紧凑低损耗粗波分解复用芯片

Compact and Low Loss Coarse Wavelength Division Demultiplexer Chip

数据中心光互连正朝着高速方向发展。针对数据中心光互连过程,采用折射率差为1.5%的石英基二氧化硅光波导,设计并制备了光电集成的小型化、低损耗、小输出模场的四通道粗波分解复用芯片,该芯片满足高速数据中心200 Gbit·s^(-1)/400 Gbit·s^(-1)的传输速率要求,最小插入损耗小于1.07 dB,1 dB带宽大于13.7 nm,3 dB带宽大于16.1 nm,偏振相关损耗小于0.08 dB,相邻串扰大于24 dB,非相邻串扰大于30 dB。所设计的芯片完全满足高速数据中心光互连的波分复用芯片商用要求。

The optical interconnection speed of data center is developing rapidly in recent years.As for the optical interconnection of data center,a compact,low-loss,and small output mode field four-channel coarse wavelength division demultiplexer chip is designed and fabricated,which is using quartz-based silica optical waveguide with 1.5%refractive index difference.This chip can meet the transmission velocity requirement of 200 Gbit·s^(-1)/400 Gbit·s^(-1) for high-speed data center.The minimum insertion loss is less than 1.07 dB,the 1 dB bandwidth is larger than 13.7 nm and the 3 dB bandwidth is larger than 16.1 nm.The polarization-dependent loss is smaller than 0.08 dB,the adjacent crosstalk is larger than 24 dB,and the non-adjacent crosstalk is larger than 30 dB.The designed chip can fully meet the commercial requirements of a wavelength division demultiplexer chip for optical interconnect of high-speed data center.