Title :
Reduction of inter-channel crosstalk using Mach-Zehnder type filter in digital/RF optical transmission link
Author :
Lee, S.H. ; Won, Y.-Y. ; Jung, H.-D. ; Han, S.-K.
Author_Institution :
Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea
Abstract :
An experimental demonstration and evaluation of a digital/RF WDM link system is presented, which transmits 622 Mbit/s digital data stream and 900 MHz RF carrier modulated by 44.74 Mbit/s over a singlemode fibre and then simultaneously detects these signals using a single photodiode. To reduce the crosstalk between adjacent channels, a novel suppression scheme employing Mach-Zehnder type filter (MZF) is proposed. The proposed cascade configuration results in the enhanced CNR and Q factors compared to other schemes which adopt the conventional filtering.
Keywords :
Q-factor; microwave photonics; optical crosstalk; optical fibre networks; photodiodes; telecommunication channels; wavelength division multiplexing; 44.74 Mbit/s; 622 Mbit/s; Mach-Zehnder type filter; Q factors; RF carrier modulated; adjacent channel crosstalk; cascade configuration; conventional filtering; digital data stream; digital/RF optical transmission link; inter-channel crosstalk; single photodiode; singlemode fibre; suppression scheme;
Journal_Title :
Optoelectronics, IEE Proceedings -
DOI :
10.1049/ip-opt:20045066
