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Proceedings Paper

Comparison between Nd:YAG and Nd:YLF laser oscillators, end pumped by high-brightness diode laser arrays
Author(s): Raphael Lavi; Steven M. Jackel; Sagie Tsadka; Ofer Levi; Raphael Lallouz
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Paper Abstract

With the goal of developing high efficiency diffraction limited, high repetition rate lasers, a 2 watt quasi-cw diode laser (SDL 2272-P1) was used to end pump Nd:YAG and Nd:YLF slabs. The 1 X 200 micrometers diode stripe was coupled via two lenses and an anamorphic prism pair to the TEM00 mode of the cavity with an efficiency of 83%. A total light to light conversion efficiency of 44% was achieved in the free-running Nd:YAG laser with a slope efficiency of 48% when pumped at 808 nm. The measured efficiency in the free-running Nd:YLF when pumped in the (sigma) polarization at 809 nm was 32% with a slope efficiency of 34%. When pumped in the (pi) polarization, the corresponding Nd:YLF values were 25% and 28%, respectively. In both Nd:YAG and Nd:YLF, the output laser beam was diffraction limited at repetition rates of up to 1 kHz.

Paper Details

Date Published: 13 August 1993
PDF: 11 pages
Proc. SPIE 1971, 8th Meeting on Optical Engineering in Israel: Optical Engineering and Remote Sensing, (13 August 1993); doi: 10.1117/12.150994
Show Author Affiliations
Raphael Lavi, Soreq Nuclear Research Ctr. (Israel)
Steven M. Jackel, Soreq Nuclear Research Ctr. (Israel)
Sagie Tsadka, Soreq Nuclear Research Ctr. (Israel)
Ofer Levi, Soreq Nuclear Research Ctr. (Israel)
Raphael Lallouz, Soreq Nuclear Research Ctr. (Israel)

Published in SPIE Proceedings Vol. 1971:
8th Meeting on Optical Engineering in Israel: Optical Engineering and Remote Sensing
Moshe Oron; Itzhak Shladov; Yitzhak Weissman, Editor(s)

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