Integrated Telecom Wavelength Heralded Single-Photon Source based on GHz gated detectors
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arXiv
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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866909001049964544 |
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| author | Pereira, Maria Ana Wu, Mingsong Raja, Arslan Sajid Wang, Rui Ning Kippenberg, Tobias Zbinden, Hugo Brydges, Tiff Thew, Rob |
| author_facet | Pereira, Maria Ana Wu, Mingsong Raja, Arslan Sajid Wang, Rui Ning Kippenberg, Tobias Zbinden, Hugo Brydges, Tiff Thew, Rob |
| contents | We introduce a simple and flexible concept for a heralded -- spectrally pure -- single photon source. The scheme uses a probabilistic photon pair source pumped with a CW laser, whereby a rapid gating InGaAs/InP single photon avalanche diode provides a synchronous clock and temporally resolves, and hence spectrally filters, the heralded photons. We demonstrate the concept by combining this with a narrow-band integrated silicon nitride photon-pair source. This simple architecture is capable of heralding photons with high spectral purity in the telecom band, but could be adapted to other wavelengths and bandwidth regimes. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_16049 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Integrated Telecom Wavelength Heralded Single-Photon Source based on GHz gated detectors Pereira, Maria Ana Wu, Mingsong Raja, Arslan Sajid Wang, Rui Ning Kippenberg, Tobias Zbinden, Hugo Brydges, Tiff Thew, Rob Quantum Physics We introduce a simple and flexible concept for a heralded -- spectrally pure -- single photon source. The scheme uses a probabilistic photon pair source pumped with a CW laser, whereby a rapid gating InGaAs/InP single photon avalanche diode provides a synchronous clock and temporally resolves, and hence spectrally filters, the heralded photons. We demonstrate the concept by combining this with a narrow-band integrated silicon nitride photon-pair source. This simple architecture is capable of heralding photons with high spectral purity in the telecom band, but could be adapted to other wavelengths and bandwidth regimes. |
| title | Integrated Telecom Wavelength Heralded Single-Photon Source based on GHz gated detectors |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2509.16049 |