Patent ID: 6744553
Filing Date: 2004-06-01
Classification: G02F

Abstract:
An apparatus operable to convert wavelengths of a plurality of optical signals, the apparatus comprising:a coupler operable to receive a pump signal and a plurality of input signals each input signal comprising at least one wavelength different than the wavelengths of others of the plurality of input optical signals; an optical medium operable to receive the pump signal and the plurality of input signals from the coupler, wherein the pump signal and each of the plurality of input signals are synchronized to overlap at least partially during at least a part of the time spent traversing the optical medium to facilitate generation of a plurality of converted wavelength signals each comprising a wavelength that is different than the wavelengths of at least some of the plurality of input signals; wherein a cross-talk between the converted wavelength signals comprises less than minus fourteen decibels (âˆ’14 dB) over a wavelength range of at least seven (7) nanometers or wherein a polarization sensitivity of the converter is less than 1.2 decibels over a wavelength range of at least seven (7) nanometers.