Optical amplifier
US6577441B2 · kind B2 · utility
1Cited by
3References
36Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 31, 2001 |
| Grant date | Jun 10, 2003 |
| Priority date | — |
| Expiry date | Aug 31, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2303/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical amplifier includes an organic luminescent free radical compound, preferably a salt of a radical cation or a salt of a radical anion, wherein an excited state of the luminescent free radical compound undergoes stimulated emission in an infrared wavelength region, such as 1500 to 1650 nm. Suitable organic luminescent free radical compounds include aminium infrared-absorbing dyes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.