Self-seeding in a dual-cavity-type pulsed Ti:sapphire laser oscillator.

ABSTRACT

We have constructed a self-seeded Tisapphire laser oscillator by using a dual-cavity configuration that consists of a Littman configuration cavity and a partially reflecting feedback mirror. This configuration can be decomposed with two kinds of cavity, a grazing-incidence cavity and a standing-wave cavity. The former behaves as an injection seeder and the latter as a slave oscillator. This Tisapphire laser system is capable of delivering a continuously tunable laser pulse with a narrow linewidth. Injection at the laser emission region of the free-running Tisapphire laser resulted in essentially complete energy extraction.