Title :
Pulse broadening in Photonic Crystal Fibers due to self phase modulation
Author :
Rao, Uma R. ; Lande, B.K.
Author_Institution :
VJTI, Mumbai, India
Abstract :
Fiber nonlinearities are more enhanced in Photonic Crystal Fibers (PCFs) due to their extremely small Mode Field Diameters (MFDs). One of the outcomes of these nonlinearities is self phase modulation (SPM). SPM makes a Gaussian pulse propagating in a nonlinear, non dispersive medium to undergo frequency chirping without changing its temporal envelope. This generates additional frequency components in the pulse causing spectral broadening. Such a phenomenon can be further explored in designing broad band coherent light sources to be used in wavelength division multiplexing systems. A quick method to estimate the amount of spectral broadening in PCFs is presented.
Keywords :
holey fibres; optical modulation; phase modulation; photonic crystals; wavelength division multiplexing; Gaussian pulse; WDM; broadband coherent light sources; fiber nonlinearities; frequency chirping; mode field diameters; photonic crystal fibers; pulse broadening; self phase modulation; spectral broadening; wavelength division multiplexing systems; Nonlinear optics; Optical fiber dispersion; Optical fibers; Optical pulses; Photonic crystal fibers; Refractive index; Fiber nonlinearities; PCF; SPM; spectral broadening;
Conference_Titel :
Wireless And Optical Communications Networks (WOCN), 2010 Seventh International Conference On
Conference_Location :
Colombo
Print_ISBN :
978-1-4244-7203-1
DOI :
10.1109/WOCN.2010.5587345
