Title :
Sensitivity of two core fiber coupling to light-induced defects
Author :
Saifi, M.A. ; Silberberg, Y. ; Weiner, A.M. ; Fouckhardt, H. ; Andrejco, M.J.
Author_Institution :
Bellcore, Red Bank, NJ, USA
Abstract :
Permanent changes in the refractive index of a germania-doped silica core fiber nonlinear directional coupler exposed to 620-nm wavelength high-intensity 100-fs pulses are discussed. The index change, on the order of 10/sup -5/, is estimated from the detuning aspects of the coupler. Both the constraints and beneficial aspects of these defects for nonlinear optical devices are discussed.<>
Keywords :
directional couplers; germanium compounds; high-speed optical techniques; nonlinear optics; optical couplers; optical fibres; refractive index; silicon compounds; 100 fs; 620 nm; SiO/sub 2/:GeO/sub 2/ core fiber nonlinear directional coupler; detuning aspects; high intensity pulses; light-induced defects; nonlinear optical devices; refractive index; two core fiber coupling; Directional couplers; Fiber nonlinear optics; Nonlinear optical devices; Optical coupling; Optical harmonic generation; Optical refraction; Optical signal processing; Optical variables control; Refractive index; Ultrafast optics;
Journal_Title :
Photonics Technology Letters, IEEE
