title: Monolithic InP receiver chip with a 90° hybrid and 56 GHz balanced photodiodes.
abstract: We demonstrate a monolithically integrated quadrature coherent receiver photonic integrated circuit on an InP substrate with a 90° optical hybrid and two balanced 56 GHz pin-photodetectors on chip level and as a packaged device. The presented devices enable the use of 56/64 Gbaud dual polarisation 16-QAM signals either in the C-band or the L-band.
authors.affiliation: Fraunhofer Heinrich-Hertz-Institute, Einsteinufer 37, 10587 Berlin, Germany. patrick.runge@hhi.fraunhofer.de
authors.forename: Patrick
authors.initials: P
authors.lastname: Runge
authors.forename: Stefan
authors.initials: S
authors.lastname: Schubert
authors.forename: Angela
authors.initials: A
authors.lastname: Seeger
authors.forename: Klemens
authors.initials: K
authors.lastname: Janiak
authors.forename: Jens
authors.initials: J
authors.lastname: Stephan
authors.forename: Dirk
authors.initials: D
authors.lastname: Trommer
authors.forename: Patrick
authors.initials: P
authors.lastname: Domburg
authors.forename: Mads Lønstrup
authors.initials: ML
authors.lastname: Nielsen