
Pressure Fiber Optic Feedthroughs
High-Pressure Fiber Optic Feedthroughs Up to 100 MPa

Basic Information
Contact
For any technical questions or inquiries, please do not hesitate to contact us.

Sales Department
Tel.: +420 493 765 111
sales@sqs-fiber.cz

SQS manufactures custom fiber optic feedthroughs for demanding industrial applications. We seal SM and MM optical fibers—from UV to IR wavelengths—using glass solder or epoxy into standard or custom flanges. Our feedthroughs are designed for high-pressure environments and offer reliable, hermetically sealed performance.
With decades of experience, SQS provides tailored solutions that meet diverse requirements, including extreme temperatures, chemical resistance, and high transmission channel density. Our feedthroughs are trusted in mining, oil and gas, military, aerospace, and chemical processing industries.
Advantages
- Wide range of connectors to suit your application
- SM or MM optical fibers sealed with glass solder or epoxy
- NPT, SAE, DN or custom feedthrough body
- Made of stainless steel
- Withstands pressure differences up to 100 MPa
Applications
- Mining and mineral processing
- Oil and gas exploration and production
- Military and defense systems
- Chemical processing industries
- High-pressure industrial automation
- Aerospace applications
Technical Specifications
Pressure difference [MPa]* | Up to 100 |
Operating temperature [°C]** | -40 to +200 |
Sealing material | Glass solder or epoxy |
Helium leak rate [mbar.l/s] | 10 -6 to 10 -12 |
Fiber type | SM or MM |
Mechanical protection of fibers | Stainless steel flexible tubing, 900 μm PTFE or custom tubing |
Flange type | NPT, SAE, DN or customer flange |
Flange material | Stainless steel |
Channels/fibers | The number of channels in the flange is determined by the flange size |
Connector interface | Stainless steel version: FC, ST, SMA905, MIL-DTL-38999 and others |
*) Depends on the configuration of the entire product
**) Depends on the type of fiber used
Contact
For any technical questions or inquiries, please do not hesitate to contact us.

Sales Department
Tel.: +420 493 765 111
sales@sqs-fiber.cz
