Temperature Dependence of a Diode-pumped Cryogenic Erbium (Er):Yttrium Aluminum Garnet (YAG) Laser

reportActive / Technical Report | Accession Number: ADA502448 | Open PDF

Abstract:

We report the laser performance of resonantly diode-pumped erbium Eryttrium aluminum garnet YAG from liquid nitrogen temperature to above room temperature. Relative to incident pump power, the best performance was observed at approximately 160 K. Spectroscopy and modeling show that this is due primarily to the changing efficiency of diode pump absorption as the absorption lines broaden with temperature. However, the physics of the ErYAG system indicates that even with an arbitrarily narrow pump linewidth the most efficient laser performance should occur at a temperature somewhat above 77 K. The causes of the temperature dependence are at least qualitatively understood.

Author(s):
Merkle, Larry D. ; Ter-gabrielyan, Nikolay ; Newburgh, G. Alex ; Michael, Arockiasamy ; Dubinskii, Mark
Author Organization(s):
ARMY RESEARCH LAB ADELPHI MD
Supplementary Note:
The original document contains color images. DOI: 10.21236/ADA502448
Pagination:
0032

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
ARL-TR-4885
Monitor Series:
ARL/ADELPHI
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*ABSORPTION SPECTRA, *DIODE LASERS, *YTTRIUM ALUMINUM GARNET, LASERS, ROOM TEMPERATURE, LINE SPECTRA, LIQUID NITROGEN, THERMAL PROPERTIES, ERBIUM, SPECTROSCOPY, SPECTRAL LINES, CRYOGENICS
Field(s)/Group(s):
Inorganic Chemistry, Lasers and Masers
Keyword(s):
SOLID STATE LASER, DIODE PUMPED, YAG, THERMAL EFFECTS
Report Date:
2009 Jul 01
Creation Date:
2009 Aug 12