Thank you for sharing that article. Miller p.4, says: > Typical results have energies per bit of 2 – 30 pJ/bit in recent demonstrations. (1 pJ/bit is the same

Thank you for sharing that article. Miller p.4, says: > Typical results have energies per bit of 2 – 30 pJ/bit in recent demonstrations. (1 pJ/bit is the same as 1 mW/(Gb/s); the latter is a more common way of stating the unit in the electrical interconnect literature, though the former relates more obviously to the physics of the interconnect devices.) The best current results for transceivers are ~ 2.8 – 6.5 pJ/bit for board or backplane interconnects [17], and ~ 2 pJ/bit [16] for moderate length chip-to-chip interconnects with a relatively ideal electrical channel. Miller p.12: > Hence, from the above discussion of systems energy targets, we have optical device energy targets of 10 – 20 fJ/bit for off-chip interconnects, and ~ 2 – 10 fJ/bit for on-chip interconnects. Kiani's on-chip laser begins operating at 16mW of power. If the laser is part of a chip running at 5GHz, switching the laser at the same clock yields 5Gbit/s. This is 3.2 mW/(Gb/s) = 3.2 pJ/bit. This is still 3 orders of magnitude more than the 10 fJ/bit target.