[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5207/JIEIE.2008.22.3.001

Asymmetry Effects on Optical Duobinary Transmitters

Lee, Dong-Soo (Division of IT, Kimpo College)
Huh, Hyun-Gue (Kumoh National Institute of Technology)

Publication Information

Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.22, no.3, 2008 , pp. 1-7 More about this Journal

Abstract

We have theoretically investigated the asymmetry effects on 10[Gb/s] optical duobinary transmitters from the viewpoint of the driving voltage ratios by computer simulations. For driving voltage ratios(=driving voltage/switching voltage) with smaller than 100[%], the transmission performance has been greatly affected by the asymmetry of the bandwidth of LPFs than that of the Mach-Zehnder Modulator driving voltage. On the other hand, for driving voltage ratios with 100[%], the transmission performance has been degraded by the asymmetry of the driving voltage and is not sensitive to that of the bandwidth of LPFs. For the transmission performance within 1[dB] power penalty under the asymmetry condition, the driving voltage ratio with 100[%] has performed better than the low driving voltage ratios.

Keywords

Optical Duobinary Transmitter; Driving Voltage Ratios; Mach-Zehnder(MZ) Modulator; Low Pass Filter(LPF); Eye Diagram; Bit Error Rate(BER);

Citations & Related Records

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