Abstract
Single-photon interference fringes with greater than 90% visibility were measured using a 10 km long optical fibre interferometer. The experiment employed a pulsed semiconductor laser source operating at a wavelength of 1.3 mum and a novel single-photon counting scheme using high-speed germanium avalanche photodiodes. Interferometers of this type could form the basis of future quantum cryptography systems.
| Original language | English |
|---|---|
| Pages (from-to) | 634-635 |
| Number of pages | 2 |
| Journal | Electronics Letters |
| Volume | 29 |
| Issue number | 7 |
| Publication status | Published - 1 Apr 1993 |
Research Groups and Themes
- Photonics and Quantum