Analysis of return-to-zero-on-off-keying over absolute polar duty cycle division multiplexing in dispersive transmission medium

Malekmohammadi, A. and Abdullah, M.K. and Mahdiraji, G.A. and Abas, A.F. and Mokhtar, M. and Rasid, M.F.A. and Basir, S.M. (2009) Analysis of return-to-zero-on-off-keying over absolute polar duty cycle division multiplexing in dispersive transmission medium. IET Optoelectronics, 3 (4). pp. 197-206. ISSN 1751-8768

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Abstract

We propose and investigate a technique to reduce the spectral width as well as increase the tolerance to chromatic dispersion (CD) using improved return-to-zero (RZ) on-off-keying (OOK) over absolute polar duty cycle division multiplexing (AP-DCDM) technique. The proposed channel multiplexing and demultiplexing are performed electrically using only one modulator for n number of users, which is very economical. It is demonstrated that the spectral width occupied by 30 Gb/s RZ-OOK without AP-DCDM measured at 220 dB from the peak power is around 105 GHz whereas, this value can be reduced to around 64 GHz for 30 Gb/s RZ-OOK over AP-DCDM. This amount of saving in the spectral width is a significant achievement, which leads to better tolerance to CD. Its tolerance to CD is in the range of +/- 109 and +/- 155ps/nm, for the worst and the best users, respectively. These values are higher than that of 30 Gb/s conventional RZ-OOK, which is around +/- 86.5 ps/nm. At 120 Gb/s RZ-OOK over AP-DCDM ( the worst user) has pre-amplified receiver sensitivity and optical signal to noise ratio (OSNR) of 222.5 dBm and 28.57 dB, respectively.

Item Type: Article
Additional Information: 475XL Times Cited:1 Cited References Count:13
Uncontrolled Keywords: Signals
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: 17 Jun 2013 06:28
Last Modified: 02 Jan 2019 02:58
URI: http://eprints.um.edu.my/id/eprint/6215

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