Table 1 Main parameters of the 41 W sum-frequency laser prototype.

From: Investigation of return photons from sodium laser beacon excited by a 40-watt facility-class pulsed laser for adaptive optical telescope applications

Attribute

Value or Range

Average Power at 589 nm

41 W@600 Hz

Average Power at 1064 nm

90.2 W@600 Hz

Average Power at 1319 nm

67.5 W@600 Hz

Sum-frequency efficiency

26%

Line Width

~0.34 GHz

Beam Quality

M2 ~ 1.45

Pulsed Length

100–180 μs

Repetition Rate

400–1000 Hz

Beam line polarization ratio

>99%

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