Abstract
We have experimentally and theoretically investigated the transmission performance of 10-Gb/s electroabsorption modulated lasers (EMLs) due to the overshoot of optical pulses. When a highly negative bias voltage is applied to EMLs, the overshoot becomes larger due to nonlinear transfer curves of EMLs. In order to further understand the overshoot effect of optical pulses from EMLs on transmission performance, we propose a novel and simple EML model based on the frequency response (magnitude and phase) and the transfer curves (P-V and α-V) of EMLs. Although the model does not solve the rate equations and the wave equations, it can accurately predict output pulse shapes and the frequency chirp as well as the transmission performance with reducing simulation time. Using the EML model, we can calculate the overshoot and dispersion power penalty due to modulation bandwidth and group delay difference in 10-Gb/s EMLs. Our results suggest that the overshoot should be considered to accurately predict the transmission performance of 10-Gb/s EMLs.
| Original language | English |
|---|---|
| Pages (from-to) | 643-645 |
| Number of pages | 3 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 15 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2003 May 1 |
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Keywords
- Chirp modulation
- Digital modulation
- Electroabsorption
- Optical fiber communications
- Optoelectronic devices
- Simulation
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Physics and Astronomy (miscellaneous)
- Atomic and Molecular Physics, and Optics
Cite this
Novel and simple model of 10-Gb/s electroabsorption modulated lasers and its experimental validation of transmission performance due to overshoot of optical signals. / Kim, Yongyoo; Nam, Seungki; Park, Soonkyu; Lee, Sungwon; Jang, Donghoon; Kang, H. S.; Jeong, Jichai.
In: IEEE Photonics Technology Letters, Vol. 15, No. 5, 01.05.2003, p. 643-645.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Novel and simple model of 10-Gb/s electroabsorption modulated lasers and its experimental validation of transmission performance due to overshoot of optical signals
AU - Kim, Yongyoo
AU - Nam, Seungki
AU - Park, Soonkyu
AU - Lee, Sungwon
AU - Jang, Donghoon
AU - Kang, H. S.
AU - Jeong, Jichai
PY - 2003/5/1
Y1 - 2003/5/1
N2 - We have experimentally and theoretically investigated the transmission performance of 10-Gb/s electroabsorption modulated lasers (EMLs) due to the overshoot of optical pulses. When a highly negative bias voltage is applied to EMLs, the overshoot becomes larger due to nonlinear transfer curves of EMLs. In order to further understand the overshoot effect of optical pulses from EMLs on transmission performance, we propose a novel and simple EML model based on the frequency response (magnitude and phase) and the transfer curves (P-V and α-V) of EMLs. Although the model does not solve the rate equations and the wave equations, it can accurately predict output pulse shapes and the frequency chirp as well as the transmission performance with reducing simulation time. Using the EML model, we can calculate the overshoot and dispersion power penalty due to modulation bandwidth and group delay difference in 10-Gb/s EMLs. Our results suggest that the overshoot should be considered to accurately predict the transmission performance of 10-Gb/s EMLs.
AB - We have experimentally and theoretically investigated the transmission performance of 10-Gb/s electroabsorption modulated lasers (EMLs) due to the overshoot of optical pulses. When a highly negative bias voltage is applied to EMLs, the overshoot becomes larger due to nonlinear transfer curves of EMLs. In order to further understand the overshoot effect of optical pulses from EMLs on transmission performance, we propose a novel and simple EML model based on the frequency response (magnitude and phase) and the transfer curves (P-V and α-V) of EMLs. Although the model does not solve the rate equations and the wave equations, it can accurately predict output pulse shapes and the frequency chirp as well as the transmission performance with reducing simulation time. Using the EML model, we can calculate the overshoot and dispersion power penalty due to modulation bandwidth and group delay difference in 10-Gb/s EMLs. Our results suggest that the overshoot should be considered to accurately predict the transmission performance of 10-Gb/s EMLs.
KW - Chirp modulation
KW - Digital modulation
KW - Electroabsorption
KW - Optical fiber communications
KW - Optoelectronic devices
KW - Simulation
UR - http://www.scopus.com/inward/record.url?scp=0038190981&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0038190981&partnerID=8YFLogxK
U2 - 10.1109/LPT.2003.810247
DO - 10.1109/LPT.2003.810247
M3 - Article
AN - SCOPUS:0038190981
VL - 15
SP - 643
EP - 645
JO - IEEE Photonics Technology Letters
JF - IEEE Photonics Technology Letters
SN - 1041-1135
IS - 5
ER -