Title :
A New Design of Wavelength Division Multiplexing Filter
Author :
Kobayashi, Y. ; Wada, K.
Author_Institution :
Dept. of Mater. Eng., Tokyo Univ.
Abstract :
In the present optical fiber network, arrayed waveguide gratings (AWGs) have been employed in the dense wavelength division multiplexing (DWDM) because of its wide free spectral range (FSR) and narrow channel spacing. However, in the high refractive index contrast (HIC) system used in Si photonics, AWGs can be very lossy because of potential reflection between the slab regions and waveguides. To avoid this risk, we replaced the slab structure in the AWGs with the directional couplers. The performance of the device was simulated by the 2-dimensional-finite-difference-time-domain (2D-FDTD) method
Keywords :
arrayed waveguide gratings; channel spacing; finite difference time-domain analysis; integrated optics; optical directional couplers; optical fibre couplers; optical fibre filters; optical fibre networks; wavelength division multiplexing; 2-dimensional-finite-difference-time-domain method; AWG; DWDM; FDTD; arrayed waveguide gratings; dense wavelength division multiplexing filter; directional couplers; free spectral range; high refractive index contrast system; narrow channel spacing; optical fiber network; Arrayed waveguide gratings; Channel spacing; Fiber gratings; Optical arrays; Optical fiber filters; Optical fiber networks; Optical waveguides; Refractive index; Slabs; Wavelength division multiplexing;
Conference_Titel :
Group IV Photonics, 2006. 3rd IEEE International Conference on
Conference_Location :
Ottawa, Ont.
Print_ISBN :
1-4244-0096-1
DOI :
10.1109/GROUP4.2006.1708178
