A tunable 1.1-μm fiber Raman oscillator

Abstract

A tunable 1.1-μm fiber Raman oscillator is reported. The oscillator is pumped by a cw mode-locked Nd : YAG laser at 1.064 μm. Wavelength tuning is obtained by using group velocity dispersion in a 600-m-long single-mode borosilicate fiber and subnanosecond pulses tunable from 1.101 to 1.125 μm are generated. The slope of the experimental tuning curve gives a group dispersion of 31 ps/nm km at 1.12 μm for the Raman fiber, in good agreement with the calculated value of combined material and waveguide dispersion.