Title :
Comparison of PAM and CAP Modulation Schemes for Data Transmission Over SI-POF
Author :
Kruglov, R. ; Loquai, S. ; Bunge, C.-A. ; Schueppert, Manuel ; Vinogradov, J. ; Ziemann, O.
Author_Institution :
Polymer Opt. Fiber Applic. Center, Univ. of Appl. Sci. Nuremberg, Nuremberg, Germany
Abstract :
An experimental comparison of multilevel modulation schemes for polymer optical fiber (POF) transmission systems is shown in this letter. The performance of a non-return-to-zero, pulse-amplitude modulation (PAM), and carrierless amplitude phase (CAP) modulation was tested under the different conditions, including various link lengths and fiber-coupled power. As an optical transmitter, the commercial laser diode operating at 655 nm was used. A maximum bit rate of 5 Gb/s over 50-m 1-mm step-index POF link was achieved with 16-CAP modulation format at +6 dBm fiber-coupled power and a bit-error ratio of 10-3. Over 100 m, a maximum bit rate of 3.4 Gb/s was realized with 4-PAM.
Keywords :
error statistics; optical fibre testing; optical links; optical modulation; optical polymers; optical transmitters; phase modulation; pulse amplitude modulation; semiconductor lasers; CAP modulation schemes; PAM modulation schemes; SI-POF; bit rate; bit rate 3.4 Gbit/s; bit rate 5 Gbit/s; bit-error ratio; carrier-less amplitude phase modulation; data transmission; distance 50 m; fiber-coupled power; laser diode; link length; multilevel modulation schemes; nonreturn-to-zero pulse-amplitude modulation; optical transmitter; polymer optical fiber transmission systems; size 1 mm; step-index POF link; wavelength 655 nm; Bandwidth; Bit error rate; Bit rate; Modulation; Optical fiber communication; Optical fibers; Optical signal processing; CAP; Interconnections; PAM; modulation; optical communication; polymer optical fiber (POF);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2013.2285289
