Title :
Passband-width broadening design for WDM filter with lattice-form interleave filter and arrayed-waveguide gratings
Author :
Oguma, M. ; Kitoh, Tsutomu ; Jinguji, K. ; Shibata, T. ; Himeno, A. ; Hibino, Y.
Author_Institution :
NTT Photonic Labs., NTT Corp., Ibaraki, Japan
fDate :
3/1/2002 12:00:00 AM
Abstract :
We successfully fabricated a high channel count and flat-top wavelength-division-multiplexing filter by integrating a waveguide-type interleave filter and two arrayed-waveguide grating on one chip. Optimizing the loss ripple of the interleave filter, we realized a 50-GHz spacing, 102-channel ports, a 1-dB passband of 30 GHz, and an insertion loss of 4 dB.
Keywords :
band-pass filters; diffraction gratings; integrated optics; optical arrays; optical communication equipment; optical design techniques; optical fabrication; optical losses; optical waveguide filters; wavelength division multiplexing; 102-channel ports; 30 GHz; 4 dB; 50-GHz spacing; WDM filter; arrayed-waveguide gratings; flat-top wavelength-division-multiplexing filter; high channel count; insertion loss; integration; lattice-form interleave filter; loss ripple; one chip; passband; passband-width broadening design; waveguide-type interleave filter; Arrayed waveguide gratings; Insertion loss; Integrated optics; Optical fiber filters; Optical losses; Optical waveguides; Passband; Phased arrays; Propagation losses; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
