Realization of high capacity transmission in fiber optic communication systems using absolute polar duty cycle division multiplexing (AP-DCDM) technique

Malekmohammadi, A. and Mahdiraji, G.A. and Abas, A.F. and Abdullah, M.K. and Mokhtar, M. and Rasid, M.F.A. (2009) Realization of high capacity transmission in fiber optic communication systems using absolute polar duty cycle division multiplexing (AP-DCDM) technique. Optical Fiber Technology, 15 (4). pp. 337-343. ISSN 1068-5200

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Abstract

An electrical multiplexing technique, namely Absolute Polar Duty Cycle Division Multiplexing (AP-DCDM) is reported for high-speed optical fiber communication systems. It is demonstrated that 40 Gb/s (4 x 10 Gb/s) AP-DCDM system shows a clear advantage over conventional 40 Gb/s RZ-OOK with 50 duty cycle in terms of dispersion tolerance and spectral efficiency. At 40 Gb/s its tolerance to chromatic dispersion (CD) is 124 ps/nm and 194 ps/nm for the worst and the best user, respectively. These values are higher than that of 40 Gb/s RZ-OOK, which is around 100 ps/nm. The spectral efficiency, receiver sensitivity and OSNR for different number of channels are discussed. Comparison against other modulation formats namely duobinary, Non-Return-to-Zero (NRZ)-OOK and RZ-Differential Quadrature Phase-Shift Keying (RZ-DQPSK) at 40 Gb/s are made. It is shown that AP-DCDM has the best receiver sensitivity (-32 dBm) and better CD tolerance (+/- 200 ps/nm) than NRZ-OOK and RZ-DQPSK. In reference to duobinary, AP-DCDM has better receiver sensitivity but worse dispersion tolerance.

Item Type: Article
Additional Information: 555AJ Times Cited:3 Cited References Count:20
Uncontrolled Keywords: Optical communication, multiplexing, chromatic dispersion, duty cycle, networks, amplification.
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 18 Jun 2013 06:57
Last Modified: 18 Jun 2013 06:57
URI: http://eprints.um.edu.my/id/eprint/6214

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