Optical functioning glass and apparatus using the same
US5244846A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Feb 3, 1992 |
| Grant date | Sep 14, 1993 |
| Priority date | — |
| Expiry date | Feb 3, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2303/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical functioning glass for enabling optical amplification at 1.3-.mu.m wavelength band or increasing efficiency of the amplification is disclosed. The optical functioning glass contains Nd.sup.3+ as an active material and uranium, both of which are doped in a multi-component function glass serving as a host glass. Since uranium is doped in the optical functioning glass, light emission of Nd.sup.3+ in the 1.06-.mu.m wavelength band can be absorbed by uranium. A decrease in efficiency of induced emission in a 1.3-.mu.m wavelength band can be prevented, and an optical functioning glass suitable for optical amplification in the 1.3-.mu.m wavelength band can be obtained. When a fiber is formed using the optical functioning glass as a core, a low-threshold, high-gain fiber amplifier, fiber laser, and the like can be obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.