Chinese Optics Letters, 2015, 13 (8): 080602, Published Online: Sep. 14, 2018  

56 Gb/s direct-detection polarization multiplexing multi-band CAP transmission Download: 858次

Author Affiliations
1 Key Laboratory for Information Science of Electromagnetic Waves, Ministry of Education, Department of Communication Science and Engineering, Fudan University, Shanghai 200433, China
2 National Engineering Research Center for Broadband Networks and Applications, Shanghai 200433, China
Abstract
Carrierless amplitude and phase (CAP) modulation is generating increasing interest for short-reach optical communications. Polarization multiplexing (PolMux) is a good way to improve the CAP system’s data rate further with the limited bandwidth of electrical devices. In this Letter, we experimentally demonstrate a 56 Gb/s direct-detection PolMux CAP system over a 15 km fiber link for the first time, to our best knowledge. Two-band CAP modulation with different modulated orders for each band is employed. An optical filter at the receiver is utilized to realize the polarization separation. No extra digital signal processing for polarization-dependent distortion is required.

Zhixin Wang, Li Tao, Yiguang Wang, Nan Chi. 56 Gb/s direct-detection polarization multiplexing multi-band CAP transmission[J]. Chinese Optics Letters, 2015, 13(8): 080602.

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