Smart Product Number: SM-TSF-5/125
Eye Safe 5/125 Thulium-Doped Single-Mode Single Clad Fiber
This single clad, small core diameter fiber features a very highly Tm-doped core region (~7% Tm) and is ideally suited for core pumping, enabling very short laser cavities required in producing ultra-fast fiber lasers with high slope efficiency under resonant pumping. The 5 µm core diameter with its 0.24 NA, together, offer superior single-mode operation and excellent bending performance.
Optical Specifications
Operating Wavelength
1900 – 2100 nm
Core NA
0.240 ± 0.020
Core Absorption
330.00 ± 50.00 dB/m at 1180 nm
340.00 ± 50.00 dB/m at 1560 nm
Geometrical & Mechanical Specifications
Cladding Diameter
125.0 ± 1.0 µm
Core Diameter
5.5 ± 1.0 µm
Coating Diameter
245.0 ± 15.0 µm
Coating Concentricity
< 5.0 µm
Core/Clad Offset
≤ 0.50 μm
Prooftest Level
≥ 100 kpsi (0.7 GN/m²)
Comments
Coating Requirements: UV Cured, dual acrylate coating.
Features & Benefits
• Small diameter Tm-doped core design — Robust single mode beam quality
• Flexible design — May be pumped with 793 nm diodes or resonantly pumped using a fiber laser
• High pump absorption — Short fiber length, efficient lasing in the ~2 µm window
• High Tm doped core — Facilitates access to shorter lasing wavelengths below 1900 nm
Typical Applications
• Low to mid power CW and pulsed Eye Safe (~2 µm) lasers and amplifiers
• Ultra-fast (~2 µm) fiber lasers
• Military and commercial LIDAR
• 2 µm fiber lasers for pumping crystal lasers
商品属性 [波长] 1900 - 2100 nm [掺杂类型] Tm [芯径大小] 5.5 µm [首包层直径] 125 µm [数值孔径] 0.240 [光学包层] Single