Mirrorless oscillation in photorefractive crystals

Autor(en): Jakel, G
Kratzig, E
Neumann, J
Dankers, S
Odoulov, S
Stichwörter: BATIO3; LIGHT-INDUCED SCATTERING; Materials Science; Materials Science, Multidisciplinary; PARAMETRIC OSCILLATION; Physics; Physics, Condensed Matter
Erscheinungsdatum: 1997
Herausgeber: GORDON BREACH SCI PUBL LTD
Journal: FERROELECTRICS
Volumen: 202
Ausgabe: 1-4
Startseite: 87
Seitenende: 95
Zusammenfassung: 
In some special wave mixing configurations using photorefractive crystals and forward-and backward-propagating pump waves, one may observe a certain type of self-oscillation without any external feedback, the so-called mirrorless oscillation. Here forward-propagating waves passing through the crystal are enhanced via a parametric amplification process, which in turn causes an enhancement of the backward-propagating waves meeting the same phase-matching conditions. As a result coherent output beams self-develop without any additional input beams apart from the pump beams. Ultimate amplification is only limited by the intensity of the pump beams. In this contribution we describe four configurations which yield mirrorless oscillation for photorefractive BaTiO3 crystals.
Beschreibung: 
3rd European Meeting on the Applications of Polar Dielectrics, BLED, SLOVENIA, AUG 26-29, 1996
ISSN: 00150193
DOI: 10.1080/00150199708213464

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