NON-POLARIZATION LIGHT SOURCE DEVICE AND RAMAN AMPLIFIER

摘要

A laser source (1) emits linearly polarized wave light having multiple mode with equal angular frequency intervals. A dispersion device (3) is coupled with laser source such that angle between polarization axis of laser light and dispersion device, is 45[deg]. The dispersion device outputs incident light which does not have polarization dispersion in vicinity of 2pi /delta omega , when mode interval angular frequency is delta omega . An independent claim is also included for Raman amplifier.