Title :
Ultra-compact 56-Gb/s QPSK and 80-Gb/s 16-QAM silicon coherent receiver free of waveguide crossings
Author :
Gambini, Fabrizio ; Meloni, Gianluca ; Faralli, Stefano ; Contestabile, G. ; Poti, Luca ; Klamkin, Jonathan
Author_Institution :
Scuola Superiore Sant´Anna, Pisa, Italy
Abstract :
A monolithically-integrated silicon coherent receiver is reported for up to 56-Gb/s QPSK and 80-Gb/s 16-QAM signals. The receiver incorporates balanced germanium photodiodes, on-chip capacitors, and a novel hybrid design free of waveguide crossings.
Keywords :
capacitors; elemental semiconductors; germanium; integrated optoelectronics; light coherence; monolithic integrated circuits; optical design techniques; optical receivers; photodiodes; quadrature amplitude modulation; quadrature phase shift keying; silicon; 16-QAM silicon coherent receiver; Si; balanced germanium photodiodes; bit rate 56 Gbit/s; bit rate 80 Gbit/s; hybrid design; monolithically-integrated silicon coherent receiver; on-chip capacitors; ultracompact QPSK; Couplers; Optical noise; Optical waveguides; Phase shift keying; Receivers; Signal to noise ratio; Silicon;
Conference_Titel :
Group IV Photonics (GFP), 2014 IEEE 11th International Conference on
Conference_Location :
Paris
Print_ISBN :
978-1-4799-2282-6
DOI :
10.1109/Group4.2014.6961980
