Patent ID: 6757097
Filing Date: 2004-06-29
Classification: G02B,G02F

Abstract:
A wavelength dependent optical device comprising:at least two optical Ports; a first series of optical components placed between said two Ports and a first dielectric mirror; a first dielectric mirror operating substantially in reflectance mode in at least a first predetermined wavelength range and substantially in transmission mode in at least a second predetermined wavelength range; at least one second optical component placed in the optical path between said first dielectric mirror and a second mirror; a second mirror operating substantially in reflectance mode at said second predetermined wavelength range; wherein light emitted from a first said Port at said first predetermined wavelength is transmitted to a second said Port, and light emitted from a first said Port at said second predetermined wavelength is transmitted away from said second Port, and wherein light emitted from said second Port at said first predetermined wavelength is transmitted away from said first Port, and light emitted from said second Port at said second predetermined wavelength is transmitted to said first Port.