Broadband Tm-doped optical fiber amplifier
US11509109B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Mar 9, 2020 |
| Grant date | Nov 22, 2022 |
| Priority date | — |
| Expiry date | Mar 9, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A broadband optical amplifier for operation in the 2 μm visible wavelength band is based upon a single-clad Tm-doped fiber amplifier (TDFA). A compact pump source uses a combination of low-power laser diode with a fiber laser to provide a multi-watt pump beam without needing to include thermal management and/or pump wavelength stability components. The broadband optical amplifier is therefore able to be relatively compact device with fiber coupled output powers of >0.5 W CW, high small signal gain, low noise figure, and large OSNR, important for use as a versatile wideband preamplifier or power booster amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.