Output coupler (OC) is a partially reflecting dielectric mirror
used in a laser cavity. It has a function to transmit a part of
intracavity optical power in order to get a lasing. Output couplers
listed below can be found in stable resonators, as they have a spatially
constant reflection/transmission (R/T) value, which is the main
property of such kind of mirror. Such cavity's parameters as pump power
threshold, maximum output power and laser efficiency highly depends on
R/T ratio of output coupler. Thus choosing a right output mirror for a
cavity design is quite a crucial moment. For user's convenience
maintains commonly used output couplers for high intensity intracavity
use. Rear surface is antireflective coated in order to minimize Fresnel
reflections. Concave mirrors help to maintain TEM00 spatial mode within
the resonator while wedged mirror deflect Fresnel reflection that could
be amplified within resonator and form secondary (parasitic) pulse.
Suitable for use in high intensity intracavities
Rare surface AR coated
Curves mirrors with various values of ROC are available