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High Power Silica Fiber Cables
- Durable
- Ability to deliver high intensity laser power
- Various core diameter
- Protected by polymer coated metal armor
PRODUCT DESCRIPTION
We are one of leading suppliers of high-power silica fiber cables for industrial, medical and scientific applications. We offer Fiber Cables in a variety of fiber diameters, protective tubings and connectors, as shown below. Our High Power Fiber Cables exploit the air-gap-ferrule design, where the fiber prolongs into free space securing an epoxy-free area where thermal energy can be safely dissipated without burning the surrounding material, making them ideal for high-power applications. The connector ferrules, fabricated from stainless steel and copper, are used as a heat sink, pulling the heat quickly away from the fiber.
Applications:123■ Laser Welding 123■ Laser Cutting 123■ Medical Laser Delivery 123■ Laser Target & Rangefinder 123■ Laser Spectroscopy 123■ Avionics 123■ Defense and Military 123■ Life science 123■ Airspace |
Features:123■ Highest purity of silica fibers (UV,VIS,NIR) 123■ Metal coated fibers (high temperature applications) 123■ AR-coating of fiber end face 123■ Air-Gap-Ferrule epoxy free 123■ Custom design HP-SMA (High Power) connector - 12311(fiber tip incorporate a pure fused silica capillary) 123■ Polished or Cleaved end face 123■ ISO 9001:2008 certified production 123■ Comprehensive quality control system |
Anatomy of an Assembly
For assembling Optical Cables the multimode fibers with core from pure fused silica and the cladding from fluoride doped silica are used. A buffer material is then applied. A buffer coats the core and cladding, strengthens the fiber. In most assemblies polyimide is used as the buffer; other assemblies use aluminum or acrylate. Then protective tubing is applied over the core, cladding and buffer to protect the fiber and provide strain relief. The standard jacketing is stainless steel silicone monocoil. Precision optical Connectors terminate the cable and are precisely aligned to ensure concentricity of the fiber. Finally, end caps protect the fiber tips against scratches and contaminants.
Choosing the Right Fiber Cable for Laser Power Delivery
The most critical issue in building Laser Power Delivery System is choosing the right Optical Fiber Cable. Three main parameters are important to make right selection:
1. Fiber type & core diameter
2. Coating and protective tube
3. Connector
Choosing the Fiber
One important consideration in ordering an optical fiber assembly is which fiber type you should specify for your application. Typically, the wavelength range needed for your application should match the wavelength range of the fiber type.
Low OH¯ and High OH¯ Optical Fiber:
The optical attenuation characteristics are quite different for high OH¯ and low OH¯ optical fiber core material. For UV-VIS spectral range (λ = 0,18 - 1,2 μm) Silica-Silica fibers with High OH¯ content should be used and for VIS-NIR range (λ =0,35 -2,5 μm) – Silica-Silica fibers with Low OH¯ group concentration are more convenient.
The next significant parameter is the fiber core diameter. Smaller fiber cores are preferred in order to get the best beam quality and high flexibility. However optical fiber cables have several restrictions in their power transmitting capabilities, and there are important limitations to selecting the appropriate (smallest) fiber size. The laser itself imposes constraints on the smallest fiber that can be used.
Maximum CW Power for Each Fiber Diameter |
|
Fiber Specifications |
|||
Core dia. (um) |
Square (mm2) |
CW power (W) |
|
Core |
Pure silica |
50 |
0.0020 |
10 |
|
Cladding |
Fluorine doped fused silica |
100 |
0.0079 |
25 |
|
Coating |
Acrylate coating (-40 to 85oC) |
200 |
0.0314 |
50 |
|
Silicone resin coating (-40 to 180oC) |
|
400 |
0.1256 |
100 |
|
Polyimide coating (-190 to 385oC) |
|
600 |
0.2826 |
300 |
|
|
|
800 |
0.5024 |
600 |
|
|
|
1000 |
0.7850 |
800 |
|
|
|
Protective tubing
Choosing Connectors
Selecting the right connector for your needs can be complicated by the many choices available today. Choosing the best fiber optic connector for any installation will have an impact on how efficient and cost-effective the job is completed.
In today’s Laser Power Fiber Delivery System, there are various optical fiber connector types: SMA, ST, FC/PC, FC/APC, DL80, D-200 connectors, cap-customized. Bespoken Mitsubishi connector design may include ferrule protection by sapphire ring to prevent metal evaporation by intensive laser beam.
High power connectors feature an air-gap design, where the fiber extends into free space b1.1mm to 1.5mm, providing an epoxy-free region where thermal energy can be safely dissipated without burning the surrounding material. This is the key mechanism for failure in standard connectors.
In addition we utilize a number of unique methods of polishing fiber tip or fusing a glass end cap to the end of the fiber (cap connector) to maximize power handling.
High power connectors compatible with SMA 905 and FC receptacles are offered.
Finally, each cable assembly goes through the tight Quality Control with several examinations during the fabrication process, including extensive inspection of fiber tip quality by Fiber Check technique. Data will help alleviate the confusion by reviewing the basic considerations prior to deciding on the best connector for an installation.
CIR & PIR Fibers High Power Fibers for Diode Lasers High Power Fibers for CO2 Lasers