Journal
LASER PHYSICS
Volume 19, Issue 5, Pages 1017-1020Publisher
IOP PUBLISHING LTD
DOI: 10.1134/S1054660X09050235
Keywords
-
Categories
Funding
- CONACYT-Mexico [52727-F, 80542]
- Universidad Autonoma del Carmen, Campeche, Mexico
Ask authors/readers for more resources
We report here the efficiency improvement in a fiber Raman laser by splicing to it short pieces of 10000-ppm Yb3+-doped fibers. The amplified spontaneous emission produced by the doped fiber started the stimulated Raman scattering earlier than the spontaneous scattering in the 350-m silica-fiber cavity. In the best case, when splicing to the cavity 127 cm of doped fiber, the pump threshold decreased from 2.9 down to 1.27 W, representing a 56% improvement. This power was close to the theoretical minimum of 1.25 W for very long fibers. The second stokes signal (1175 nm) was only present when the doped fibers were inserted. At 4-W pump, the non-doped cavity delivered 2 W of first stokes signal (1117 nm) that represent a 50% efficiency compared to similar to 3 W delivered (similar to 75%) when a 34-cm doped fiber was inserted. This improvement is intended to reduce the cost of fiber Raman lasers because less powerful sources or shorter fibers are necessary to produce more stokes components.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available