Abstract
We report the low-power dissipation 1060-nm VCSELs operating at a high modulation speed of 25 Gb/s
or more. We achieved a direct modulation capability of 25 Gb/s with low-power dissipation less than
125 fJ/bit. We also successfully demonstrated 28 Gb/s error-free signal transmission at a long distance
of 500 m using an MMF with a modal bandwidth maximized at 1060 nm. An accelerated aging test
shows the high reliability of a VCSEL that has an estimated failure rate less than 70 FIT/ch. The
1060-nm VCSEL is a promising light source for future green data centers and high performance
computer systems.
