--- title: Soldered Optics & Adhesive-Free Optical Mounting | PHOTONICPARTS description: Soldered optics and adhesive-free optical mounting for robust photonic systems, vacuum applications, thermal cycling and high-power laser environments. --- [Skip to content](https://photonicparts.com/soldered-optics#main-content) [![PHOTONICPARTS_Logo_Full](https://photonicparts.com/hs-fs/hubfs/Logos/PHOTONICPARTS_Logo_Full.png?width=3125&height=338&name=PHOTONICPARTS_Logo_Full.png)](https://photonicparts.com/) - [Technology](https://photonicparts.com/technology) - [Products](https://photonicparts.com/products) Show submenu for Products - [Overview](https://photonicparts.com/products) - Crystal Packages Show submenu for Crystal Packages - [Rod Crystal Packages](https://photonicparts.com/products/rod-crystal-packages) - [Slab Crystal Packages](https://photonicparts.com/products/slab-crystal-packages) - [Conversion Crystal Modules](https://photonicparts.com/products/conversion-crystal-modules) - [High Power Laser Diodes](https://photonicparts.com/high-power-laser-diode-packages-photonicparts) - [Faraday Devices](https://photonicparts.com/rotators) - [Soldered Optics](https://photonicparts.com/soldered-optics) - [High Precision Mirror Mounts](https://photonicparts.com/products/high-precision-mirror-mounts) - [Customized Packaging Solutions](https://photonicparts.com/solutions) - [Solutions](https://photonicparts.com/solutions) - [Company](https://photonicparts.com/about_us) Show submenu for Company - [About us](https://photonicparts.com/about_us) - [In-House Capabilities](https://photonicparts.com/in-house-capabilities) - [Management](https://photonicparts.com/management) - [Tradefairs and Shows](https://photonicparts.com/tradefairs) - [Funding Projects](https://photonicparts.com/funding-projects) Open main navigation Close main navigation - [Technology](https://photonicparts.com/technology) - [Products](https://photonicparts.com/products) Show submenu for Products - [Overview](https://photonicparts.com/products) - Crystal Packages Show submenu for Crystal Packages - [Rod Crystal Packages](https://photonicparts.com/products/rod-crystal-packages) - [Slab Crystal Packages](https://photonicparts.com/products/slab-crystal-packages) - [Conversion Crystal Modules](https://photonicparts.com/products/conversion-crystal-modules) - [High Power Laser Diodes](https://photonicparts.com/high-power-laser-diode-packages-photonicparts) - [Faraday Devices](https://photonicparts.com/rotators) - [Soldered Optics](https://photonicparts.com/soldered-optics) - [High Precision Mirror Mounts](https://photonicparts.com/products/high-precision-mirror-mounts) - [Customized Packaging Solutions](https://photonicparts.com/solutions) - [Solutions](https://photonicparts.com/solutions) - [Company](https://photonicparts.com/about_us) Show submenu for Company - [About us](https://photonicparts.com/about_us) - [In-House Capabilities](https://photonicparts.com/in-house-capabilities) - [Management](https://photonicparts.com/management) - [Tradefairs and Shows](https://photonicparts.com/tradefairs) - [Funding Projects](https://photonicparts.com/funding-projects) - [Contact us](mailto:info@photonicparts.de) [Contact us](mailto:info@photonicparts.de) # Soldered Optics - Adhesive-Free Mounting for Robust Photonic Systems PHOTONICPARTS develops solder-based mounting solutions for optical components where conventional adhesives reach their limits. By combining solderable thin-film metallization, CTE-matched submounts and flux-free soldering, optical components can be integrated into compact, vacuum-compatible and mechanically robust assemblies. This makes the technology highly suitable for application in harsh environments like defense, space and aerospace. - ![PHOTONICPARTS_RETRO_BG](https://photonicparts.com/hs-fs/hubfs/PHOTONICPARTS_RETRO_BG.jpg?width=3000&height=2000&name=PHOTONICPARTS_RETRO_BG.jpg) Soldered retro reflector - ![Seite12 Bild2](https://photonicparts.com/hs-fs/hubfs/Seite12%20Bild2.jpg?width=6000&height=4000&name=Seite12%20Bild2.jpg) CTE-matched