Title :
Offset QPSK for 112 Gb/s coherent optical links
Author :
Detwiler, Thomas F. ; Stark, Andrew J. ; Hsueh, Yu-Ting ; Searcy, Steven M. ; Lingle, Robert ; Basch, Bert E. ; Chang, Gee-Kung ; Ralph, Stephen E.
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
Offset QPSK is a linear modulation format exhibiting nearly constant envelop and hence may avoid nonlinear refraction effects and thus enable higher launch power and a commensurate increase in reach. We experimentally demonstrate >2dB advantage for OQPSK compared to QPSK for multi span coherent optical links using TrueWave® RS fiber.
Keywords :
optical links; quadrature phase shift keying; bit rate 112 Gbit/s; coherent optical links; linear modulation format; nonlinear refraction effects; offset QPSK; Demodulation; Optical fiber dispersion; Optical fiber networks; Optical fiber polarization; Phase shift keying; Receivers;
Conference_Titel :
Photonics Society Summer Topical Meeting Series, 2010 IEEE
Conference_Location :
Playa del Carmen
Print_ISBN :
978-1-4244-3730-6
Electronic_ISBN :
978-1-4244-3731-3
DOI :
10.1109/PHOSST.2010.5553713
