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 />
Optical <strong>phase</strong> conjugation using<br />
photorefractive materials<br />
BaTiO 3<br />
crystals<br />
Self-pumped <strong>phase</strong> conjugation<br />
using photorefractive materials<br />
•Self-organizing process leads to optical <strong>phase</strong> conjugation<br />
•No external pump beams are needed<br />
•High reflectivities (> 90 %) even at low optical power levels<br />
Paul Michael Petersen, <strong>Laser</strong> Diodes <strong>with</strong> External Feedback (tutorial)