Abstract
Cryogenic computing requires an energy-efficient optical data link from 4 K to the end-user at room temperature. Laser spectra and light-current-voltage family curves over a wide temperature range from 2.6 to 295 K are reported on oxide-vertical cavity surface emitting lasers coupled with OM4 fiber. Non-linear shifting of the lasing wavelength vs junction temperatures is measured with the wavelength shifting coefficients <0.005 nm/K at 2.6 K. 12.5 Gb/s non-return-to-zero error-free data transmission at 2.6 K to the error detector at 295 K is demonstrated as a viable solution for cryo-computing.
Original language | English (US) |
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Article number | 041101 |
Journal | Applied Physics Letters |
Volume | 119 |
Issue number | 4 |
DOIs | |
State | Published - Jul 26 2021 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)