Title :
Measurements of n2 and normalization factor for random polarization in optical fibers
Author :
Chernikov, S.V. ; Taylor, J.R.
Author_Institution :
Dept. of Phys., Imperial Coll. of Sci., Technol. & Med., London, UK
fDate :
25 Feb.-1 March 1996
Abstract :
We measure the nonlinear coefficient through the effect of self-phase modulation (SPM) and cross-polarization (XPM) on a cw dual-frequency beat signal. Firstly, the nonlinear refractive index n2 for collinear polarization was measured through SPM. The copolarized output from two equal intensity DFB laser diodes centered at 1548.5 nm with a wavelength separation of 0.3 nm were used to generate a beat signal. This was amplified in an EDFA and on propagating through a dispersion-shifted fiber (DSF) of length 1-5 km experienced SPM.
Keywords :
nonlinear optics; optical fibre dispersion; optical fibre polarisation; optical modulation; phase modulation; refractive index; 1 to 5 km; 1548.5 nm; DFB laser diodes; EDFA; SPM; XPM; beat signal; collinear polarization; copolarized output; cross-polarization; cw dual-frequency beat signal; dispersion-shifted fiber; nonlinear coefficient; nonlinear refractive index; normalization factor; optical fibers; random polarization; self-phase modulation; wavelength separation; Coils; Laser excitation; Optical beams; Optical fiber polarization; Optical fiber testing; Optical fibers; Optical modulation; Optical pumping; Probes; Ultrafast optics;
Conference_Titel :
Optical Fiber Communications, 1996. OFC '96
Print_ISBN :
1-55752-422-X
DOI :
10.1109/OFC.1996.908302
