40 Gbps 100-km SSMF VSB-IMDD OFDM transmission experiment based on FBG filter
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- 作者：Cheng Ju ; jucheng719@bupt.edu.cn" class="auth_mail ; Pengfei Yang ; Xue Chen ; Zhiguo Zhang ; Na Liu
- 关键词：Vestigial-sideband ; Intensity modulation ; Direct detection ; Subcarrier to subcarrier intermixing interference
- 刊名：Optics Communications
- 出版年：15 October 2014
- 年：2014
- 卷：329
- 期：Complete
- 页码：184-189
- 全文大小：874 K
文摘
This work studies the transmission performance of vestigial-sideband (VSB)–IMDD OFDM system by theoretical analysis and numerical simulation. The analysis shows that the detrimental effect of dispersion-induced power fading can be effectively suppressed. The presence of positive and negative chirp of modulator will increase the dispersion-, chirp- and VSB optical filter-induced subcarrier to subcarrier intermixing interference (SSII), which significantly restricts transmission performance. Relatively lower order Gaussian optical filter has almost the same performance with ideal rectangular filter over 100-km SMF transmission and have better performance in less than 60-km transmission. Furthermore, we successfully transmit a 40 Gbps, 16QAM, MZM-based VSB-IMDD OFDM signal through 100-km of uncompensated standard single mode fiber (SSMF) by using an economical FBG optical filter. The experimental results show that available bandwidth has been extended up to 10 GHz after 100-km SSMF transmission.