Vacuum Adapter Fiber Feedthroughs Without Flange
For laser welding and O-ring sealing in CF, KF, and ISO-K flanges
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
Vacuum fiber optic feedthroughs without flange are designed for flexible use in UHV, XHV, and cryogenic applications. They are fully configurable, supporting SM, MM, or PM fibers and standard connectors like FC, SMA 905, and ST.
Weldable feedthroughs are made for direct laser welding into CF, KF, or ISO-K flanges. They are ideal for extreme vacuum and low-temperature conditions. The internal zirconia sleeve is replaceable if damaged.
O-ring sealed feedthroughs are easy to install and replace. They can be returned to SQS for connector repolishing and also allow replacement of the internal zirconia sleeve.
Advantages
- Compatible with FC, SMA 905 or ST connectors
- Suitable for applications with SM, MM or PM optical fibers
- Available as standalone or flange-mounted versions
- Options for laser-welded or O-ring sealed housing
- Helium leak rate guaranteed: 10⁻¹⁰ to 10⁻¹² mbar·l/s
- Fully UHV-compatible design
Applications
- Vacuum Technology – Optical transmission in high and ultra-high vacuum
- Semiconductor Industry – Fiber optics for cleanroom and vacuum processes
- Tokamaks – Hermetic optical links for plasma research
- Aerospace – Fiber optic feedthroughs for space and high-altitude applications
- Laser Systems – Secure optical connections for high-power laser applications
- Medical Technology – Fiber optic solutions for vacuum-sealed medical devices
Technical Specifications
| Adapter interface (female) | FC/APC, FC/PC, SMA 905 or ST/PC |
| Fiber type | SM, MM, PM |
| Helium leak rate [mbar.l/s/] | 10 -10 to 10 -12 |
| Feedthroug body material | Stainless steel 304L, or other |
| Insertion loss [dB] | max. 0.8 (typ. 0.5) @ 1310/1550 nm* |
| Operating temperature [°C] | -40 to +200, -20 to +70 (PM fiber version) |
| Sealing method in the panel | Viton O-ring or laser welding |
*) Possibly also other wavelengths
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
