Laser resonator for generating polarized laser radiation

US6754249B2 · kind B2 · utility

Assignee

• UNIVERSITAT BERN · CH

Inventors

• Marc Schmid · Oppenweiler, DE
• Thomas Graf · Bern, CH

Key dates

• Filing date: Sep 6, 2001
• Grant date: Jun 22, 2004
• Expiry date: Sep 6, 2021

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01S3/109
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A method for generating polarized laser output radiation utilizes a laser resonator whose active medium exhibits thermally induced birefringence. The radiation fields oscillating in the laser resonator are not subjected to polarization selection, and only the radiation field exhibiting the desired polarization state (p) is partially output. Only a prescribed polarization of the radiation fields of the laser radiation which can oscillate in the resonator can be partially output from the resonator with a prescribed output level and all differently polarized radiation fields remain in the resonator in a completely reflecting fashion.