Frequency-doubled, a diode-pumped, solid-state laser

摘要

Frequency-doubled solid-state laser, comprising– a laser crystal (5) downstream of type ii frequency-doubling within a laser cavity, and not linear crystal (6) and– an optical element (7) within the cavity, which the frequertzverdoppelnden crystal (6) before - or is arranged downstream in the direction of polarization of each, of the along the crystal axes of the frequency-doubling crystal (6) transmitted and linearly polarized component of the light, in case of double passage through the optical element (7), in a polarization state, the relative to the to the principal axes of the optical element in the 45° - angle is symmetrical direction lying,wherein the optical element (7) the action of a λ / 8 - plate has.