METHOD AND LASER PULSE SOURCE APPARATUS FOR GENERATING FS LASER PULSES

摘要

A method of generating fs laser pulses (1), includes steps of creating a circulating light field in a resonator cavity (10) with multiple resonator mirrors (11-18) by pumping at least one gain medium (21, 22) included in the resonator cavity (10), and passing the circulating light field through a first Kerr medium (31) included in the resonator cavity (10), so that the fs laser pulses (1) are formed by self-amplitude modulation of the circulating light field, wherein the resonator cavity (10) includes at least one supplementary Kerr medium (32-36) enhancing the self-amplitude modulation of the circulating light field, and each of the first Kerr medium (31) and the at least one supplementary Kerr medium (32-36) provide different non-linear Kerr lens contributions to the self-amplitude modulation of the circulating light field. Laser pulse source apparatus (100) for generating fs laser pulses (1) is also described.

主权项

1. A method of generating fs laser pulses in a resonator cavity including multiple resonator mirrors, at least one gain medium and a first Kerr medium, comprising the steps of
creating a circulating light field in the resonator cavity with the multiple resonator mirrors by pumping the at least one gain medium, and passing the circulating light field through the first Kerr medium included in the resonator cavity, so that the fs laser pulses are formed by self-amplitude modulation of the circulating light field, wherein the resonator cavity further includes at least one supplementary Kerr medium enhancing the self-amplitude modulation of the circulating light field, wherein each of the first Kerr medium and the at least one supplementary Kerr medium provides different non-linear Kerr lens contributions to the self-amplitude modulation of the circulating light field.