Title :
30 Gbit/s 64-QAM transmission over 60 km SSMF using phase-noise cancelling technique and ISI suppression based on electronic digital processing
Author :
Nakamura, Mitsutoshi ; Kamio, Yukiyoshi ; Miyazaki, Toshimasa
Author_Institution :
Nat. Inst. of Inf. & Commun. Technol. (NICT), Koganei, Japan
Abstract :
30 Gbit/s (5 Gsymbol/s) 64-QAM real-time transmission over 60 km SSMF without any dispersion compensation has been experimentally demonstrated for the first time. Intersymbol interference caused by the limited frequency bandwidth of electrical components in the transmitter and receiver was compensated using a pre-equalisation technique based on electronic digital processing. Phase-noise cancelling based on a polarisation-multiplexed pilot-carrier was employed, allowing use of a light source with a linewidth as large as 200 kHz. A bit error rate of 10-4 was achieved even after SSMF transmission without using error correction.
Keywords :
equalisers; error statistics; interference suppression; intersymbol interference; laser cavity resonators; multiplexing; optical fibre communication; optical fibre polarisation; optical receivers; optical transmitters; phase noise; quadrature amplitude modulation; semiconductor lasers; ISI suppression; QAM transmission; SSMF transmission; bit error rate; bit rate 30 Gbit/s; distance 60 km; external cavity laser diode; intersymbol interference suppression; light source; optical receiver; optical transmitter; phase-noise cancelling technique; polarisation-multiplexed pilot-carrier; pre-equalisation technique; quadrature amplitude modulation; standard single mode fiber;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2009.2395
