Smart Product Number: LMA-HTF-40/250/400
EyeSafe 40 Micron Core Holmium-Doped LMA All-Glass Double-Clad Fiber
True LMA fiber featuring a unique low NA (< 0.1) high concentration Ho-doped core design. The Ho-doped fiber can be pumped by a Tm-doped fiber laser at ~1950 nm and can achieve 60% efficiency. The Ho-doped fiber features a unique all-glass cladding design with a 40 µm diameter Ho-doped core, a glass inner cladding diameter of 250 µm, a 320 µm 0.22NA index depressed outer glass cladding for the pump radiation and a fluoroacrylate outer polymer jacket (40/250/320/400).
Optical Specifications
Operating Wavelength 2100 – 2200 nm Core NA 0.080 ± 0.010 Second Cladding NA (5%) ≥ 0.46 Cladding Absorption 0.55 ± 0.20 dB/m at 1150 nm
Geometrical & Mechanical Specifications
First Cladding Diameter (flat-to-flat) 250.0 ± 10.0 µm Second Cladding Diameter 320 ± 15 µm Third Cladding Diameter 400 ± 10 µm Core Diameter 40.0 ± 4.0 µm Coating Diameter 550.0 ± 15.0 µm Prooftest Level ≥ 100 kpsi (0.7 GN/m²)
Comments
Coating Requirements: Low index Coating.
Features & Benefits
• Unique low NA Ho-doped core design — Robust single-mode beam quality
• NuCOAT fluoroacrylate coating — Greater fiber durability in extreme environmental operating & storage conditions
• High pump absorption — Short fiber length, efficient lasing in the ~2 μm window
• Unique all-glass double clad design — For achieving higher output powers
Typical Applications
• High power CW and pulsed EyeSafe (~2 μm) lasers and amplifiers
• EyeSafe industrial and medical lasers
• Military and commercial LIDAR
商品属性 [波长] 2100 - 2200 nm [掺杂类型] Ho [芯径大小] 40 µm [首包层直径] 250 µm [数值孔径] 0.080 [光学包层] Triple