Overview coating types

HR : High Reflection Coating

for highest reflection, used as
– cavity mirror
– full reflector
– bending mirror
also available as
– metallic mirror

Subtypes for HR-Coatings see here

PR : Partial Reflection Coating

for splitting or reducing the incoming light, used as
– partial reflector,
– output coupler,
– attenuator,
– beam splitter,
also available as
– non polarizing beam splitter

Subtypes for PR-coatings see here

Filter : HR/PR + AR Coating

Combination of AR and HR or PR coatings for separating wavelengths, used as
– long / short wave pass
– steep edge filter
– band pass / interference filter
– notch / negative filter
– dichroic filter
– harmonic beam separator
or for combining laser beams, used as
– beam sampler
– combining mirror
– pump mirror

Subtypes for Filter see here

Polarizer

Separates the polarizations, coated on plates for
– thin film polarizer (TFP)
also available for
– cube polarizer
– broadband polarizer
works also as
– polarization sampler

Subtypes of Polarizers see here

For more informations about Polarizer
( Thin Film / Cube / Broadband ) click here

Variables : Variable Attenuator / Gradient Coating

for changing the transmission / reflection ratio with the angle, used as
– variable attenuator
or with the beam position used as
– gradient output coupler
– gradient attenuator
– gradient pass filter
– gradient interference filter

Subtypes for Variables see here

For more informations about
– Variable Attenuators click here
– Gradient Output Couplers and Filters click here
– Reflection Filters click here