Single-Frequency Ti:Al2O3 Ring Laser

摘要

The Ti: Al2O3 laser is a widely tunable infrared laser with outstanding performance. The advantages of the Ti:Al2O3 laser over the infrared dye laser are greater convenience and more stable operation. Over 500 mW of single-frequency power has been obtained from a Titanium: Aluminum Oxide (Ti: Al2O3) ring laser pumped by 10 W (all lines) from an argon ion laser. The ring laser can be tuned from 750 to 850 nm while maintaining more than 100 mW in single-frequency operation without realignment or a change of optics. The free-running frequency stability of the laser is 2 MHz. Thermal effects cause changes in the ring cavity parameters, limiting the output power. This ring laser has also been operated with an acoustooptic mode locker to obtain 200 ps mode-locked pulses at 250 MHz with nearly the same average power as in single-mode operation. Reprints. (AW)