Abstract

The 32-channel dense-wavelength-division multiplexer is composed of the artificial point and line defects in the cascade two-dimensional photonic crystal waveguide with square lattice. The point defect traps the photons propagating through the line defect and emits to free space by the resonant effect. The cascade structure could overcome the mini-stop-band effect and established a continuous-wavelength multiplexing characteristic. The wavelength spacing of 0.8nm (frequency spacing of 100GHz), the interchannel cross talk of approximately 21to32dB, and high quality factor Q of 12,500 were achieved through theoretical simulation. It would be a potential component in the application of ultra-high-speed and ultra-high-capacity optical communication and optical data processing systems.

© 2007 Optical Society of America

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