MULTIWAVELENGTH LIGHT SOURCE

摘要

PROBLEM TO BE SOLVED: To actualize a desired multiwavelength light output system of a simple and small-sized constitution for optical device evaluation which has an output intensity and a light spectrum stable in nonpolarization characteristics, and also has respective uniform wavelength output powers. SOLUTION: Spectral light (b) corresponding to transmission characteristics which is outputted by a Fabri-Perot etalon optical filter 3 through a 1st optical circulator 2a for the light emitted by a natural light emitting source 1 is amplified by an optical amplifier 4 through a 2nd optical circulator 2b and the spectral light (c) which is cut more sharply by a Fabri-Perot etalon optical filter 3 through an optical fiber 5 and a 2nd optical circulator 2b is outputted from an output port 6 through the 1st optical circulator 2a.