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Monolithic InP receiver chip with a variable optical attenuator for colorless WDM detection

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

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IEEE Photonics Technology Letters 26 (2014), No.4, pp.349-351
ISSN: 1041-1135
English
Journal Article
Fraunhofer HHI ()

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.

: http://publica.fraunhofer.de/documents/N-281956.html