Fiber Bundle Assemblies

Customized Optical Fiber Bundles for Light Transmission, Sensing, and Imaging Applications

WEINERT Industries develops and manufactures customized fiber bundle assemblies designed for efficient light transmission, sensing, imaging, and optical measurement applications. The company offers complete in-house capabilities, ranging from raw materials and fiber production to bundle assembly and specialized optical components. Fiber bundles can be configured in customer-specific geometries, including multi-branch designs and cross-section converters from round to linear arrangements.

Product Portfolio

Fiber Bundle Assemblies

Customized optical fiber bundles optimized for challenging industrial, scientific, and medical environments.

Key Features

Customer-specific bundle geometries and layouts
Multi-branched fiber bundle configurations
Round-to-linear cross-section converters
Suitable for liquids, gases, and solid media
Designed for harsh industrial environments
Available with various connector and tubing options
Compatible with vacuum applications and feedthroughs

Fused Silica Fiber Bundles

High-performance fiber bundles manufactured from UV-VIS and VIS-IR fused silica fibers, optimized for low-loss optical transmission.

Key Features

UV-VIS versions (high OH fused silica)
VIS-IR versions (low OH fused silica)
Core diameters starting from 50 µm
Bundle lengths up to 20 m
High transmission efficiency
Flexible and low-loss design
Autoclavable and temperature-resistant versions available

Technical Capabilities

Fiber Bundle Assemblies

Individual fiber diameters from 20 µm to 105 µm (larger diameters available on request)
Numerical Aperture (NA):
- Fused Silica Bundles: 0.10 – 0.38 (standard 0.22)
- Optical Glass Bundles: 0.56 – 0.86
Small bending radii with high flexibility
Fluorescence-free bonding options
Standard and custom connectors (SMA, ST, FC, etc.)
Wide range of protective tubing solutions

Fused Silica Fiber Bundles

Standard individual fiber diameters:
- 50 µm
- 70 µm
- 80 µm
- 105 µm
Standard lengths:
- 5 m
- 10 m
- 20 m
Customer-specific dimensions available
Polyimide coatings up to 300 °C
Glass-finish coatings for demanding environment

Customized End Faces & Optical Waveguide Assemblies

A key capability of WEINERT Industries is the integration of customized polished end faces. Fiber bundles can be supplied as fully assembled optical waveguides with precisely polished end faces to improve coupling efficiency, transmission performance, and integration into optical systems. This enables customer-specific solutions for spectroscopy, illumination, sensing, and imaging applications

Benefits of Customized End Faces

Improved optical coupling efficiency
Reduced insertion losses
Enhanced transmission performance
Application-specific optical interfaces
Ready-to-install optical waveguide assemblies

Key Advantages

Fully customized fiber bundle designs
In-house fiber manufacturing and assembly
UV, VIS, and IR wavelength compatibility
High flexibility and small bending radii
Temperature-resistant and autoclavable options
Vacuum-compatible configurations
Customized polished end-face solutions
Suitable for harsh industrial and medical environments

Typical Applications

Spectrometry
Endoscopy
Illumination Systems
Optical Sensors
Pyrometry
Monitoring Systems
Optical Measurement & Metrology
Healthcare & Medical Technology

Fiber Bundle Assemblies

WEINERT Industries provides customized Fiber Bundle Assemblies and Fused Silica Fiber Bundles for high-performance light transmission, sensing, imaging, and measurement applications. The solutions combine flexible bundle geometries, UV-to-IR capability, high transmission efficiency, and customer-specific polished end faces. With complete in-house manufacturing expertise, WEINERT delivers tailored fiber bundle systems for industrial, scientific, and medical applications.

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