Patent ID: 6597831
Filing Date: 2003-07-22
Classification: G02B

Abstract:
A linear wavelength DWDM comprising:a generally rectangular-shaped optically transmissive medium having a constant index of refraction, two opposite ends, two opposite sides and a thickness; a first port defining a first optical axis for connection to an optical waveguide carrying a polychromatic signal, said signal being composed of at least two discrete signals that are spectrally equally spaced; a first mirror having a radius of curvature R1 fabricated on said medium, said first port and said first mirror being in optical communication; a reflective grating fabricated on said medium, said reflective grating being in optical communication with said first mirror; a second mirror having a radius of curvature R2, said second mirror being fabricated on said medium, said second mirror being in optical communication with said reflective grating; and a second port defining a second optical axis, said second port being in optical communication with said second mirror, said second port being for connection to a ribbon waveguide containing at least two optical waveguides, each of said waveguides carrying one of said at least two discrete signals, the at least two discrete signals being physically equally spaced.