
Custom Fiber Optic Cables
Fiber cables and fiber bundles to specification, for industry, medical technology and analytics.
From the selection of the optimal fiber to the finished assembly, we provide solutions tailored to your requirements. Our fiber optic cables are durable, robust and manufactured to the highest quality standards in Germany.
Fiber Materials for Optimal Transmission
The foundation of every first-class fiber optic solution is the choice of the right material. We offer a broad range of fiber types: fused silica (Silica/Silica) for laser and UV applications, borosilicate for high temperature resistance and chemical resilience, PMMA for lightweight solutions with high light transmittance, and Silica-Hard-Clad for improved mechanical durability. Our optical fiber light guides are characterised by excellent light transmission and high numerical aperture, even under demanding operating conditions.
Manufacturing Depth for Complex Assemblies
Our fiber assemblies are produced in a process where optics and precision mechanics are closely integrated. Every assembly undergoes rigorous quality controls in accordance with ISO 9001:2015, for end-to-end traceability and the highest process reliability. We support you from the feasibility study through to validated series production.
Our Services at a Glance
Robust complete solutions for reliable signal transmission.
Our range of high-quality fiber materials is designed for use under extreme conditions. Combined with durable protective jackets made of stainless steel, silicone or PVC, our cables provide permanently stable light guidance, even under high thermal and mechanical stress.
Precision units ready for integration into complex systems.
We produce assemblies where specialised light guides and precise mechanical components work together. Through extensive manufacturing depth and rigorous production controls in accordance with ISO 9001:2015, we deliver plug-and-play solutions that integrate seamlessly into industrial or medical technology environments.
Flexibility and precision for optical applications.
Our flexible light guides are optimised for excellent light capture and efficient transmission. They are suited for projects requiring a high numerical aperture and fine-resolution imaging in tight spaces, whether in sensor technology or lighting applications.
Manufacturing Process
To ensure our light guides and fiber optic products meet the highest standards, we rely on a specialized manufacturing process. This allows us to guarantee exceptional chemical and tactile robustness so they can perform optimally in their respective environments. Precision is a critical factor in this, true to our motto: “Making the impossible happen.”
Materials Used
- Borosilicate: Glass with high temperature resistance and chemical resilience.
- PMMA (Polymethylmethacrylate): A thermoplastic, lightweight plastic with high light transmittance.
- Silica-Hard Clad: A robust plastic coating for improved strength and durability.
- Silica-Silica for UV and NIR Wavelengths: Our specialized glass fibers, optimized for the transmission of light in the ultraviolet (UV) and near-infrared (NIR) ranges.
Optional Specifications:
- Various apertures available
- Polarization can be maintained
- Anti-reflection coating possible
- Various lengths, diameters, bending radii, converters, and vacuum feedthroughs optional
- Various connectors and ferrules suitable for industry and medicine
Quality / made in Germany
Our custom fiber optic solutions are developed and manufactured with the highest precision at our facilities in Germany. We combine engineering expertise with extensive manufacturing depth to produce optical fiber systems tailored to your industrial, medical or sensor-related requirements.
From the selection of the optimal fiber material, whether fused silica, borosilicate, PMMA or Silica-Hard-Clad, through to complex assembly, every step is subject to rigorous quality controls in accordance with ISO 9001:2015. The result: durable and robust products that deliver excellent light transmission and process reliability, even in demanding environments. We support you from the initial feasibility study through to validated series production.
Learn more
Do you need further information, a customized quote, or expert advice for your project? We are always available to assist you.

Reliability doesn’t happen by chance.
At FOS Inon Optics, quality is not just a promise—it is a standard that can be measured. Our development and manufacturing processes for fiber-optic systems are ISO 9001:2015 certified. This establishes the foundation for reliable performance, reproducible results, and trust wherever optical precision is critical.





