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 |