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Asymmetry Effects on Optical Duobinary Transmitters
- Authors
- 이동수; Hyun-Gue Huh
- Issue Date
- 2008
- Publisher
- 한국조명.전기설비학회
- Keywords
- Optical Duobinary Transmitter; Driving Voltage Ratios; Mach-Zehnder(MZ) Modulator; Low Pass Filter(LPF); Eye Diagram; Bit Error Rate(BER)
- Citation
- 조명.전기설비학회논문지, v.22, no.3, pp 1 - 7
- Pages
- 7
- Journal Title
- 조명.전기설비학회논문지
- Volume
- 22
- Number
- 3
- Start Page
- 1
- End Page
- 7
- ISSN
- 1229-4691
- 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.
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