Please note that this website uses cookies. By clicking “Agree” or continuing to browse, you agree to the use of cookies. You can revoke your consent at any time by changing your web browser settings. More about cookies – Cookie Policy.


Wavelength Separators

Three round wavelength separators in reflective pink color

Wavelength Separators

Wavelength range

190 – 3000 nm


5 – 200 mm


Round, rectangular

Surface quality, S-D

20-10, 10-5*

Surface flatness, P-V

<λ/8 @ 632.8 nm**


>10 J/cm² @ 1064 nm, 10 ns, 10 Hz***

*depending on material
and size
**depending on coating design
***higher values possible  

Are you interested?
Don’t hesitate and fill request form.

Fill request form

Wavelength separator

The wavelength separator is known by many names that relate to its different applications – such as a dichroic mirror, beam combiner or harmonic beam splitter. This product is used to separate (or combine) spectral regions in space by exploiting dielectric thin-film design.

Typical applications for a wavelength separator are filtering fundamental wavelength remains from a second harmonic or letting a pump wavelength pass into a resonator through the back of the mirror.

We design standard items for most common laser wavelengths, but Altechna also offers custom-designed separators in terms of wavelength, size and performance. It is worth mentioning that most of our wavelength separators are coated with sputtering technology, ensuring a high level of performance and durability.

We have a team of experienced coating engineers and metrology capabilities to prototype and transfer your idea into a well-defined production process. Contact us for help with your challenge: [email protected]


Need some help with product specifications?

Fill request form