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.


Laser Output Coupler

Three round laser output couplers in transparent pink color

Laser Output Coupler

Wavelength range

190 – 3000 nm


5 – 200 mm


Round, rectangular

Surface quality, S-D


Surface flatness, P-V

<λ/8 @ 632.8 nm*

Angle of Incidence



>10 J/cm² @ 1064 nm, 10 ns, 10 Hz

*depending on size

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

Fill request form

Laser output coupler

A laser output coupler is a semi-transparent dielectric mirror used in a laser cavity. It has the function of transmitting part of the circulating intracavity optical power.

A spatially constant reflection/transmission (R/T) value is the main property of a partially reflecting mirror in a stable resonator in Nd:YAG, Nd:YLF, Ti:Sapphire, and other lasers. Some laser cavity parameters, such as pump power, maximum output power, and laser efficiency, depend highly on the R/T value of the output coupler.

We have a wide variety of shapes of output couplers, and these can be customized according to your needs: concave semi-transparent mirrors can help to maintain TEM00 spatial mode within a resonator, while wedged ones deflect Fresnel reflections and prevent secondary pulse creation and amplification.

We have a team of experienced coating engineers and extensive metrology capabilities for designing and measuring products to meet your requirements. We focus on having a well-defined production process, high-quality parts and test reports, so you can get more than expected.

Contact us to tell us about the challenges you are facing: [email protected]


Need some help with product specifications?

Fill request form