Abstract

The GigaBit Transceiver (GBT) project aims at the design of a radiation tolerant chip set for high speed optical data transmission. The chipset includes the GigaBit Laser Driver (GBLD), a radiation tolerant ASIC designed in a standard CMOS 130 nm technology. The GBLD is a laser driver designed to work to up to 5 Gb/s and capable to drive both Vertical Cavity Surface Emitting Lasers (VCSELs) and Edge Emitting Lasers (EELs). The GBLD can provide a modulation current up to 24 mA and a bias current up to 43 mA with the pre-emphasis function to compensate for external capacitive load.

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