Concave–Convex Resonator

The pertinent beam parameters for concave–convex resonators can be calculated if we introduce a negative radius (−R₂) for the convex mirror into (1)–(2).

..........(1)

.......(2)

A small-radius convex mirror in conjunction with a large-radius concave or plane mirror is a very common resonator in high-average-power solid-state lasers. As follows from the discussion in the next section, as a passive resonator such a configuration is unstable. However, in a resonator that contains a laser crystal, this configuration can be stable since the diverging properties of the concave mirror are counteracted by the focusing action of the laser rod. Since the concave mirror partially compensates for thermal lensing, a large mode volume can be achieved

مواضيع ذات صلة

الليزرات والسوائل التي تصعد إلى الأعلى

الليزر والميزر

Flashtube Explosion

Tube Failure

Plane–Parallel Resonator

Plano-Concave Resonator

Mirrors of Equal Curvature

Parasitic Oscillations

Prelasing

Depopulation Losses

The Three-Level System

Absorption of Pump Radiation by the Gain Medium and Transfer of Energy to the Upper Laser Level