2004, Volume 6, Issue 2
Strategic Study of CAE >> 2004, Volume 6, Issue 2
GaAlAs/GaAs Planar Waveguide Filters Based on Cascade Rectangular Resonators
1. Research Laboratory of photonics and optical communications , Southeast University , Nanjing 210096 China
2. Nanjing Institute of Electron Devices , Nanjing 210016 , China
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Abstract
Based on the electromagnetic model for four-port resonant filter, the optical characteristics of several filters with rectangular cascade resonators have been numerically simulated by utilizing two-dimensional FDTD method. The relationship between the number of cascade resonators and the filtering features is analyzed. The narrow-band filter with four cascade resonators implemented on GaAlAs/GaAs planar waveguide is designed and fabricated. The experiment result shows the half-width of filtering spectrum for the chip is about 10 nm, which coincides well with that of the simulation.
Keywords
WDM ; planar lightwave circuits ; optical filters ; resonator ; FDTD
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