CW to QCW power scaling of high-power laser bars

Autor:	R. Brunner, Y. Manz-Gilbert, Bernd Valk, Jürgen Müller, Norbert Lichtenstein, M. Krejci, Rainer Bättig, R. Todt
Rok vydání:	2010
Předmět:	Materials science Laser diode business.industry Energy conversion efficiency Pulse duration Laser law.invention Semiconductor laser theory Optics law Optoelectronics Junction temperature Laser power scaling business Pulse-width modulation
Zdroj:	SPIE Proceedings.
ISSN:	0277-786X
DOI:	10.1117/12.842077
Popis:	We report on laser diode bars with wavelengths ranging from 793 to 1080 nm and optimized for high power and high temperature operation. For 808 nm bars output power values of 300 W at 300 A drive current and 200 μs pulse length have been recorded at a cooler temperature of 75°C. Extending our wavelength range to 1080nm we report on bars with >65% power conversion efficiency in CW operation and more than 500 W output power for a wide range of qCW modes. Finally, the properties of a 6-bar stack with 3 kW output power at 460 A drive current and 200 μs pulse width will be discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e3849edf4a563ae8557094378c5303d3 https://doi.org/10.1117/12.842077 Zobrazit plný text záznamu