High-Power Laser Optics - Laser Resonator Mirrors

The laser resonator is the core of the laser. It is where the laser beam is generated. It consists of a fully reflective mirror and a partially reflective mirror. Between them is the laser-active medium, which is excited by a pumping mechanism.

The end mirror reflects nearly 100% of the light. The output coupler has a lower defined reflectivity and emits the laser beam from the resonator. If the end mirror also acts as a coupling mirror, it has an anti-reflective coating to increase the pump radiation.

Bena Optics manufactures resonator mirrors for all lasers ranging from 130nm to 7μm. Depending on the type of laser, material combinations and design structures that have proven effective over the years are used. In addition to online products, individual special mirrors are manufactured according to customer requirements.

Resonator mirrors refer to the reflective optical components in the laser resonator. The end mirror is used to reflect the laser beam back into the laser medium, while the output coupler is used to partially reflect the laser beam back into the laser medium and partially output the laser beam.