Eight-fold signal amplification of a superconducting nanowire single-photon detector using a multiple-avalanche architecture
arXiv:1408.1124 · doi:10.1364/OE.22.024574
Abstract
Superconducting nanowire avalanche single-photon detectors (SNAPs) with n parallel nanowires are advantageous over single-nanowire detectors because their output signal amplitude scales linearly with n. However, the SNAP architecture has not been viably demonstrated for n > 4. To increase n for larger signal amplification, we designed a multi-stage, successive-avalanche architecture which used nanowires, connected via choke inductors in a binary-tree layout. We demonstrated an avalanche detector with n = 8 parallel nanowires and achieved eight-fold signal amplification, with a timing jitter of 54 ps.
arXiv comment7 pages, 3 figures
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- Phase-noise limitations on single-photon cross-phase modulation with differing group velocities
- Superconducting-superconducting hybridization for enhancing single-photon detection
- A distributed electrical model for superconducting nanowire single photon detectors