Sources of Nonlinearity in Phase Noise of MUTC Photodetectors at Comb-Line Frequencies

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2024_IPC_PD_Nonlinearity.pdf (919.5 KB)

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https://userpages.cs.umbc.edu/simsek/cps/2024_IPC_PD_Nonlinearity.pdf

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UMBC Computer Science and Electrical Engineering Department
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https://orcid.org/0000-0001-9075-7071
 https://orcid.org/0000-0003-0269-8433
 https://orcid.org/0000-0002-5002-1657

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journal articles
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UMBC Optical Fiber Communications Laboratory

Abstract

We calculate the phase noise of two high current modified uni-traveling carrier (MUTC) photodetectors at the first 100 comb-line frequencies. We observe a non-monotonic increase of phase noise. We investigate the underlying physics. Insights gained inform MUTC photodetector design and optimization for frequency-comb applications.