Title :
Low-loss 10-GHz-spaced tandem multi/demultiplexer with more than 1000 channels using a 1/spl times/5 interference multi/demultiplexer as a primary filter
Author :
Takada, K. ; Abe, M. ; Shibata, T. ; Okamoto, K.
Author_Institution :
NTT Photonics Labs., NTT Corp., Tokai, Japan
Abstract :
A very large channel-count low-loss optical multi/demultiplexer with more than 1000 channels is described. It was achieved by cascading a 1/spl times/5 flat-top interference multi/demultiplexer as a primary filter and five 10 GHz-spaced 1/spl times/288 arrayed-waveguide gratings as secondary filters in a tandem configuration.
Keywords :
demultiplexing equipment; diffraction gratings; multiplexing equipment; optical arrays; optical communication equipment; optical fibre amplifiers; optical fibre communication; optical planar waveguides; optical waveguide components; telecommunication channels; wavelength division multiplexing; arrayed-waveguide grating secondary filters; arrayed-waveguide gratings; cascaded primary/secondary filters; channel-count; crosstalk; gratings; interference multi/demultiplexer primary filter; low-loss optical multi/demultiplexer; multi/demultiplexer channels; optical fiber amplifiers; optical planar waveguides; tandem configuration; tandem multi/demultiplexer; waveguide arrays; wavelength-division multiplexing; Arrayed waveguide gratings; Band pass filters; Information filtering; Information filters; Interference; Optical arrays; Optical fiber filters; Optical filters; Optical waveguides; Passband;
Journal_Title :
Photonics Technology Letters, IEEE
