Strain-optic active control for quantum integrated photonics
| Autor: | Humphreys, Peter C., Metcalf, Benjamin J., Spring, Justin B., Moore, Merritt, Salter, Patrick S., Booth, Martin J., Kolthammer, W. Steven, Walmsley, Ian A. |
|---|---|
| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Optics Express, Vol. 22, Issue 18, pp. 21719-21726 (2014) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1364/OE.22.021719 |
| Popis: | We present a practical method for active phase control on a photonic chip that has immediate applications in quantum photonics. Our approach uses strain-optic modification of the refractive index of individual waveguides, effected by a millimeter-scale mechanical actuator. The resulting phase change of propagating optical fields is rapid and polarization-dependent, enabling quantum applications that require active control and polarization encoding. We demonstrate strain-optic control of non-classical states of light in silica, showing the generation of 2-photon polarisation N00N states by manipulating Hong-Ou-Mandel interference. We also demonstrate switching times of a few microseconds, which are sufficient for silica-based feed-forward control of photonic quantum states. Comment: 7 pages, 5 figures. Updated to be consistent with published version |
| Databáze: | arXiv |
| Externí odkaz: |
|