High-Speed VCSELs for OOK and Multilevel PAM Modulation
Paper in proceedings, 2017

The short-reach optical interconnects used in datacenters and high-performance computing systems are dominated by vertical-cavity surface-emitting laser (VCSEL) and multimode fiber (MMF) links1. The VCSEL-MMF technology is the most cost and power efficient and offers the smallest footprint. VCSELs for 25-28 Gbit/s OOK lanes are in production2 while 25-28 Gbaud PAM-4 with forward-error-correction (FEC) is considered for next generation 50-56 Gbit/s lanes3. For this transition, as well as future developments towards even higher speed, the VCSEL dynamics and high-speed properties are of utmost importance. Improved dynamics may enable 50-56 Gbit/s PAM-4 without FEC and even 50-56 Gbit/s OOK, which would reduce complexity, power consumption, and latency.

Author

Anders Larsson

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Johan Gustavsson

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Erik Haglund

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Emanuel Haglund

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Tamas Lengyel

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Ewa Simpanen

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

30TH ANNUAL CONFERENCE OF THE IEEE PHOTONICS SOCIETY (IPC)

2374-0140 (ISSN)

355-356

30th Annual Conference of the IEEE-Photonics-Society (IPC)
Orlando, USA,

Subject Categories

Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1109/IPCon.2017.8116137

More information

Latest update

3/23/2018