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Analysis and optimization for a polymer cross-grid array of microring resonant wavelength multiplexers

机译：Analysis and optimization for a polymer cross-grid array of microring resonant wavelength multiplexers

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摘要

Based on formulas presented for the amplitude coupling ratio and the transfer function, transmission characteristics are analyzed and parameters are optimized for a polymer cross-grid array of microring resonant wavelength multiplexers around the central wavelength of 1.550918 (mu)m with wavelength spacing 1.6 nm. In the design of the device, by means of selecting a resonant order m(velence)95 and introducing a resonant order increment of adjacent filter elements (DELTA)m(velence)2, we increase the ring radius difference of adjacent filter elements (DELTA)R from 17 nm (for the case of (DELTA)m(velence)0) to 337 nm. Calculated results show that the 3-dB bandwidth is about 0.2 nm, the ratio between the - 1 - and - 10-dB bandwidths is about 0.22, the insertion loss is less than 0.5 dB, and crosstalk is below -39 dB for each of the eight horizontal output channels.

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