Improved photorefractive time response using a cylindrical lens

Experimental observations are reported which demonstrate that the response time for beam fanning, self-pumped phase conjugation, and double phase conjugation can be shortened by more than an order of magnitude without a significant reduction in coupling strength by using a cyclindrical lens to focus...

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Veröffentlicht in:Applied Optics 1991-05, Vol.30 (14), p.1847-1854
Hauptverfasser: SALAMO, G. J, MONSON, B. D, CLARK, W. W, WOOD, G. L, SHARP, E. J, NEURGAONKAR, R. R
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Sprache:eng
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Zusammenfassung:Experimental observations are reported which demonstrate that the response time for beam fanning, self-pumped phase conjugation, and double phase conjugation can be shortened by more than an order of magnitude without a significant reduction in coupling strength by using a cyclindrical lens to focus incident laser light into a photorefractive crystal. These results are compared with those obtained using a spherical lens where a reduction in the photorefractive response time is accompanied by a corresponding reduction in coupling strength. It is shown that the fidelity of a phase conjugate beam is not degraded when cylindrical optics are used.
ISSN:0003-6935
1559-128X
1539-4522
DOI:10.1364/ao.30.001847