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Fiber Optic Feedthroughs
Fiber Optic Vacuum Feedthroughs and Cable Assemblies
Fiber optic feedthroughs are constructed with 62.5, 100, 200, 400, 600, and 1000 micron UV/VIS or VIS/NIR, and NIR multimode fibers. These feedthroughs are ideally suited for industrial and/or scientific research applications requiring fiber optic connections from inside a vacuum system to external equipment. Multimode fibers (both Step and Graded Index types) are hermetically sealed into a stainless steel shell, using the latest in glass-ceramic bonding technology. Standard fiber optic feedthroughs are terminated with premium SMA 905 connectors on both the vacuum and air sides. FC and ST connections are also available.
Polyimide buffered fiber optic cable assemblies are offered to meet the rigorous demands of ultrahigh vacuum environments. These optical fibers are of a core-and-cladding composite construction. The core, or the filament that guides the light, consists of a thin strand of high-transmission fused silica. The cladding is an outer layer of doped, lower refractive-index fused silica. This dual-layer design tightly confines light to the fiber's central core, thus delivering the maximum amount of light possible at the fiber's destination. Fiber diameters are closely controlled during the drawing process, allowing fibers to center well in connectors and boast low loss rates.
All Accu-Glass Products' optical fibers are constructed as a core-and-cladding composite. The core, or the filament that guides the light, consists of a thin strand of high-transmission fused silica. The cladding consists of an outer layer of doped, lower-refractive-index fused silica. This two-layer design tightly confines the light to the central core of the fiber which in turn delivers a maximum amount of light at the far end. The fiber diameter is closely controlled during the drawing process. This allows the fiber to center well in connectors. A low loss rate is a result.
Graded-index multimode fiber bridges the gap between single mode and step-index multimode fibers, giving up some bandwidth for ease of termination and light launch. It's more economical than single mode fiber, and primarily used for data communication (not as useful for power transmission) applications requiring medium run distances (2 to 15 km lengths).
Features
- UHV compatible construction
- 100, 200, 400, 600, and 1000μm UV, VIS and NIR Step Index fibers
- 62.5μm Graded Index fiber
- SMA 905 premium connector interface
- High temperature rated to 250°C
- Conflat® and ISO KF compatible mounts
- Polyimide buffered vacuum rated optical cables