Abstract
We investigate the performance limits and the impact on the system margin of 10-Gb/s duobinary modulations due to reducing the bandwidths of single-arm Mach-Zehnder (MZ) modulators in a 10-Gb/s duobinary transmitter through numerical simulation. In addition to that, the individual and combined effects of dc-bias offset ratio to switching voltage and residual chirp due to the asymmetry of modulators on the system performance have been studied using reduced bandwidth single-arm MZ modulators. Our results suggest that with a single-arm MZ modulator of bandwidth reduced to 5 GHz and a duobinary filter of 2.6-GHz bandwidth, the sensitivity penalty can be maintained within 2 dB over a 200-km span of uncompensated single-mode fiber referred to that at 0 km of ideal duobinary transmitters. In this case, the allowable range of the residual-chirp parameter is to be from -0.1 to +0.1 with dc-bias offset ratio of less than ±2.5%.
| Original language | English |
|---|---|
| Pages (from-to) | 479-481 |
| Number of pages | 3 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 15 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2003 Mar 1 |
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Keywords
- Duobinary modulation
- Modulation format
- Optical communication
- Optical transmitter
- Simulation
- Single-arm Mach-Zehnder (MZ) modulator
- System analysis and design
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Physics and Astronomy (miscellaneous)
- Atomic and Molecular Physics, and Optics
Cite this
Performance limits of 10-Gb/s optical duobinary transmissions using reduced bandwidth single-arm Mach-Zehnder modulators considering residual chirp and dc-bias offset. / Won, Shinhee; Lee, Jae Hoon; Kim, Yonghoon; Kim, Seongha; Jeong, Jichai.
In: IEEE Photonics Technology Letters, Vol. 15, No. 3, 01.03.2003, p. 479-481.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Performance limits of 10-Gb/s optical duobinary transmissions using reduced bandwidth single-arm Mach-Zehnder modulators considering residual chirp and dc-bias offset
AU - Won, Shinhee
AU - Lee, Jae Hoon
AU - Kim, Yonghoon
AU - Kim, Seongha
AU - Jeong, Jichai
PY - 2003/3/1
Y1 - 2003/3/1
N2 - We investigate the performance limits and the impact on the system margin of 10-Gb/s duobinary modulations due to reducing the bandwidths of single-arm Mach-Zehnder (MZ) modulators in a 10-Gb/s duobinary transmitter through numerical simulation. In addition to that, the individual and combined effects of dc-bias offset ratio to switching voltage and residual chirp due to the asymmetry of modulators on the system performance have been studied using reduced bandwidth single-arm MZ modulators. Our results suggest that with a single-arm MZ modulator of bandwidth reduced to 5 GHz and a duobinary filter of 2.6-GHz bandwidth, the sensitivity penalty can be maintained within 2 dB over a 200-km span of uncompensated single-mode fiber referred to that at 0 km of ideal duobinary transmitters. In this case, the allowable range of the residual-chirp parameter is to be from -0.1 to +0.1 with dc-bias offset ratio of less than ±2.5%.
AB - We investigate the performance limits and the impact on the system margin of 10-Gb/s duobinary modulations due to reducing the bandwidths of single-arm Mach-Zehnder (MZ) modulators in a 10-Gb/s duobinary transmitter through numerical simulation. In addition to that, the individual and combined effects of dc-bias offset ratio to switching voltage and residual chirp due to the asymmetry of modulators on the system performance have been studied using reduced bandwidth single-arm MZ modulators. Our results suggest that with a single-arm MZ modulator of bandwidth reduced to 5 GHz and a duobinary filter of 2.6-GHz bandwidth, the sensitivity penalty can be maintained within 2 dB over a 200-km span of uncompensated single-mode fiber referred to that at 0 km of ideal duobinary transmitters. In this case, the allowable range of the residual-chirp parameter is to be from -0.1 to +0.1 with dc-bias offset ratio of less than ±2.5%.
KW - Duobinary modulation
KW - Modulation format
KW - Optical communication
KW - Optical transmitter
KW - Simulation
KW - Single-arm Mach-Zehnder (MZ) modulator
KW - System analysis and design
UR - http://www.scopus.com/inward/record.url?scp=0037340902&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0037340902&partnerID=8YFLogxK
U2 - 10.1109/LPT.2002.807950
DO - 10.1109/LPT.2002.807950
M3 - Article
AN - SCOPUS:0037340902
VL - 15
SP - 479
EP - 481
JO - IEEE Photonics Technology Letters
JF - IEEE Photonics Technology Letters
SN - 1041-1135
IS - 3
ER -