Introduction | Substrate
Materials | Substrate Specifications
the Right Material
The primary criterion for selecting the substrate
material is the wavelengths it will see.
Because of its better thermal properties, fused silica is
usually preferred over BK-7 as a substrate in high power
applications. However, BK-7 is just as suitable in many
cases and its lower cost may be a deciding factor when
buying a large number of components. In addition to fused
silica we keep BK-7 in stock and will gladly supply
coated or uncoated BK-7 optics if these are appropriate.
TecOptics also has vast experience in fabricating
substrates from many other materials such as ZerodurÆ and IR fused silica. We are
happy to supply these specialized requirements.
TecOptics employs only the very highest grade materials
in the fabrication of substrates. Our long experience in
the production of ultra-precise components and high
energy laser optics clearly established that any
compromise in material quality is a false economy that
can result in serious degradation or even failure of an
All our optical
materials have very low, or even zero, bubbles and
inclusions with excellent refractive index homogeneity.