Title :
Theoretical basis of polarization mode dispersion equalization up to the second order
Author :
Kudou, Teruhiko ; Iguchi, Midori ; Masuda, Masaru ; Ozeki, Takeshi
Author_Institution :
Dept. of Electr. & Electron. Eng., Sophia Univ., Tokyo, Japan
fDate :
4/1/2000 12:00:00 AM
Abstract :
We introduce a theoretical basis of polarization mode dispersion (PMD) equalizers based on the operator representation of PMD using Taylor´s expansion. The two types of configuration of PMD equalizers are derived as the inverse of diagonalization operators and delay time difference compensation. One is a type using physical rotation of quarter wave phase plates. The other is a type using variable phase shifters suitable for PLC integration. Waveform comparison algorithm was simulated to show the existence of multiple equivalent optimum points due to the symmetry and periodicity of optical circuits. The second order PMD equalization is discussed briefly on the case of cascading the first and the second PMD equalizing circuits with two different polarization state converters.
Keywords :
compensation; equalisers; integrated optoelectronics; optical communication equipment; optical fibre dispersion; optical fibre polarisation; optical fibre theory; optical phase shifters; PLC integration; PMD equalizers; Taylor´s expansion; delay time difference compensation; diagonalization operators; multiple equivalent optimum points; operator representation; optical circuit periodicity; physical rotation; polarization mode dispersion equalization; polarization state converters; quarter wave phase plates; second PMD equalizing circuits; second order; second order PMD equalization; symmetry; theoretical basis; variable phase shifters; waveform comparison algorithm; Adaptive optics; Circuits; Delay effects; Equalizers; Optical fiber cables; Optical fiber polarization; Optical pulse shaping; Polarization mode dispersion; Transfer functions; Transmission line matrix methods;
Journal_Title :
Lightwave Technology, Journal of
