✦ LIBER ✦
Thermal-lens measurement of a quasi steady-state repetitively flashlamp-pumped Cr, Tm, Ho:YAG laser
✍ Scribed by D.G Lancaster; J.M Dawes
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 265 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0030-3992
No coin nor oath required. For personal study only.
✦ Synopsis
A simple technique using cavity stability conditions is demonstrated to measure the eective dynamic thermal lensing of a ¯ashlamp-pumped Cr, Tm, Ho:YAG laser operated in a low repetition-rate regime of 4±7 Hz. By measuring the ¯ashlamp energy where a stable resonator becomes unstable, the eective focal length of the laser rod can be calculated. When no mode restricting aperture is used in the cavity, the thermal lens behaviour displays a signi®cant deviation from the commonly assumed thin lens approximation.