Optical Substrates made of High-Quality Glass
Substrates made of various special glasses
Optical substrates form the basis of many optical components, ranging from simple optics to highly complex interference filters and precision mirrors. Their optical quality is critical to the performance of the respective component.
A substrate determines the mechanical stability, thermal behavior, and optical properties of the optical coating system subsequently applied to it. Therefore, the selection of the appropriate material and the precision of its properties are crucial for the functionality of applications in research, science, photonics, laser technology, and metrology.
Below is a list of links to a selection of our materials suitable as bases for optical substrates: Translated with DeepL.com (free version)
Please select a glass substrate:
Quartz glass substrates and quartz microscope slides of Fused Silica
Selected float glass substrates
Partially transmitting substrates
Substrate made of ULE™ ultra-low expansion glass
Substrate made of ZERODUR®zero expansion glass-ceramic
Multilayer-broadband anti-reflection coated substrates
Substrates with an oil-repellent (oleophobic) anti-reflection coating
Wafer substrates made of specialty glass
In many applications, only one side of a substrate material must have high surface quality and flatness because a substrate is usually not used for transmission. However, our glass substrates can also be double-side polished (see "Optical Windows"). We can customize them for unique surface quality or flatness requirements. Furthermore, we can apply custom coatings in a custom coating run. We manufacture high-quality optical substrates and also optics with laser quality from nearly any suitable glass material available on the market.
Can't find the optical substrate you need for your optics application in the list above?
If you cannot find the optical substrate or material you are looking for in the list above, please consider using our RFQ form to send a request. We also manufacture optical substrates and optics from materials not listed here.
© 1994 – 2026 Präzisions Glas & Optik GmbH
Last update: April 7, 2026