Improved Phase Detection in On-Chip Refractometers

Christian Schweikert, Niklas Hoppe, Raik Elster, Wolfgang Vogel, Manfred Berroth

2021 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)（2021）

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摘要

An improved phase detection scheme for Mach-Zehnder and bimodal interferometers is presented. By using a 90° hybrid, always two outputs operate at a highly sensitive point and the phase-shift-unambiguousness is extended to a range of 2π. The phase detection is independent of mode attenuations and input power fluctuations.

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关键词

improved phase detection,on-chip

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