Products > Fibers > LIEKKI™ High-Power Fibers > LIEKKI™ Erbium Fibers
LIEKKI™ ER120-20/125
LIEKKI™ Er120-20/125 fibers are large mode area erbium doped fibers suitable for medium power amplifiers and lasers. These fibers are ideally suited for compact, eye-safe devices (1.55 - 1.6 μm region). Both 980 nm and 1480 nm pump diodes may be used for pump sources.
LIEKKI™ Er120-20/125 fibers are currently only available as double cladding (Er120-20/125DC) fibers.
- Good beam quality through low numerical aperture core
- Good efficiency
- Suitable for both 980 nm and 1480 nm pumping
- Pump combiner available for the 20/125 geometry
- Eye-safe fiber lasers (continuous wave/pulsed) and amplifiers operating
in 1.55 - 1.6 μm region - LIDAR
- Medical
- Sensing
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| | LIEKKI™ Er120-20/125DC | | Optical | | Cladding absorption at 1530 nm | dB/m | 2.9 ± 0.6 | | Cladding absorption at 980 nm | dB/m | (1.0) | | Core numerical aperture | | 0.09 ± 0.01 | | Geometrical and mechanical | | Core diameter | | 20 ± 2 | | Core concentricity error | µm | < 1.5 | | Cladding diameter (flat-to-flat) | µm | 125 ± 2 | | Cladding geometry | | Octagonal | | Coating diameter | µm | 245 ± 15 | | Coating material | | Low index acrylate | | Cladding numerical aperture | | > 0.46 | | Proof test | % | > 1 | Custom configurations also available. |
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