Title :
InP DHBT Very High Speed Power-DACs for Spectrally Efficient Optical Transmission Systems
Author :
Godin, J. ; Konczykowska, A. ; Dupuy, J.-Y. ; Jorge, F. ; Riet, M. ; Moulu, J. ; Nodjiadjim, V. ; Berdaguer, P. ; Blache, F. ; Gnauck, A.
Author_Institution :
Bell Labs., CEA, Marcoussis, France
Abstract :
This paper reports on very high speed large swing digital-to-analog converter (DAC) suiting the generation of spectrally efficient optical transmission signals. 2-bit and 3-bit DACS with up to 4 Vpp swing, operating up to 50 GBaud, have been fabricated using our InP DHBT technology (FT ~280 GHz, FMAX ~270 GHz, BVCE0 ~5 V). These chips have been packaged and used to generate 16- and 64-QAM signals in optical transmission experiments at various bitrates.
Keywords :
digital-analogue conversion; electro-optical modulation; heterojunction bipolar transistors; indium compounds; light transmission; quadrature amplitude modulation; 16-QAM signal; 64-QAM signal; DHBT technology; InP; electro-optic modulator; optical transmission system; very high large swing speed power-DAC; very high speed large swing digital-to-analog converter; word length 2 bit; word length 3 bit; Indium phosphide; Optical crosstalk; Optical device fabrication; Optical modulation; Optical polarization; Optical transmitters;
Conference_Titel :
Compound Semiconductor Integrated Circuit Symposium (CSICS), 2011 IEEE
Conference_Location :
Waikoloa, HI
Print_ISBN :
978-1-61284-711-5
Electronic_ISBN :
1550-8781
DOI :
10.1109/CSICS.2011.6062439
