High Power Diode Lasers - Center for Biomedical Optics and New ...
High Power Diode Lasers - Center for Biomedical Optics and New ...
High Power Diode Lasers - Center for Biomedical Optics and New ...
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In the parallel direction : 2 main kinds of lasers<br />
The broad-area laser : high power (∼10W at 0.98µm) but low beam spatial quality<br />
100<br />
µm<br />
1.0<br />
2 mm Far field<br />
P = 1 W<br />
M² = 15-20<br />
I (u.a.)<br />
0.8<br />
0.6<br />
0.4<br />
0.2<br />
0.0<br />
-15 -10 -5 0 5 10 15<br />
Angle (°)<br />
8,7°<br />
9,8°<br />
in the //<br />
direction<br />
The ridge laser: high spatial beam quality but a few hundreds of mW<br />
5<br />
µm<br />
2 mm<br />
P =300 mW<br />
M² = 1.2<br />
I (u.a.)<br />
1.0<br />
0.8<br />
0.6<br />
0.4<br />
0.2<br />
0.0<br />
-15 -10 -5 0 5 10 15<br />
Angle (°)<br />
8°<br />
14°<br />
Far field<br />
in the //<br />
direction
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