Photon beam generator
US6421488B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 23, 1999 |
| Grant date | Jul 16, 2002 |
| Priority date | — |
| Expiry date | Nov 23, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/3544
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photon beam generating apparatus comprises an incident pump beam generation section 1 and a photon pair generation section including a non-linear optical medium 3. The angle between the optical axis of the medium 3 and an incident pump beam is set to a value such that tuning curves become tangent to a line corresponding to a wavelength a in order to generate two photon beams including paired photons generated simultaneously and having a wavelength a. Another photon beam generating apparatus comprises an incident pump beam generation section 1 and a photon pair generation section including a non-linear optical medium 3. The angle between the optical axis of the medium 3 and the incident pump beam is set to a value such that tuning curves become tangent to different lines corresponding to wavelengths a and b respectively, in order to generate two photon beams including paired photons generated simultaneously and having wavelengths a and b respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.