A Scalable 32–56 Gb/s 0.56–1.28 pJ/b Voltage-Mode VCSEL-Based Optical Transmitter in 28-nm CMOS
In: IEEE Journal of Solid-State Circuits, Jg. 57 (2022-03-01), S. 757-766
Online
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Zugriff:
An optical transmitter (TX) data path is demonstrated in 28-nm CMOS which drives an 850-nm vertical-cavity surface-emitting laser (VCSEL) up to 56 Gb/s non-return-to-zero (NRZ). A dc-coupled single-ended voltage-mode driver employs area- and energy-efficient equalization techniques including slew-rate-based pulse-shaping at 2x more energy- and area-efficient than optical TXs reported to date. The highly digital circuit architecture enables the supply scalability to 0.7 and 0.85 V to operate the TX at 32 and 40 Gb/s at 0.56 and 0.77 pJ/b, respectively, which is ≥ 4x more energy-efficient than the prior art.
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A Scalable 32–56 Gb/s 0.56–1.28 pJ/b Voltage-Mode VCSEL-Based Optical Transmitter in 28-nm CMOS
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Autor/in / Beteiligte Person: | Casper, Bryan K. ; Hsu, Chun-Ming ; Qiu, Junyi ; Jaussi, James E. ; Li, Hao ; Mansuri, Mozhgan ; Kennedy, Joseph T. ; Sharma, Jahnavi ; Inti, Rajesh |
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Zeitschrift: | IEEE Journal of Solid-State Circuits, Jg. 57 (2022-03-01), S. 757-766 |
Veröffentlichung: | Institute of Electrical and Electronics Engineers (IEEE), 2022 |
Medientyp: | unknown |
ISSN: | 1558-173X (print) ; 0018-9200 (print) |
DOI: | 10.1109/jssc.2021.3124289 |
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