Patent ID: 6602002
Filing Date: 2003-08-05
Classification: H04B

Abstract:
A high-capacity optical transmission arrangement comprising:a plurality of laser sources, each coupled to an individual optical waveguide; a plurality of waveguide grating routers having an input section and an output section, the input section of each of the routers being coupled to selected ones of the individual optical waveguides and the output section of each of the routers being coupled to an individual output waveguide; a coupler, coupled to the individual output waveguides from the waveguide grating routers, said coupler having an output waveguide; and a plurality of wide-band optical amplifiers optically connected in series, a first wide-band optical amplifier in communication with the output waveguide of the coupler, each one of said plurality of wide-band optical amplifiers including: a common input section into which the optical signals arrive; and a split-section, in optical communication with the common section, the split section having a plurality of amplification branches wherein particular sub-bands of the optical signals traverse particular ones of the amplification branches in parallel.