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Monolithic InP receiver chip with a 90 degrees hybrid and 56 GHz balanced photodiodes

: Runge, P.; Schubert, S.; Seeger, A.; Janiak, K.; Stephan, J.; Trommer, D.; Domburg, P.; Nielsen, M.L.

Postprint (PDF; )

Optics Express 20 (2012), No.26, pp.B250-B255
ISSN: 1094-4087
Journal Article, Electronic Publication
Fraunhofer HHI ()

We demonstrate a monolithically integrated quadrature coherent receiver photonic integrated curcuit on an InP substrate with a 90 degrees 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.