20 Sep 2007 New high-efficiency 808nm single-emitter diode lasers need no cooling or external components to maintain wavelength, reducing their energy consumption by up to three times compared to thermally-controlled pump lasers. New high-efficiency 808nm single-emitter diode lasers from Alfalight do not require any cooling or external components to maintain wavelength, reducing their energy consumption by up to three times compared to thermally-controlled pump lasers.
These laser diodes are ideal for military and commercial applications requiring uncooled wide-temperature-range operation, as well as unique, emerging applications demanding a narrow, stable pump wavelength such as diode-pumped alkali lasers and thulium-doped fibre lasers.
The AMx-808BW range is a drop-in performance upgrade for customers using traditional 808nm single-emitter pumps. Packaging and handling are identical, and the devices provide significantly higher pump absorption (87%) in Nd:YAG and Nd:YVO4 microlasers. These devices offer a wide uncooled operating range for most solid-state laser configurations.
The new diode lasers feature Wavelength Stabilisation Technology (WST) and have a monolithic grating integrated directly onto the semiconductor chip itself. The grating-defined wavelength is stable relative to changes in temperature and drive current, while maintaining a narrow spectral width. They offer peak power conversion efficiency (PCE) of 52%, a 30ºC wavelength locking range over their entire 0.2 to 2.5 watts output power, and a tight ±1.5 nm centre wavelength tolerance.
The AMx-808BW devices are available from Pacer International in a 2W fibre-coupled 6-pin package, and 2.5W chip-on-carrier C-mount and Q-mount options.
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