Title :
10-GHz-spaced 1010-channel tandem AWG filter consisting of one primary and ten secondary AWGs
Author :
Takada, K. ; Abe, M. ; Shibata, T. ; Okamoto, K.
Author_Institution :
NTT Photonics Labs., Ibaraki, Japan
fDate :
6/1/2001 12:00:00 AM
Abstract :
A very large channel-count arrayed waveguide grating (AWG) filter with more than 1000 channels is described. It was achieved by cascading a 1-THz-spaced flat-top 1/spl times/10 AWG as a primary filter and ten 10-GHz-spaced 1/spl times/160 AWGs as secondary filters in a tandem configuration. We achieved good adjacent and accumulated channel crosstalk values ranging from -32 to -25 dB and from -24 and -18 dB, respectively.
Keywords :
band-pass filters; demultiplexing equipment; diffraction gratings; interference filters; optical arrays; optical crosstalk; optical waveguides; wavelength division multiplexing; 1 THz; 1-THz-spaced flat-top 1 times 10 AWG; 10 GHz; 10-GHz-spaced 1010-channel tandem AWG filter; channel crosstalk values; one primary AWG; primary filter; secondary filters; tandem configuration; ten 10-GHz-spaced 1 times 160 AWGs; ten secondary AWG; very large channel-count arrayed waveguide grating filter; Arrayed waveguide gratings; Band pass filters; Interference; Optical arrays; Optical fiber filters; Optical filters; Optical waveguides; Passband; Phased arrays; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
