ANALYSIS OF THE EFFECT OF NUMERICAL APERTURE ON PR-ZBLAN UP-CONVERSION FIBER LASERS

Authors
ZHAO YX FLEMING S
Citation
Yx. Zhao et S. Fleming, ANALYSIS OF THE EFFECT OF NUMERICAL APERTURE ON PR-ZBLAN UP-CONVERSION FIBER LASERS, Optics letters, 23(5), 1998, pp. 373-375
Citations number
8
Categorie Soggetti
Optics
Journal title
Optics letters → ACNP
ISSN journal
01469592
Volume
23
Issue
5
Year of publication
1998
Pages
373 - 375
Database
ISI
SICI code
0146-9592(1998)23:5<373:AOTEON>2.0.ZU;2-1
Abstract
Theoretical analyses show that the use of high-numerical-aperture (NA) fibers can significantly increase the conversion efficiency of a blue Pr3+-doped fluoride fiber upconversion laser and reduce the pump-powe r threshold. A record high efficiency of similar to 14% and a low 1017 -nm threshold of similar to 30 mW were achieved experimentally with a fiber with a NA of similar to 0.39. (C) 1998 Optical Society of Americ a.