120° Hybrid for Bimodal Interferometers

Christian Schweikert,Niklas Hoppe,Wolfgang Vogel,Manfred Berroth

2022 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)（2022）

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摘要

An 120° hybrid for bimodal interferometers in the 220 nm silicon-on-insulator technology is presented. Three output signals enable an unambiguous phase detection over a 360°-range as well as a constant sensitivity. The length of the hybrid is only 190 μm with a simulated excess loss of 0.16 dB. Measurements combined with digital signal processing verify the functionality of a fabricated 120° hybrid.

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关键词

bimodal interferometers,nm silicon-on-insulator technology,output signals,unambiguous phase detection,constant sensitivity,simulated excess loss,digital signal processing,fabricated 120° hybrid,size 190.0 mum,noise figure 0.16 dB,wavelength 220.0 nm

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