FiberTech Singlemode Germanium-Doped Step-Index Preforms
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United States
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On FindLight:
since 2015
Description
LEONI, through its subsidiary j-fiber, offers high-purity fused silica preforms tailored to customer specifications for manufacturing high-performance optical fibers. These preforms serve as the foundation for applications requiring high data rates, precision sensing, and high-power laser transmission.
Available in step-index and graded-index designs, LEONI preforms can be doped with Germanium, Fluorine, Boron, or Rare-Earth elements to achieve specific numerical apertures and refractive index profiles. Production is achieved via MCVD for inner coatings and PBVD for large-core outer coatings, ensuring excellent homogeneity, minimal inclusions, and strict dimensional tolerances. Graded-index multimode preforms (50/125 and 62.5/125) support efficient data transmission, while fluorine-doped and germanium-doped step-index preforms enable UV-VIS-IR laser delivery, spectroscopy, and fiber Bragg grating (FBG) inscription.
Each preform undergoes rigorous quality monitoring for optical and geometrical performance, ensuring reliability from prototyping to mass production. LEONI preforms deliver outstanding stability, low attenuation, and high laser durability, making them ideal for telecom, medical, industrial, and research applications worldwide.
FiberTech Singlemode Germanium-Doped Step-Index Preforms
Specifications |
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|---|---|
| Cladding Composition: | SiO2 |
| Core Composition: | SiO2 / GeO2 |
| Preform Diameter (O.D.): | 10-40 mm |
| Numerical Aperture: | 0.1 - 0.15 |
Features
- High-Quality Preforms: Developed using highly pure fused silica materials, ensuring top-notch performance for both high-performance special fibers and standard fibers.
- Customizable Waveguide Design: Tailored to meet specific transmission needs, whether for high data rates or high-power laser transmission, from prototype to series production.
- Flexible Preform Design: Options for step-index and graded-index core profiles with various dopant options, including Germanium, Fluorine, Boron, or Rare-earth elements, to achieve the required numerical aperture.
- Advanced Process Technology: Utilizes MCVD (inner coating) and PBVD (outer coating) processes for precise preform production, suitable for both graded-index and large core step-index fibers.
- Strict Quality Monitoring: Every preform undergoes rigorous quality checks to ensure optimal performance during fiber drawing for demanding applications.
- Multimode Preforms: Available in 50/125 and 62.5/125 designs using innovative MCVD production techniques for high-performance multimode fibers.
- Bubble Size Specifications: Strict controls on bubble size within the preform core and cladding to maintain quality.
- Optimized Refractive Index Profile: Nearly parabolic refractive index profile with specific delta values to enhance fiber performance.
- Precision Tolerances: Tight tolerances on numerical aperture and outer diameter to ensure consistency across preforms.
Applications
- Telecommunications: High-bandwidth multimode and singlemode fiber manufacturing
- Laser Delivery Systems: Step-index fibers for high-power lasers
- Spectroscopy and Sensing: Specialty fibers for UV-VIS-IR applications
- FBG Inscription: Photosensitive germanium-doped preforms
- Medical Diagnostics: Specialty fibers for imaging and sensing systems
- Research and Development: Custom fiber prototypes for advanced studies
- Industrial & Microlithography: Preforms for stepper lenses, wafers, and photomasks
Frequently Asked Questions
Each preform is produced with the suited technology: Step 1 involves the choice of the appropriate core material, either from their raw material production of undoped fused silica with high or low OH content or by direct coating of doped fused silica. Step 2 involves the production of the final waveguide preform, either their own MCVD process (inner coating) for graded-index and step-index fibers or a PBVD process (outer coating) for large core step-index fibers.
The acceptable number of bubbles per preform in the core is not allowed for s > 2.0, 0 for s ≤ 0.3, 5 for 0.3 < s ≤ 0.8, and 2 for 0.8 < s ≤ 2.0. Bubbles are not allowed in the cladding.
FiberTech Singlemode Germanium-Doped Step-Index Preforms are preforms with Germanium-doped core for the manufacturing of special step-index fibers.
The MCVD technique is used to ensure the specified fiber transmission properties in the production of preforms.
The dopant options available for preforms are Germanium, Fluorine, Boron, or Rare-earth elements.