ◽  
Mode Dispersion
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