High-Efficiency Quantum Dot Lasers as Comb Sources for DWDM Applications
Abstract
The trend of data center transceivers is to increase bandwidth while simultaneously decreasing their size, power consumption, and cost. While data center links have previously relied on vertical-cavity surface-emitting lasers (VCSELs) or in-plane lasers using coarse wavelength division multiplexing (WDM) to encode data, recently, dense WDM (DWDM) has moved to the forefront for next-generation links. Several approaches exist as light sources for DWDM links; DFB arrays, nonlinear microcombs, and semiconductor mode-locked lasers (MLLs). This paper focuses on quantum dot MLLs (QDMLLs), which currently offer the best efficiency, simplicity, and size. The efficiency of optical combs generated by QDMLLs is analyzed in depth in this study.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Feb 10, 2022
- Source ID
- 10.3390/app12041836
Entities
People
- John E. Bowers
- M. J. Kennedy
- Mario Dumont
- Songtao Liu
Organizations
- ARPA-E
- Defense Advanced Research Projects Agency