2.9 K VCSEL demonstrates 100 Gbps PAM-4 optical data transmission
Abstract
A cryogenic packaged vertical-cavity-surface-emitting laser (VCSEL) with microwave input and coupled with OM4 fiber for optical output was developed and demonstrated laser operation from 295 to 2.9 K. Record 2.9 K optical data links of 100 Gbps pulsed amplitude modulation 4-level have been demonstrated with an energy per bit ∼153.4 fJ/bit when TDECQ = 3.79 dB. The energy/bit is limited by the link path bandwidth resulted from the input cable loss to 2.9 K VCSEL and can be further improved. Thus, the VCSEL optical data link is proven to be a viable solution for cryogenic communication and computing.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jul 04, 2022
- Source ID
- 10.1063/5.0095321
Entities
People
- Dufei Wu
- Haonan Wu
- Milton Feng
- Wenning Fu
Organizations
- Army Research Office
- Intelligence Advanced Research Projects Activity
- University of Illinois Urbana–Champaign