50um Core Diameter Beam Delivery Fiber BD-S50/70/480-STN BD-S50/70/660- STN
Coherent/Nufern’s NuBEAM specialty step-index multimode fibers serve fiber-coupled semiconductor lasers, single-emitter fiber coupling and diode-laser-to-fiber power delivery. They are compatible with most fibers used for laser-power transmission. The fibers have a 50um core diameter, numerical aperture NA 0.22, three available cladding diameters, a silicone coating and a transparent nylon buffer. Options include Nufern’s NoCOAT-FA low-index fluorine-doped coating to confine power within the fiber waveguide, or a polyimide coating for high-power applications. Other cladding diameters and numerical apertures are available on request.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Operating Wavelength (General Conditions) [Under General Conditions] | 800-2100 nm |
| Core Numerical Aperture | 0.22±0.02 |
| Hydroxyl Ion Level | Low |
| Core Diameter | 51.0±1.0 μm |
| Core Type | Pure Silica Core |
| First Cladding Diameter (Inner Cladding) | 72.0±2.0 μm |
| Second Cladding Diameter | 672.5±12.5 μm |
| First Buffer Diameter | 780±20 μm |
| First Buffer Material | Silicone |
| Second Buffer Diameter | 1100±55 μm |
| Second Buffer Material | Transparent Nylon |
| Proof Test Level | ≥100 (0.7GN/m²) |
| Short-Term Bend Radius | ≥66 mm |
| Long-Term Bend Radius | ≥198 mm |
| Buffer Requirements | The First Buffer Is Silicone; the Second Buffer Is Transparent Nylon |
| Matched or Depressed-Cladding Refractive Index Profile | Depressed-Cladding Type |
| Special Core Doping | Pure Silica Core |
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Key Features
Datasheet
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