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2014
Journal Article
Titel
Monolithic InP receiver chip with a variable optical attenuator for colorless WDM detection
Abstract
We demonstrate a monolithically integrated quadrature coherent receiver photonic integrated circuit (PIC) on an InP substrate. The PIC comprises a 90 degrees optical hybrid, a variable optical attenuator (VOA), and four RF photodetectors. With a dynamic range of 25dB, the VOA enables the usage of the receiver PIC for colorless WDM detection.