Near-infrared four-wave mixing with gain and self-starting oscillators with photorefractive GaAs
We report high-reflectivity four-wave mixing in photorefractive GaAs:Cr crystals at 1.06 microm using a nearly degenerate interaction with an externally applied dc electric field (moving-grating recording mode). The highest reflectivities (R approximately 5) are observed for the positive-readout con...
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Veröffentlicht in: | Optics letters 1989, Vol.14 (1), p.78-80 |
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Hauptverfasser: | , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | We report high-reflectivity four-wave mixing in photorefractive GaAs:Cr crystals at 1.06 microm using a nearly degenerate interaction with an externally applied dc electric field (moving-grating recording mode). The highest reflectivities (R approximately 5) are observed for the positive-readout configuration with cross-polarized pump beams. The variation in reflectivity with the pump-beam ratio is presented for two pump-beam polarization states and compared with theory. Self-starting optical resonators are also described. |
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ISSN: | 0146-9592 1539-4794 |
DOI: | 10.1364/OL.14.000078 |