ER3+ doped boro-tellurite glasses for 1.5 μm broadband amplification
US6859606B2 · kind B2 · utility
15Cited by
6References
29Claims
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Key dates
| Filing date | Nov 27, 2002 |
| Grant date | Feb 22, 2005 |
| Priority date | — |
| Expiry date | Mar 25, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/177
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A tellurite-based glass composition for use in EDFAs exhibits higher phonon energy without sacrificing optical, thermal or chemical durability properties. The introduction of boron oxide (B2O3) into the Er3+-doped tellurite glasses increases the phonon energy from typically 785 cm−1 up to 1335 cm−1. The inclusion of additional glass components such as Al2O3 has been shown to enhance the thermal stability and particularly the chemical durability of the boro-tellurite glasses. Er:Yb codoping of the glass does further enhance its gain characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.