Patent ID: 6549319
Filing Date: 2003-04-15
Classification: H04B

Abstract:
An optical wavelength converting apparatus for use with a light source providing a light beam having a wavelength &lgr;, the apparatus comprising:(a) an optical wavelength conversion module including at least two optical modulators each capable of being coupled to the light source and respectively capable of modulating the light beam to a first modulated light beam including a pair of channels having wavelengths &lgr;Â±&Dgr;&lgr;i, and a second modulated light beam including a pair of channels having wavelengths &lgr;Â±&Dgr;&lgr;j where &Dgr;&lgr;iâ‰ &Dgr;&lgr;j; and (b) a wavelength controller for switching the light beam to one of said at least two optical modulators for modulation to one of said modulated light beams having a pair of channels with wavelengths &lgr;Â±&Dgr;&lgr;i or &lgr;Â±&Dgr;&lgr;j.