The dependence of the nonlinear refractive index n2 on glass compositions for optical fibers is clarified. The relation between n2 and germanium- or fluorine-doped SiO2 is calculated on the basis of the measurement of n2 at 1.55 μm with the improved cross-phase-modulation method, taking into account the radial distribution of the optical power in the fibers.
© 1995 Optical Society of America
Original Manuscript: July 7, 1995
Published: November 15, 1995
T. Kato, Y. Suetsugu, and M. Nishimura, "Estimation of nonlinear refractive index in various silica-based glasses for optical fibers," Opt. Lett. 20, 2279-2281 (1995)