EFFICIENT LASER-DIODE-PUMPED NEODYMIUM-DOPED CALCIUM-NIOBIUM-GALLIUM-GARNET LASER

Authors
NAITO K YOKOTANI A SASAKI T OKUYAMA T YAMANAKA M NAKATSUKA M NAKAI S FUKUDA T TIMOSHECHKIN MI
Citation
K. Naito et al., EFFICIENT LASER-DIODE-PUMPED NEODYMIUM-DOPED CALCIUM-NIOBIUM-GALLIUM-GARNET LASER, Applied optics, 32(36), 1993, pp. 7387-7390
Citations number
5
Categorie Soggetti
Optics
Journal title
Applied optics → ACNP
ISSN journal
00036935
Volume
32
Issue
36
Year of publication
1993
Pages
7387 - 7390
Database
ISI
SICI code
0003-6935(1993)32:36<7387:ELNC>2.0.ZU;2-3
Abstract
Efficient lasing of Nd:Ca (Nb, Ga)(2-x) Ga-3-garnet (CNGG) disordered crystal pumped by a laser diode was demonstrated. In the end-pumped cw lasing experiment with a single-stripe diode, a slope efficiency of 2 4.2% and a maximum optical conversion efficiency of 19.3% were obtaine d. It was shown that the dependence of cw output power on the pump wav elength is insensitive compared with Nd:YAG because of the broad pump absorption bandwidth of Nd:CNGG. From the diode-bar-pumped experiment, it was confirmed that Nd:CNGG is a promising material for diode-bar p umping to obtain high average power with good beam quality, because of its advantages of a broader pump absorption band compared with that o f Nd:YAG and the higher thermal conductivity compared with Nd-doped gl asses.