Spectral and energy characteristics of free lasing in neodymium glasses at high temperatures
Abstract
Systematic measurements of the spectral width and output energy of lasing in a number of neodymium glasses were made in the temperature range 300-650 K. It is found that the thermal population of the 4I11/12 level of neodymium plays the role of selective losses in the resonator; these losses lead to a decrease in the lasing output energy and efficiency, and produce a change in the width and position of the stimulated-emission spectrum. This latter effect may be used for the thermal tuning of the emission spectrum of a neodymium laser. At a temperature of 650 K, a lasing spectral width of 18.5 nm was obtained for two silicate neodymium glasses, while a width of 14.0 nm was obtained for two phosphate glasses without tuning of the resonator.
- Publication:
-
Zhurnal Prikladnoi Spektroskopii
- Pub Date:
- April 1982
- Bibcode:
- 1982ZhPS...36..599D
- Keywords:
-
- Glass Lasers;
- Lasing;
- Neodymium Lasers;
- Temperature Effects;
- Laser Outputs;
- Losses;
- Silicates;
- Spectral Line Width;
- Lasers and Masers