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Design trade-offs for silicon-on-insulator-based AWGs for (de)multiplexer applications

机译:(解)复用器应用中基于绝缘体上硅的AWG的设计折衷

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摘要

We demonstrate compact silicon-on-insulator-based arrayed waveguide gratings (AWGs) for (de)multiplexing applications with a large free spectral range (FSR). The large FSR is obtained by reducing the arm aperture pitch without changing the device footprint. We demonstrate 4 × 100 GHz, 8 × 250 GHz, and 12 × 400 GHz AWGs with FSRs of 6.9, 24.8, and 69.8, respectively. We measured an insertion loss from -2.45 dB for high to -0.53 dB for low-resolution AWGs. The crosstalk varies between 17.12 and 21.37 dB. The bandwidth remains nearly constant, and the nonuniformity between the center wavelength channel and the outer wavelength channel improves with larger FSR values.
机译:我们演示了紧凑的基于绝缘体上硅的阵列波导光栅(AWG),用于具有大自由光谱范围(FSR)的(解复用)应用。通过减小臂孔间距而无需改变设备尺寸即可获得较大的FSR。我们展示了FSR分别为6.9、24.8和69.8的4×100 GHz,8×250 GHz和12×400 GHz AWG。我们测得的插入损耗从高的-2.45 dB到低分辨率的AWG的-0.53 dB。串扰在17.12和21.37 dB之间变化。带宽几乎保持恒定,并且中心波长通道和外波长通道之间的不均匀性随FSR值的增大而改善。

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