Fully stabilized single-frequency Ti:Al 2 O 3 laser oscillator

Publisher Website
Google Scholar
Abstract
Single-longitudinal-mode (SLM), pulsed operation is demonstrated on a tunable Ti:Al2O3 oscillator that utilizes a glancing-incidence cavity configuration. The oscillator is tunable over 720-915 nm, and the output has a bandwidth that is near transform-limited at equal to or less than 500 MHz. Beam walk-off and diffraction effects define cavity configurations for which SLM operation is possible. Stable SLM operation, without any active stabilization, is achieved with a 6.5-cm long cavity in which the separation between the tuning mirror and the grating is kept small (1.5 cm). The oscillator is actively stabilized by a feedback mechanism that monitors small changes in the direction of the output beam that result from small wavelength deviations. Single-longitudinal-mode operation over several hours has been demonstrated. The temporal jitter of the oscillator is reduced to + or - 1.2 ns while maintaining SLM operation.© (1990) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.

This publication has 0 references indexed in Scilit: