| Autor: |
Faruque, Imad I., Sinclair, Gary F., Bonneau, Damien, Rarity, John G., Thompson, Mark G. |
| Rok vydání: |
2017 |
| Předmět: |
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| Zdroj: |
Optics Express Vol. 26, Issue 16, pp. 20379-20395 (2018) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1364/OE.26.020379 |
| Popis: |
High visibility on-chip quantum interference among indistinguishable single-photons from multiples sources is a key prerequisite for integrated linear optical quantum computing. Resonant enhancement in micro-ring resonators naturally enables brighter, purer and more indistinguishable single-photon production without any tight spectral filtering. The indistinguishability of heralded single-photons from multiple micro-ring resonators has not been measured in any photonic platform. Here, we report on-chip indistinguishability measurements of heralded single-photons generated from independent micro-ring resonators by using an on-chip Mach-Zehnder interferometer and spectral demultiplexer. We measured the raw heralded two-photon interference fringe visibility as 72 +/- 3%. This result agrees with our model, which includes device imperfections, spectral impurity and multi-pair emissions. We identify multi-pair emissions as the main factor limiting the nonclassical interference visibility, and show a route towards achieving near unity visibility in future experiments. |
| Databáze: |
arXiv |
| Externí odkaz: |
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