Open AccessEfficient conversion of a 1064 μm Nd:YAG laser to the eye-safe region using a diamond Raman laser
Author(s) -
Alexander Sabella,
James A. Piper,
Richard P. Mildren
Publication year - 2011
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.023554
Subject(s) - raman laser , materials science , optics , laser , raman spectroscopy , diamond , optoelectronics , laser beam quality , energy conversion efficiency , raman scattering , laser beams , physics , composite material
We report an efficient 1.485 μm external cavity diamond Raman laser operating on the 2nd Stokes shift of a 1.064 μm Nd:YAG pump laser. 1.63 W pulsed at 5 kHz is produced with a quantum conversion efficiency of 71% and excellent beam quality. Numerical modelling confirms that optimal operation is achieved with low output coupling reflectivity.