DocumentCode
969932
Title
Reduction of thermally induced lenses in Nd:YAG with low temperatures
Author
Glur, Hansjürg ; Lavi, Raphael ; Graf, Thomas
Author_Institution
Inst. of Appl. Phys., Univ. of Bern, Switzerland
Volume
40
Issue
5
fYear
2004
fDate
5/1/2004 12:00:00 AM
Firstpage
499
Lastpage
504
Abstract
At high pump powers, Nd:YAG lasers suffer from thermally induced optical effects such as graded-index lenses, birefringence, and bi-focusing. Due to more favorable material properties at low temperatures, the thermal lenses are significantly reduced by cryogenic cooling. In the present study, we measured the thermal lens in a Nd:YAG rod to be reduced by more than an order of magnitude when cooled with liquid nitrogen.
Keywords
birefringence; cooling; gradient index optics; lenses; low-temperature techniques; neodymium; nonlinear optics; optical focusing; solid lasers; thermal lensing; Nd:YAG lasers; Nd:YAG rod; YAG:Nd; YAl5O12:Nd; bifocusing; birefringence; cryogenic cooling; graded-index lenses; high pump powers; liquid nitrogen; low temperatures; material properties; thermal lenses; thermally induced lenses; thermally induced optical effects; Birefringence; Cryogenics; Laser excitation; Lenses; Material properties; Optical pumping; Power lasers; Pump lasers; Temperature; Thermal lensing;
fLanguage
English
Journal_Title
Quantum Electronics, IEEE Journal of
Publisher
ieee
ISSN
0018-9197
Type
jour
DOI
10.1109/JQE.2004.826448
Filename
1291707
Link To Document