Title :
Band-divided receiver for optical wideband signal
Author :
Matsui, Masaki ; Kudo, Riichi ; Takatori, Yasushi ; Ishihara, Koichi ; Nakagawa, T. ; Mizoguchi, Masato ; Kobayashi, Takehiko ; Miyamoto, Yutaka
Author_Institution :
NTT Network Innovation Labs., NTT Corp., Yokosuka, Japan
Abstract :
A new receiver structure that alleviates the required sampling rate of analogue-to-digital converters for optical transmission is presented. The structure divides the received wideband signal into a number of narrowband signals with no guard band. A prototype of the band-divided receiver, which processes a 6 GHz-bandwidth received signal, is developed and experimentally evaluated in a real-time OFDM receiver. It is shown that a single-polarisation 12 Gbit/s OFDM signal can be demodulated using a 1.5 GS/s ADC.
Keywords :
OFDM modulation; analogue-digital conversion; optical receivers; GHz-bandwidth received signal; analogue-to-digital converters; band-divided receiver; bit rate 12 Gbit/s; frequency 6 GHz; narrowband signals; optical transmission; optical wideband signal; real-time OFDM receiver; receiver structure;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.0951
