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Edinburgh EH28 8PP
Phone: +44 131 333 2200

Visible CW DPSS SLM Lasers

Photonics Buyers' GuideVisible CW DPSS SLM LasersThe UniKLasers range of visible continuous wave DPSS lasers covers 7 wavelengths at 442, 515, 523, 532, 607, 640 and 698 nm, with powers ranging up to 2W. Using proprietary patent protected BRaMMS technology all 7 wavelengths have similar characteristics and specifications.

The are all naturally single frequency with line widths measured below 500 kHz and coherence lengths well in excess of 100m, they all have high spectral purity and wavelength stability in the order of a few picometers measured over many hours. This is due to a feedback loop that controls the cavity performance maintaining its low drift and eliminating mode-hop. This feedback system can be augmented by a tuning option that allows a voltage to be entered that shifts the wavelength by 20-50 GHz, but can also be used to stabilize the output even further, by using an external reference such as an interferometry or gas absorption cell. This reduces the wavelength drift to the instability level of the reference.

Due to the high conversion efficiency, available powers are typically higher than competitive technologies and the heat management demand is consequently low.

Targeted at such applications as holography, interferometry, Brillouin scattering and hi-resolution Raman applications, the lasers are small, reliable with long lifetimes.

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