Experimental demonstration of 10 Gb/s multilevel carrier-less amplitude and phase modulation for short range optical communication systems

Li Tao, Yiguang Wang, Yuliang Gao, Pak Tao Lau, Nan Chi, Chao Lu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

104 Citations (Scopus)


Carrier-less amplitude and phase (CAP) modulation can be a good candidate for short range optical communications for considerable computational complexity reduction and simple system structure. In this paper, a detailed investigation on the digital filters in CAP modulation system is presented. An adaptive equalizer based on cascaded multimodulus algorithm (CMMA) is used for the demodulation at the receiver. The impact of digital filter taps on system performance is investigated through comprehensive simulations and a 10 Gb/s CAP16 modulation system is demonstrated experimentally. The BER performance for different length of fiber link is measured. Compared with back-to-back (BTB) transmissions, 2 dB and 3.5 dB receiver power penalty are observed at BER of 10-3 for 20 km and 40 km fiber link respectively. It clearly demonstrates the feasibility of the CAP16 modulation for the short range transmission systems.
Original languageEnglish
Pages (from-to)6459-6465
Number of pages7
JournalOptics Express
Issue number5
Publication statusPublished - 11 Mar 2013

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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