25 Gbit/s adaptive 3-tap FFE VCSEL driver in 28-nm CMOS for data center communications
Publikation: Beitrag in Buch/Konferenzbericht/Sammelband/Gutachten › Beitrag in Konferenzband › Beigetragen › Begutachtung
Beitragende
Abstract
This paper presents the design and measurement of an adaptive 3-tap feed-forward equalizer (FFE) integrated circuit (IC) manufactured in 28-nm digital bulk CMOS technology. The driver consumes only 100 mW from a single 1.5 V supply including the vertical-cavity surface-emitting laser (VCSEL) and excluding the input matching circuitry. The 50 Ω input baluns, necessary only for the measurement, are not power optimized and consume 60 mW. The driver was assembled on a printed circuit board (PCB) with DC connections and bonded to a commercially available 7.5 GHz VCSEL diode. An error-free (BER < 10-12) optical transmission with a data rate (DR) of 25 Gbit/s was achieved. It is proven that the 3-tap FFE improves the quality of the optical eye diagram at a cost of eye amplitude. When not needed, the circuitry of the FFE can be switched off saving 22.5 mW of power.
Details
Originalsprache | Englisch |
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Titel | 19th International Conference on Transparent Optical Networks (ICTON) |
Erscheinungsort | Girona |
Herausgeber (Verlag) | IEEE Xplore |
ISBN (elektronisch) | 978-1-5386-0859-3 |
ISBN (Print) | 978-1-5386-0860-9, 978-1-5386-0858-6 |
Publikationsstatus | Veröffentlicht - 2017 |
Peer-Review-Status | Ja |
Publikationsreihe
Reihe | International Conference on Transparent Optical Networks |
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Konferenz
Titel | 19th International Conference on Transparent Optical Networks, ICTON 2017 |
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Dauer | 2 - 6 Juli 2017 |
Stadt | Girona, Catalonia |
Land | Spanien |
Externe IDs
ORCID | /0000-0002-1851-6828/work/142256650 |
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Schlagworte
Forschungsprofillinien der TU Dresden
ASJC Scopus Sachgebiete
Schlagwörter
- adaptivity, data centre communications, driver, integrated circuit, optical interconnect, VCSEL