Technical digest - Symposium on Optical Fiber Measurements, 1980

The possibility of in-fiber Bragg gratings characterization by analyzing of the first and second order interferometric autocorrelation functions of ps-pulses fi-om a fiber laser and that ones reflected fi-om the fiber grating has been investigated. The initial pulses were almost unchirped but the reflected ones obtained a significantly nonlinear phase shift induced by the fiber grating. Pulses nonlinear phase is dependent on gratings chirp and can be evaluated by means of interferometric autocorrelation measurements.