Polarization - and wavelength-stable superfluorescence - light sources with the use of faraday rotator - mirrors -

摘要

PROBLEM TO BE SOLVED: To reduce a polarization-dependent gain(PDG) induced by a polarized pump light by controlling the wavelength stability of a super-fluorescent light source by optical constitution.;SOLUTION: In one device and method, a Faraday rotator mirror is used for the edge of the waveguide of the super-fluorescent light source. In another device and method, the birefringence of the waveguide is used with the Faraday rotator mirror so that the influence of the PDG on the mean wavelength difference between the spectrum outputs of the orthogonal polarization components can be further averaged.;COPYRIGHT: (C)2001,JPO