Single-shot high-resolution spectroscopy of single-photon-level optical pulses using a virtually imaged phased-array and single-photon avalanche diode array
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866918143998296064 |
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| author | Nagoro, Yuki Sato, Hidehito Tezuka, Hiroyuki Horikiri, Tomoyuki |
| author_facet | Nagoro, Yuki Sato, Hidehito Tezuka, Hiroyuki Horikiri, Tomoyuki |
| contents | Single-shot high-resolution spectroscopy at the single-photon-level has emerged as a promising measurement technique, enabling novel observations and evaluations that were previously challenging. This technology is particularly effective for spectroscopic applications aimed at realizing frequency-multiplexed quantum repeaters. In this study, we propose a single-shot high-resolution single-photon spectroscopy system that integrates high-resolution frequency-to-spatial mode mapping using a virtually imaged phased-array (VIPA) and high-precision spatial mode detection using a single-photon avalanche diode (SPAD) array. We experimentally demonstrated the principle of this system using weak coherent pulses with a frequency mode interval of 120 MHz. This interval closely matches the minimum frequency mode spacing of the atomic frequency comb quantum memory with the Pr$^{3+}$-ion-doped Y$_2$SiO$_5$ crystal. By applying the proposed system, we expect to maximize the multiplexing capability of frequency-multiplexed quantum repeater schemes utilizing such quantum memories. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_16108 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Single-shot high-resolution spectroscopy of single-photon-level optical pulses using a virtually imaged phased-array and single-photon avalanche diode array Nagoro, Yuki Sato, Hidehito Tezuka, Hiroyuki Horikiri, Tomoyuki Quantum Physics Single-shot high-resolution spectroscopy at the single-photon-level has emerged as a promising measurement technique, enabling novel observations and evaluations that were previously challenging. This technology is particularly effective for spectroscopic applications aimed at realizing frequency-multiplexed quantum repeaters. In this study, we propose a single-shot high-resolution single-photon spectroscopy system that integrates high-resolution frequency-to-spatial mode mapping using a virtually imaged phased-array (VIPA) and high-precision spatial mode detection using a single-photon avalanche diode (SPAD) array. We experimentally demonstrated the principle of this system using weak coherent pulses with a frequency mode interval of 120 MHz. This interval closely matches the minimum frequency mode spacing of the atomic frequency comb quantum memory with the Pr$^{3+}$-ion-doped Y$_2$SiO$_5$ crystal. By applying the proposed system, we expect to maximize the multiplexing capability of frequency-multiplexed quantum repeater schemes utilizing such quantum memories. |
| title | Single-shot high-resolution spectroscopy of single-photon-level optical pulses using a virtually imaged phased-array and single-photon avalanche diode array |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2506.16108 |