Our Erbium & Ytterbium Co-Doped Fibers combines the mixture of Erbium and Ytterbium in a single fiber to help extend absorption bands for doped fibers.
Extremely High Pump Absorption for Short Length Amplifiers
All-Silica Design Engineered for Environmental Stability
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erbium-&-ytterbium-doped-fibers - Drawings
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Features
Dual-Clad Erbium & Ytterbium Co-Doped Fiber
Unlike other cladding pump or dual-clad fibers, Fibercore’s Dual-Clad Erbium/Ytterbium Doped Fiber (F-CP1500Y) was originally designed as a high-power communications amplifier fiber. The pump light is guided within an all-silica structure, using a fluorinated secondary cladding to create the pump guide boundary, without the need for low index polymers.
All-Silica Design
The all-silica design means the fiber can be stripped, cleaved and spliced using standard telecoms industry equipment, without the need to recoat the fiber. The all-silica design also gives outstanding power handling across full temperature and humidity ranges, without the reliability problems observed in low index polymer cladding designs.
Single Mode Erbium & Ytterbium Co-Doped Fiber
Fibercore’s SM Erbium/Ytterbium Doped Fiber (F-DF1500Y) is a Single-Mode (SM) Erbium (Er) and Ytterbium (Yb) doped fiber, providing extremely high levels of pump absorption and emission around the telecoms C and L band windows. The fiber can be used for lower power fiber lasers, pre-amplifiers and Amplified Spontaneous Emission (ASE) light sources. The high absorption is ideal for applications requiring short gain lengths, for example femtosecond mode-locked ring lasers.
Mixture of Erbium & Ytterbium
The mixture of Erbium and Ytterbium extends the 915nm pump absorption band to 980nm with a relatively flat absorption rate until the 980nm peak. This allows low cost, non-stabilized 940nm pumps to be used where variations in the pump wavelength with temperature will have a much smaller effect on the output power than pumping at 980nm.
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