標題: Comparison of VSB PAM4 and OOK Signal in an EML-Based 80-km Transmission System
作者: Chen, Hsing-Yu
Lee, Jeffrey
Kaneda, Noriaki
Chen, Jyehong
Chen, Young-Kai
光電工程學系
Department of Photonics
關鍵字: Intensity modulation;amplitude shift keying;optical modulation format;optical interconnections
公開日期: 1-十二月-2017
摘要: A comparison between 51.84-Gb/s vestigial sideband 4-level pulse amplitude modulation (PAM4) and ON-OFF keying (OOK) signals at a transmission distance of 80 km is experimentally demonstrated for the first time. An electro-absorption modulated laser-based intensity-modulation and direct-detection 80-km transmission is achieved using both modulation formats without dispersion compensating fiber. The relative frequency between single sideband filter and signal is adjusted to find an optimized condition for both carrier to signal power ratio and sideband suppression ratio. The experimental results show that with linear equalization and without bandwidth limitation, the OOK signal has a 4-dB better sensitivity compared with PAM4 after 80-km standard single-mode fiber transmission.
URI: http://dx.doi.org/10.1109/LPT.2017.2763830
http://hdl.handle.net/11536/144029
ISSN: 1041-1135
DOI: 10.1109/LPT.2017.2763830
期刊: IEEE PHOTONICS TECHNOLOGY LETTERS
Volume: 29
起始頁: 2063
結束頁: 2066
顯示於類別:期刊論文