All optical inverter/amplifier
US6353498B1 · kind B1 · utility
Assignees
Inventor
Key dates
| Filing date | Mar 17, 2000 |
| Grant date | Mar 5, 2002 |
| Priority date | — |
| Expiry date | Mar 17, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1603
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides an optical function device which is capable of inverting and amplifying an optical signal of the optical communication wavelength band, and executing operation of an image optical signal, and is operable in a wide temperature range, said optical function device composed of a light transmitting medium containing a rare earth element, comprising a portion thereof doped with 1×1023 per 1 m3 or more of the rare earth element for inverting an optical signal and a portion thereof doped with 1×1021 per 1 m3 or more of the rare earth element for amplifying the optical signal with an excitation light superposed thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.