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Proceedings Paper

High-power side-pumped Nd:YVO4 laser using a grazing incidence cavity
Author(s): Heather Ralph; Andrew J.W. Brown; Tracy W. Vatter; Roy D. Mead
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Paper Abstract

A grazing incidence geometry was used tom ake compact, high power, efficient TEM00, Nd:YVO4 oscillators and amplifiers. A side-pumped Nd:YVO4 laser based on a grazing incidence cavity design, pumped with a 50 W diode bar, achieved 30% optical to optical efficiency at 50 kHz and M2= 1.4 x 1.1 output. The alser was acousto-optically Q-switched and was operated at repetition rates from 20 to 100 kHz, as well as operating continuous-wave (CW). Multiple cavity designs were developed to optimize performance for short (<10ns) and longer (>30ns) pulse durations. 15 W of TEM00 output was generated at 50 kHz and used to pump a periodically poled lithium niobate (PPLN) optical parametric oscillator (OPO), generating 5 W of eye safe output at 1.5 μm. This oscillator/OPO system was packaged on a 4 x 6 inch optical platform. Using an oscillator/amplifier/amplifier configuration, 30 W of 1.064 μm output power was generated at 50kHz and subsequently converted in an OPO to 10.25 W of eye safe output in a PPLN OPO. This work demonstrates that the side-pumped grazing incidence geometry scales to high power and maintains M2 and efficiency while fitting in a compact package.

Paper Details

Date Published: 17 June 2003
PDF: 9 pages
Proc. SPIE 4968, Solid State Lasers XII, (17 June 2003); doi: 10.1117/12.478957
Show Author Affiliations
Heather Ralph, Aculight Corp. (United States)
Andrew J.W. Brown, Aculight Corp. (United States)
Tracy W. Vatter, Aculight Corp. (United States)
Roy D. Mead, Aculight Corp. (United States)


Published in SPIE Proceedings Vol. 4968:
Solid State Lasers XII
Richard Scheps, Editor(s)

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