Title :
A.2.5 GHz-spaced 1080-channel tandem multi/demultiplexer covering the. S-, C-, and L-bands using an arrayed-waveguide grating with Gaussian passbands as a primary filter
Author :
Takada, K. ; Abe, M. ; Shibata, T. ; Okamoto, K.
Author_Institution :
NTT Photonics Labs., NTT Corp., Ibaraki, Japan
fDate :
5/1/2002 12:00:00 AM
Abstract :
We describe a low-loss 25-GHz-spaced multi/demultiplexer with more than 1000 channels that covers the S-, C-, and L-bands of optical fiber amplifiers. It was achieved by cascading a 2.5-THz-spaced arrayed-waveguide grating (AWG) with Gaussian passbands as a primary filter and ten 25-GHz-spaced 1/spl times/200 AWGs as secondary filters in a tandem configuration.
Keywords :
demultiplexing equipment; diffraction gratings; multiplexing equipment; optical arrays; optical crosstalk; optical design techniques; optical fibre amplifiers; optical losses; optical waveguide filters; telecommunication channels; C-band; Gaussian passbands; L-bands; S-band; THz-spaced arrayed-waveguide grating; arrayed-waveguide grating; channels; low-loss multi/demultiplexer; optical fiber amplifiers; primary filter; secondary filters; tandem configuration; tandem multi/demultiplexer; Arrayed waveguide gratings; Information filtering; Information filters; L-band; Optical arrays; Optical fiber amplifiers; Optical fiber filters; Optical filters; Passband; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
