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US 10,218,146 B2Granted
Laser crystal
AssigneeAtla Lasers AS
InventorIrina T. Sorokina
Life of this patent
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Abstract
The present disclosure provides a method of optimising an optical system of a mode-locked laser oscillator or a regenerative, multi-pass or single pass amplifier. The method may include the steps of identifying crystallographic axes of an active laser gain medium crystal, cutting the crystal, and orienting the crystal in the optical system in a predetermined orientation relative to a propagation vector of a laser pulse depending on the required output of the optical system.
Claims11
An optical system for a mode-locked laser oscillator or a regenerative, multi-pass or single pass amplifier, the optical system comprising:
- an active laser gain medium having a crystalline structure with non-phase-matched second-order optical non-linearity,
- wherein the active laser gain medium is orientated such that a crystallographic axis thereof is parallel to a propagation vector of a laser pulse of laser radiation to reduce generation of a second harmonic of the laser radiation;
- wherein the active laser gain medium comprises a host material selected from the group consisting of sulfides, selenides, and tellurides;
- and
- wherein the active laser gain medium comprises a transition metal ion dopant in the host material.
2 more elements
Dependencies are inferred from the claim text.