Efficient ASE Management in Disk Laser Amplifiers With Variable Absorbing Clads

Author

Slezak, Ondrej ; Lucianetti, Antonio ; Mocek, Tomas

Author_Institution

Inst. of Phys., HiLASE Centre, Dolni Brezany, Czech Republic

Volume

50

Issue

12

fYear

2014

fDate

Dec. 2014

Firstpage

1052

Lastpage

1060

Abstract

We illustrate the benefits of multilayer cladding for efficient amplified spontaneous emission control and safe heat removal in high-energy class solid-state lasers. The radial thermal gradients in disk amplifiers can vanish when the absorption values in the multilayer cladding are properly designed, allowing gradual heat absorption outside the gain medium. Wavefront deformation and thermal stress birefringence were evaluated and an innovative approach based on multilayer cladding is proposed.

Keywords

birefringence; light absorption; optical multilayers; solid lasers; superradiance; thermal stresses; thermo-optical effects; ASE management; amplified spontaneous emission control; disk laser amplifiers; gain medium; heat absorption; high-energy class solid-state lasers; multilayer cladding; radial thermal gradients; safe heat removal; thermal stress birefringence; variable absorbing clads; wavefront deformation; Absorption; Doping; Equations; Heating; Laser beams; Laser excitation; Mathematical model; Birefringence; thermal and stress effects; thermooptic effects;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/JQE.2014.2366132

Filename

6942176