quartz prism submount - ![PHOTONICPARTS_LENS_BG](https://photonicparts.com/hs-fs/hubfs/PHOTONICPARTS_LENS_BG.jpg?width=3000&height=2000&name=PHOTONICPARTS_LENS_BG.jpg) Soldered Lens on Submount - ![PHOTONICPARTS_CTESubmount](https://photonicparts.com/hs-fs/hubfs/PHOTONICPARTS_CTESubmount.jpg?width=1626&height=1149&name=PHOTONICPARTS_CTESubmount.jpg) Solid Etalon soldered on CTE-matched submount - ![Seite13 Bild3](https://photonicparts.com/hs-fs/hubfs/Seite13%20Bild3.jpg?width=6000&height=4000&name=Seite13%20Bild3.jpg) CTE matched Optic Adapter Ring - ![C88A1563](https://photonicparts.com/hs-fs/hubfs/C88A1563.jpg?width=6260&height=4173&name=C88A1563.jpg) Soldered optical mirror on CTE-matched baseplate --- ![Seite14 Bild5](https://photonicparts.com/hs-fs/hubfs/Seite14%20Bild5.jpg?width=2000&height=1333&name=Seite14%20Bild5.jpg "Seite14 Bild5") ### Adhesives can become a limiting factor when optical systems are exposed to:  - elevated temperatures - thermal cycling - vacuum - UV radiation - mechanical shock and vibration - high optical power - long operating lifetimes   ##  How Flux-Free Soldering of Optical Components Works  Optical components can be used in their original form without requiring a pre-applied solderable coating. At PHOTONICPARTS, we apply a **locally defined solderable thin-film metallization directly onto the optical component using sputter deposition**. Where required, solder or solder alloys can also be deposited by PVD processes, enabling precise control of the solder material, layer thickness and local deposition area. The metallized optical component is subsequently joined to a carefully selected, typically CTE-matched submount using our flux-free soldering technology. By tailoring the **metallization system, solder alloy, solder layer thickness and submount material** to the optical substrate and operating conditions, thermally induced stress and deformation can be minimized while creating mechanically robust, vacuum-compatible and highly reproducible joints. Typical optical components include mirrors, lenses, prisms, etalons, retroreflectors, laser crystals and other precision optical elements. --- ## Active Solder Alignment ### Optical components for machine-assisted assembly Our active solder alignment technology enables repeatable and precise positioning of optical components within a molten solder interface. Local remelting using integrated heaters allows optical elements to be repositioned and subsequently fixed with low mechanical stress — without conventional adhesive bonding or bulky adjustment mounts. The result is a compact, robust and precisely aligned optical assembly.    - Repeatedly adjustable while the solder is molten - Suitable for integration into automated assembly processes - Completely adhesive-free and suitable for vacuum environments - Integrated heater and temperature sensor available ![IMG_2522](https://photonicparts.com/hs-fs/hubfs/PP_kompBilder/IMG_2522.jpg?width=1285&height=1091&name=IMG_2522.jpg "IMG_2522") Your Browser does not support the video tag. **![PHOTONICPARTS_Logo_Full](https://photonicparts.com/hs-fs/hubfs/Logos/PHOTONICPARTS_Logo_Full.png?width=250&height=27&name=PHOTONICPARTS_Logo_Full.png)** Ericsson-Allee 1 52134 Herzogenrath Germany [Follow us on LinkedIn](https://www.linkedin.com/company/photonicparts/) [envelope icon](mailto:info@photonicparts.de) [Follow us on Facebook](https://twitter.com/PHOTONICPARTS)       - [Technology](https://photonicparts.com/technology) - [Products](https://photonicparts.com/products) - [Solutions](https://photonicparts.com/solutions) - [Company](https://photonicparts.com/about_us) [![PHOTONICPARTS_Logo_Icon](https://photonicparts.com/hs-fs/hubfs/Logos/PHOTONICPARTS_Logo_Icon.png?width=1200&height=867&name=PHOTONICPARTS_Logo_Icon.png "PHOTONICPARTS_Logo_Icon")](https://photonicparts.com) [Legal Notice](https://photonicparts.com/legal-notice)| [Privacy Policy](https://photonicparts.com/privacy-policy) © 2026 PHOTONICPARTS