Laser diodes with phase conjugate feedback
Laser diodes with phase conjugate feedback
Laser diodes with phase conjugate feedback
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Risø National Laboratory<br />
Etalon setup<br />
Coherence degree γ<br />
1,0<br />
0,9<br />
0,8<br />
0,7<br />
0,6<br />
0,5<br />
0,4<br />
0,3<br />
0,2<br />
0,1<br />
Array runs freely (2I th )<br />
Feedback applied (2I th )<br />
Feedback applied (3I th )<br />
Output sent<br />
to Michelson<br />
interferometer<br />
Coherence<br />
length is<br />
increased<br />
several orders<br />
of magnitude<br />
0,1 1 10 100<br />
Path difference [mm]<br />
Paul Michael Petersen, <strong>Laser</strong> Diodes <strong>with</strong> External Feedback (tutorial)<br />
.
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