40-Gbit/s 850-nm VCSEL-Based Full-CMOS Optical Link with Power-Data Rate Adaptivity
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
An optical link based on directly modulated vertical-cavity surface-emitting laser (VCSEL) at 850-nm wavelength using commercial VCSEL and photodiode operating error-free BER < 10-12) at 40 Gbit/s is reported. The transmitter is implemented in a 14-nm FinFET CMOS while the receiver (RX) in 28-nm digital bulk-CMOS technologies. This is the fastest 850-nm VCSEL-based single-lane non-return-to-zero optical link with all the analog front-end components fabricated in CMOS. An energy-per-bit of 3.4 pJ/bit is measured at 40 Gbit/s. At lower data rates, the bandwidths of the circuits can be decreased adaptively to save power. This results in 2.7 pJ/bit at 20 Gbit/s. A sensitivity of -1.9 dBm optical modulation amplitude could be measured at the RX for 40 Gbit/s.
Details
Original language | English |
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Pages (from-to) | 611-613 |
Number of pages | 3 |
Journal | IEEE Photonics Technology Letters |
Volume | 30 |
Issue number | 7 |
Publication status | Published - Apr 2018 |
Peer-reviewed | Yes |
External IDs
ORCID | /0000-0002-1851-6828/work/142256641 |
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Keywords
Research priority areas of TU Dresden
ASJC Scopus subject areas
Keywords
- CMOS integrated circuits, laser driver, Optical interconnects, optical receiver, VCSEL