this phosphosilicate fiber is ideal as a gain medium for lower power amplifiers or the pre-amplifier stage and is mainly used in MOPA configuration of a pulsed fiber laser. On top of all the benefits found in a phosphosilicate fiber (high saturation energy, photodarkening-free performance and high absorption), this fiber shows easy singlemode operation ande very low splice loss when matching with standard fibers such as HI 1060.
Yb-doped fiber for pulsed lasers
DCF-YB-7/128-FA
Description
Features & Benefits
- Easy single-mode operation and low splice loss with passive matching fibers
- Photodarkening free - ensures stable long-term operation
- Wide, flat absorption from 910 nm to 970 nm - reduces pump cooling requirements and allows 940 - 960nm pumping
Applications
- Pulsed fiber lasers : gain media in preamplifiers or low power amplifiers
- Material processing : laser marking, laser engraving, micromachining and welding
Optical fiber specifications
Optical
Cladding Absorption @ 915 nm (dB/m)
0.9 ± 0.2
Cladding Absorption @ 974 nm (dB/m)
Typ. 5.4
Numerical Aperture - Cladding
Min 0.45
Numerical Aperture - Core
0.19 ± 0.02
Geometrical & Mechanical
Cladding diameter (µm)
128 ± 3
Cladding geometry
Oct.
Coating Diameter (µm)
260 ± 20
Core Diameter (µm)
7 ± 1
Core Diameter (µm)
7 ± 1
Core/Cladding Concentricity Error (µm)
≤ 1
Proof test (kpsi)
<= 100
