Variable Pulse Duration Laser for Material Processing
| Autor: | Jeffrey Gregg, Werner H. Wiechmann, James J. Morehead, Derek J. Richard, Will Grossman, Loren A. Eyres |
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| Rok vydání: | 2007 |
| Předmět: |
Materials science
business.industry Pulse duration Laser pumping Laser Industrial and Manufacturing Engineering Pulse (physics) law.invention Optics law Ultrafast laser spectroscopy Diode-pumped solid-state laser Laser power scaling Electrical and Electronic Engineering business Instrumentation Pulse-width modulation |
| Zdroj: | Journal of Laser Micro/Nanoengineering. 2:64-68 |
| ISSN: | 1880-0688 |
| Popis: | We have developed a means to electronically tune laser pulse durations and achieve nearly constant, stable output power. This technique may be used to obtain variable pulse durations and peak powers at a constant pulse repetition rate, or constant pulse durations over a range of pulse repetition rates. These new capabilities allow great flexibility for material processing applications, making it possible to tailor and optimize the performance of a single laser for a wide variety of applications. We report development of next-generation Q-switched, intra-cavity frequency-converted, diodepumped, near diffraction-limited Nd:YAG lasers with output powers of 30 W at 355 nm and 40 W at 532 nm. Operating at 532 nm we have demonstrated a variable pulse width externally adjustable over the range of 40 ns to 300 ns at constant pulse repetition rates. |
| Databáze: | OpenAIRE |
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