Using a novel end-pumped, end-cooled geometry, we demonstrated a Nd:YVO4 cw laser that produces close to 2 W of single-mode output when pumped by a high-brightness 100-μm-core diode fiber source. An optical–optical conversion efficiency of 49% was obtained. Beam quality was found to be nearly diffraction-limited (M2 = 1.08) and independent of pumping power.
© 1997 Optical Society of America
Original Manuscript: April 22, 1997
Revised Manuscript: August 21, 1997
Published: November 20, 1997
David C. Brown, Richard Nelson, and Larry Billings, "Efficient cw end-pumped, end-cooled Nd:YVO4 diode-pumped laser," Appl. Opt. 36, 8611-8613 (1997)