A linear modulator driver with over 70-GHz bandwidth 21.8-dB gain and 3.4-Vppd output swing for beyond 120-GBd optical links
- Author
- Shengpu Niu (UGent) , Riaz Ahmed (UGent) , Joris Lambrecht (UGent) , Jakob Declercq (UGent) , Marijn Verbeke (UGent) , Michiel Verplaetse, Bart Moeneclaey (UGent) , Cheng Wang (UGent) , Joris Van Kerrebrouck (UGent) , Nishant Singh (UGent) , Johan Bauwelinck (UGent) and Xin Yin (UGent)
- Organization
- Project
- Abstract
- This article investigates a linear differential modulator driver for optical communication links beyond 120 GBd. The driver was implemented in a 55-nm SiGe BiCMOS technology with an f(T)/f(MAX) of 330/370 GHz, featuring a traveling wave output stage driven by a lumped variable gain amplifier (VGA) and a predriver. The fabricated IC achieved a maximum low-frequency gain of 21.8 dB with more than 10-dB gain control capability and a 3-dB bandwidth of over 70 GHz. Power measurement results show the driver is able to deliver a constant output swing of 3.56 Vppd while keeping the THD below 2%, with the differential input swing varying from 0.3 to 1.03 Vppd at 1 GHz. In the large signal measurement, the chip delivered 72,106,112, and 128 GBd pulse amplitude modulation-4 (PAM-4) signals with differential output swings of 4, 3.59, 3.434, and 3.425 Vppd, respectively. The chip's total power consumption is 725 mW, resulting in a power efficiency of 2.83 pJ/bit. Overall, this is the first time an optical modulator driver reported the ability to accommodate such a wide input swing and demonstrated the operation at a data rate of 256 Gb/s. These features make it a desired candidate for beyond 120-GBd optical links.
- Keywords
- Gain, Bandwidth, Modulation, Impedance matching, Linearity, Resistors, Optical fiber communication, Modulator driver, pulse amplitude modulation-4 (PAM-4), SiGe BiCMOS, traveling wave, BICMOS, AMPLIFIER, GHZ
Downloads
-
8469 acc.pdf
- full text (Accepted manuscript)
- |
- open access
- |
- |
- 4.41 MB
Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-01HKVZN081K6GYJBR9WS54731X
- MLA
- Niu, Shengpu, et al. “A Linear Modulator Driver with over 70-GHz Bandwidth 21.8-DB Gain and 3.4-Vppd Output Swing for beyond 120-GBd Optical Links.” IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, vol. 72, no. 7, 2024, pp. 4080–91, doi:10.1109/TMTT.2023.3342624.
- APA
- Niu, S., Ahmed, R., Lambrecht, J., Declercq, J., Verbeke, M., Verplaetse, M., … Yin, X. (2024). A linear modulator driver with over 70-GHz bandwidth 21.8-dB gain and 3.4-Vppd output swing for beyond 120-GBd optical links. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 72(7), 4080–4091. https://doi.org/10.1109/TMTT.2023.3342624
- Chicago author-date
- Niu, Shengpu, Riaz Ahmed, Joris Lambrecht, Jakob Declercq, Marijn Verbeke, Michiel Verplaetse, Bart Moeneclaey, et al. 2024. “A Linear Modulator Driver with over 70-GHz Bandwidth 21.8-DB Gain and 3.4-Vppd Output Swing for beyond 120-GBd Optical Links.” IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES 72 (7): 4080–91. https://doi.org/10.1109/TMTT.2023.3342624.
- Chicago author-date (all authors)
- Niu, Shengpu, Riaz Ahmed, Joris Lambrecht, Jakob Declercq, Marijn Verbeke, Michiel Verplaetse, Bart Moeneclaey, Cheng Wang, Joris Van Kerrebrouck, Nishant Singh, Johan Bauwelinck, and Xin Yin. 2024. “A Linear Modulator Driver with over 70-GHz Bandwidth 21.8-DB Gain and 3.4-Vppd Output Swing for beyond 120-GBd Optical Links.” IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES 72 (7): 4080–4091. doi:10.1109/TMTT.2023.3342624.
- Vancouver
- 1.Niu S, Ahmed R, Lambrecht J, Declercq J, Verbeke M, Verplaetse M, et al. A linear modulator driver with over 70-GHz bandwidth 21.8-dB gain and 3.4-Vppd output swing for beyond 120-GBd optical links. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES. 2024;72(7):4080–91.
- IEEE
- [1]S. Niu et al., “A linear modulator driver with over 70-GHz bandwidth 21.8-dB gain and 3.4-Vppd output swing for beyond 120-GBd optical links,” IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, vol. 72, no. 7, pp. 4080–4091, 2024.
@article{01HKVZN081K6GYJBR9WS54731X,
abstract = {{This article investigates a linear differential modulator driver for optical communication links beyond 120 GBd. The driver was implemented in a 55-nm SiGe BiCMOS technology with an f(T)/f(MAX) of 330/370 GHz, featuring a traveling wave output stage driven by a lumped variable gain amplifier (VGA) and a predriver. The fabricated IC achieved a maximum low-frequency gain of 21.8 dB with more than 10-dB gain control capability and a 3-dB bandwidth of over 70 GHz. Power measurement results show the driver is able to deliver a constant output swing of 3.56 Vppd while keeping the THD below 2%, with the differential input swing varying from 0.3 to 1.03 Vppd at 1 GHz. In the large signal measurement, the chip delivered 72,106,112, and 128 GBd pulse amplitude modulation-4 (PAM-4) signals with differential output swings of 4, 3.59, 3.434, and 3.425 Vppd, respectively. The chip's total power consumption is 725 mW, resulting in a power efficiency of 2.83 pJ/bit. Overall, this is the first time an optical modulator driver reported the ability to accommodate such a wide input swing and demonstrated the operation at a data rate of 256 Gb/s. These features make it a desired candidate for beyond 120-GBd optical links.}},
author = {{Niu, Shengpu and Ahmed, Riaz and Lambrecht, Joris and Declercq, Jakob and Verbeke, Marijn and Verplaetse, Michiel and Moeneclaey, Bart and Wang, Cheng and Van Kerrebrouck, Joris and Singh, Nishant and Bauwelinck, Johan and Yin, Xin}},
issn = {{0018-9480}},
journal = {{IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES}},
keywords = {{Gain,Bandwidth,Modulation,Impedance matching,Linearity,Resistors,Optical fiber communication,Modulator driver,pulse amplitude modulation-4 (PAM-4),SiGe BiCMOS,traveling wave,BICMOS,AMPLIFIER,GHZ}},
language = {{eng}},
number = {{7}},
pages = {{4080--4091}},
title = {{A linear modulator driver with over 70-GHz bandwidth 21.8-dB gain and 3.4-Vppd output swing for beyond 120-GBd optical links}},
url = {{http://doi.org/10.1109/TMTT.2023.3342624}},
volume = {{72}},
year = {{2024}},
}
- Altmetric
- View in Altmetric
- Web of Science
- Times cited: