Wide-Bandwidth Feedback Loop Cuts Jitter in Output of a Commercial CW Dye Laser.

摘要

Rapid improvements in the performance of commercial single-frequency continuous wave dye lasers during the past two years have made it easy to obtain a system with a free-running linewidth of about 15 megahertz. Linewidth can be reduced to about 2 Mhz with a simple feedback loop using an external Fabry-Perot as a frequency reference. Some applications require much narrower linewidth. Here we report frequency stabilization of two commercial cw dye lasers with wideband feedback loops that require only a small modification to the laser cavity. The technique should be extendedable to other cw dye models. (Author)