The Role Of Focusing For A Bistable Fabry-Perot Etalon With A Local Saturable Nonlinearity

Ulf Andersson; Olof Sahlen

doi:10.1117/12.936943

8 January 1987 The Role Of Focusing For A Bistable Fabry-Perot Etalon With A Local Saturable Nonlinearity

Ulf Andersson, Olof Sahlen

Author Affiliations +

Proceedings Volume 0700, 1986 Intl Optical Computing Conf; (1987) https://doi.org/10.1117/12.936943
Event: 1986 International Computing Conference, 1986, Jerusalem, Israel

Abstract

The non-linear wave-equation has been solved numerically for a Fabry-Perot etalon, assuming a cylindrical symmetric gaussian input beam, a local mixed dispersive and absorptive saturable nonlinearity and an additional nonsaturable background absorption term. The role of focusing has been systematically investigated for both absorptive and dispersive bistability. Whole-beam switching occurs under tight focusing conditions. But, in the case of defocusing and absorptive bistability, a further reduction of spotsize results in loss of the hysteresis characteristics. Thus, thisposes a restriction on the minimum spotsize and, hence on the minimum input power, for bistable operation.

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Ulf Andersson and Olof Sahlen "The Role Of Focusing For A Bistable Fabry-Perot Etalon With A Local Saturable Nonlinearity", Proc. SPIE 0700, 1986 Intl Optical Computing Conf, (8 January 1987); https://doi.org/10.1117/12.936943

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