Four-Channel Integrated Receiver with a Built-In Spatial Demultiplexer Optics for 100Gb/s Ethernet

概要

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We have succeeded in demonstrating high-performance four-channel 25Gb/s integrated receiver for 100Gb/s Ethernet with a built-in spatial Demux optics and an integrated PD array. All components which configure to the Demux optics adhered to a prism. Because of the shaping accuracy for prism, the insertion loss was able to suppress to 0.8dB with small size. The connection point of the package for high speed electrical signals was improved to decrease the transmission loss. The small size of 12mm × 17mm × 7mm compact package with a side-wall electrical connector has been achieved, which is compatible with the assembly in CFP2 form-factor. We observed the sensitivity at average power of -12.1dBm and the power penalty of sensitivity due to the crosstalk of less than 0.1dB.