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Experimental investigations of 3-D-/4-D-CAP modulation with directly modulated VCSELs

Othman, Maisara and Xu, Zhang and Lei, Deng and Wieckowski, Marcin and Jensen, Jesper Bevensee and Monroy, Idelfonso Tafur (2012) Experimental investigations of 3-D-/4-D-CAP modulation with directly modulated VCSELs. IEEE Photonics Technology Letters, 24 (22). pp. 2009-2012. ISSN 1041-1135

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Abstract

In this letter, we present experimental investigations of multidimensional multilevel carrierless amplitude phase (CAP) modulation with directly modulated vertical cavity surfaceemitting lasers. The signals are transmitted over 20 km of standard single-mode fiber (SSMF). For multilevel 3-D-CAP, bit rates of 468.75 and 937.5 Mb/s are achieved at two levels/dimension and four levels/dimension, respectively. For 4-D-CAP, bit rates of 416.67 and 833.3 Mb/s are achieved at two levels/dimension and four levels/dimension, respectively. For all signals, a bit-error rate below the forward error correction limit of 2.8 × 10−3 for error-free reception is achieved after 20 km of SSMF transmission. Spectral efficiencies of 2.68 and 2.08 b/s/Hz are reported for 3-D-CAP and 4-D-CAP, respectively. We believe that multidimensional modulation formats represent an attractive solution for providing more flexibility for optical fiber systems.

Item Type: Article
Uncontrolled Keywords: carrierless amplitude and phase; multilevel multidimensional modulation; vertical-cavity surface-emitting laser (VCSEL) optical communication
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101-5865 Telecommunication. Telegraph.
Divisions: Faculty of Electrical and Electronic Engineering > Department of Communication Engineering
Depositing User: Normajihan Abd. Rahman
Date Deposited: 22 Dec 2014 01:43
Last Modified: 22 Dec 2014 01:43
URI: http://eprints.uthm.edu.my/id/eprint/6096
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