This fiber combines the advantages of a large mode area (LMA) thulium-doped, cladding-pumped fiber with a pedestal free design. Featuring a 25 µm core and a 400 µm cladding, it is intended for high-power laser and amplifier applications operating in the 1.9-2.1 µm wavelenght range while delivering excellent beam quality and high brightness The non-pedestal design eliminates parasitic mode guidance and reduces splice sensitivity, resulting in more robust and reproducible optical assemblies.
LMA Tm doped fiber pedestal-free design
DCF-TM-25/400-08
Description
Features & Benefits
- Octogonal cladding shape
- Constant pump absorption
- Pedestal-free design LMA fiber
- Tested at >100 kpsi to ensure long-term reliability during winding
- Strong power scaling capability
Applications
- Medical precision
- High brightness laser systems
- Coherent sensing
- Mid-IR pumping
- Directed energy and advanced research
Optical fiber specifications
Optical
Cladding Absorption @790 nm (dB/m)
2 ± 0.5
Numerical Aperture - Cladding
Min 0.45
Numercial Aperture- Core
0.0875 ± 0.0125
Geometrical & Mechanical
Cladding diameter (µm)
400 ± 10
Cladding geometry
Oct.
Coating Diameter (µm)
565 ± 15
Core Diameter (µm)
25 ± 1
Core Ovality (%)
<= 8
Core/Cladding Concentricity Error (µm)
<= 3
Proof test (kpsi)
>= 100
Environmental
Storage Temperature (°C)
-40 to +85
