Powerful, diffraction-limited semiconductor laser using photorefractive beam coupling.
We use semiconductor laser amplifiers and a photorefractive crystal to generate a high-power, diffraction-limited laser beam at 860 nm. Using a single flared amplifier, we obtain 1.09 W in a diffraction-limited beam from 2.2 W of pump power. Using an array of flared amplifiers, we also demonstrate efficient beam coupling, showing that this technique is easily extended to semiconductor amplifier arrays.
Maccormack
S
S
Bacher
G D
GD
Feinberg
J
J
O'Brien
S
S
Lang
R J
RJ
Klein
M B
MB
Wechsler
B A
BA