An all-fibred, telecom technology compatible, room temperature, single-photon source
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arXiv
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| Autores principales: | , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866914134970335232 |
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| author | Lecaron, Nathan Meunier, Max Sauder, Grégory Dalidet, Romain Pelet, Yoann Tanzilli, Sébastien Zuniga-Pérez, Jesus Alibart, Olivier |
| author_facet | Lecaron, Nathan Meunier, Max Sauder, Grégory Dalidet, Romain Pelet, Yoann Tanzilli, Sébastien Zuniga-Pérez, Jesus Alibart, Olivier |
| contents | Single photon sources are essential building blocks for fundamental quantum optics but also for quantum information networks. Their widespread is currently hindered by unpractical features, such as operation at cryogenic temperature and emission wavelength lying outside telecom windows. Taking advantage of telecom technology and point defects in GaN crystals, we present, for the first time, the development of a fully-fibred source of single photons operating at room temperature, emitting photons in the telecom O-band and fulfilling the standards of telecom photonics. We characterise an emitter producting single photons at the wavelength of 1292\,nm, a spectral broadening compatible with CWDM channels of 13\,nm, and a brightness of 25 kcps per mW of pump power. The source shows a signal-to-noise ratio of 16.5 and an autocorrelation degree (purity) of 0,059 at room temperature, showing high potential for being integrated transportable quantum cryptography devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_03475 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | An all-fibred, telecom technology compatible, room temperature, single-photon source Lecaron, Nathan Meunier, Max Sauder, Grégory Dalidet, Romain Pelet, Yoann Tanzilli, Sébastien Zuniga-Pérez, Jesus Alibart, Olivier Quantum Physics Single photon sources are essential building blocks for fundamental quantum optics but also for quantum information networks. Their widespread is currently hindered by unpractical features, such as operation at cryogenic temperature and emission wavelength lying outside telecom windows. Taking advantage of telecom technology and point defects in GaN crystals, we present, for the first time, the development of a fully-fibred source of single photons operating at room temperature, emitting photons in the telecom O-band and fulfilling the standards of telecom photonics. We characterise an emitter producting single photons at the wavelength of 1292\,nm, a spectral broadening compatible with CWDM channels of 13\,nm, and a brightness of 25 kcps per mW of pump power. The source shows a signal-to-noise ratio of 16.5 and an autocorrelation degree (purity) of 0,059 at room temperature, showing high potential for being integrated transportable quantum cryptography devices. |
| title | An all-fibred, telecom technology compatible, room temperature, single-photon source |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2504.03475 |