Method and apparatus for Josephson distributed output amplifier

A distributed amplifier circuit comprising:

• a first transmission line and a second transmission line, each of the first transmission line and the second transmission line having a plurality of Josephson Transmission lines (“JTLs”), each JTL having a Josephson transmission delay;
• a plurality of resonant circuits connected in series, including a voltage source controlled with at least one of the first transmission line or the second transmission line, one of the plurality of the resonant circuits having a resonant transmission delay;
• wherein the resonant transmission delay is substantially matched to the Josephson transmission delay of at least one of the plurality of JTLs.

A superconductor driver for high throughput data amplification, comprising:

• a first amplification stage having a first Josephson transmission line (JTL) and a second Josephson transmission line with a resonant circuit interposed therebetween,
• the first Josephson transmission line having a first transmission line delay and the second Josephson transmission line having a second transmission line delay,
• the resonant circuit configured to have a resonant circuit delay substantially matching the first transmission line delay.