Output couplers are used in stable laser resonators in order to emit a part of the energy, which is circulating in the laser cavity. Front surface of output couplers is partially reflective coated at a certain wavelength range, while the rear surface is antireflective coated in order to prevent Fresnel reflection losses. What is more, these laser cavity output couplers can be successfully implemented as fixed ratio laser power attenuators for a certain wavelength range.

Main features

■ Mirror substrates fabricated from high-quality UV grade fused silica

■ Standard substrate dimensions ø25,4 x 5 mm

■ 50% - 99% reflectance selection at most popular wavelength ranges

■ Custom coatings, substrate material and dimensions available upon request