Function element using quantum interference effect
US6101203A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1998 |
| Grant date | Aug 8, 2000 |
| Priority date | — |
| Expiry date | Sep 29, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/3523
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light-modulating element having a RQB medium, a pair of electrodes provided on the RQB medium and connected to a high-frequency power supply, a signal light source for emitting two signal light beams, and two optical fibers for guiding the signal light beams to the RQB medium. In the element, the conditions .sigma..sub.23 .ltoreq..sigma..sub.12 and .sigma..sub.23 .ltoreq..sigma..sub.13 are satisfied, where .sigma..sub.12 is the standard deviation (inhomogeneous broadening) of energies of impurities between a first level and a second level, .sigma..sub.13 is the standard deviation (inhomogeneous broadening) of energies of impurities between first level and a third level, and .sigma..sub.23 is the standard deviation (inhomogeneous broadening) of energies of impurities between the second and third levels, all impurities existing in the RQB medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.