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Improving Fiber Optics Transmission Using Double Carrier Modulation / Differential Detection Technique (DCM/DiffD)

Abdullah M.K., and Naseer Abbas, and Abas A.F., (2003) Improving Fiber Optics Transmission Using Double Carrier Modulation / Differential Detection Technique (DCM/DiffD). Malaysian Journal of Science, 22 (2). pp. 97-103. ISSN 13943065

Full text not available from this repository.

Official URL: http://www.um.edu.my/FS/Index.htm

Affiliations

Universiti Putra Malaysia, Dept. of Computer and Communication System Engineering
Universiti Putra Malaysia, Dept. of Computer and Communication System Engineering
Universiti Putra Malaysia, Dept. of Computer and Communication System Engineering

Abstract

DCM/DiffD is proposed here as a new transmission and detection technique which provides longer transmission distance than the conventional technique. This technique uses amplitude subtraction between original data bits and their inversion to provide a simple dynamic decision making
scheme. The inverted data basically serve as the threshold in place of the conventional externally injected voltage. DCM/DiffD technique is shown here to double the eye opening and improves the performance significantly. BER of as good as 10⁻¹⁴ at STM-16 rate over 150 km transmission distance with 0 dBm transmit power is demonstrated in this report. The new technique also shows a much slower degradation with distance than that of the conventional IM/DD systems.

Item Type:Journal
Keywords:optical fiber transmission, optical modulation techniques and optical detection techniques
Subjects:Q Science, Computer Science
ID Code:1963

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