Scholarlink

<p>The development of quantum and superconducting computer applications requires high-bandwidth and energy-efficient readout interfaces that can connect superconducting integrated circuits with a room-temperature environment. However, electrical and optical interconnect approaches involve extra amplification stages due to the low outputs of the superconducting circuits, which make them complicated, difficult to scale and a source of heat leakage. Here we describe a single-chip electronic–photonic transmitter that is driven directly by superconducting electronics and is fabricated using a commercial complementary metal–oxide–semiconductor foundry process. A laser-forwarded coherent-link architecture enables the transmitter to be directly driven at 4 K by a superconducting integrated circuit with only millivolt-level voltage swing and at a bit error rate of under 1 × 10<sup>−6</sup>. The energy efficiency of the link, at a temperature of 4 K and a laser power split ratio of 10/90, is 673 fJ per bit.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

A fully packaged cryogenic optical transmitter directly interfaced with a superconducting chip

  • 期刊论文

  • 发表日期：

    2026年1月2日

查看全文
  • Bozhi Yin,
  • Hayk Gevorgyan,
  • Deniz Onural,
  • Bohan Zhang,
  • Anatoly Khilo,
  • Miloš A. Popović,
  • Vladimir M. Stojanović

摘要

The development of quantum and superconducting computer applications requires high-bandwidth and energy-efficient readout interfaces that can connect superconducting integrated circuits with a room-temperature environment. However, electrical and optical interconnect approaches involve extra amplification stages due to the low outputs of the superconducting circuits, which make them complicated, difficult to scale and a source of heat leakage. Here we describe a single-chip electronic–photonic transmitter that is driven directly by superconducting electronics and is fabricated using a commercial complementary metal–oxide–semiconductor foundry process. A laser-forwarded coherent-link architecture enables the transmitter to be directly driven at 4 K by a superconducting integrated circuit with only millivolt-level voltage swing and at a bit error rate of under 1 × 10−6. The energy efficiency of the link, at a temperature of 4 K and a laser power split ratio of 10/90, is 673 fJ per bit.