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Proceedings Paper

High Power Quasi-Cw And Cw Laser Diode Bar Arrays
Author(s): Carolyn A Krebs; Bill D Vivian
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Paper Abstract

Laser diode pumped, solid state lasers provide an efficient, compact, reliable, and stable source for many applications. We have previously demonstrated a diode pumped Nd:YAG slab laser that achieved over 100 mJ Q-switched output at 20 Hz with greater than 4% efficiency. Recent advances at MDAC-STL in laser diode performance and efficiency predict that over 10% is now achievable. In addition, we have demonstrated a five-fold increase in laser diode array peak power and an order of magnitude increase in array average power capability. Last year, we demonstrated a laser diode bar side-pumped, Nd:YAG rod laser with 2W cw fundamental mode output at 3% efficiency. We have recently extended cw pumping to two-dimensional laser diode bar arrays. We achieved over 50 W/cm2 cw operation from a 0.28 cm2, 2-D bar array with good efficiency. Array cooling was conductive to a water-cooled heat exchanger. This achievement lays the foundation for higher power cw, laser diode pumping of slab geometry lasers.

Paper Details

Date Published: 9 August 1988
PDF: 3 pages
Proc. SPIE 0893, High Power Laser Diodes and Applications, (9 August 1988); doi: 10.1117/12.944349
Show Author Affiliations
Carolyn A Krebs, McDonnell Douglas Astronautics ComPany (United States)
Bill D Vivian, McDonnell Douglas Astronautics Company (United States)

Published in SPIE Proceedings Vol. 0893:
High Power Laser Diodes and Applications
Luis Figueroa, Editor(s)

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