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Digitale Medien

Self-stabilizing additive-pulse mode-locking due to thermo-optical non-linearity in an optical fiber (1998)

Jacob, D. ; Oberdorfer, A. ; Mitschke, F.

Springer

Applied physics 66 (1998), S. 271-276

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ISSN: 1432-0649

Schlagwort(e): PACS: 42.65.Re; 42.65.Vh; 42.81.Wg

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: 16 , 1671 (1991)] described a Nd:YLF APM laser which somehow automatically adjusted the relative resonator phase. We reproduce this behavior and analyse its origin. Thermal effects due to the light power guided in the fiber affect the effective fiber length, which in turn influences the phase and thus the power level; hence a closed servo loop results. We demonstrate this explanation to be correct in quantitative terms. Consequences arise for other systems involving fiber-optic loops or interferometers.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/s003400050388

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Digitale Medien

The occurrence of bisulfite-aldehyde addition products in fog- and cloudwater (1984)

Munger, J. W. ; Jacob, D. J. ; Hoffmann, M. R.

Springer

Journal of atmospheric chemistry 1 (1984), S. 335-350

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ISSN: 1573-0662

Schlagwort(e): Formaldehyde ; sulfur (IV) ; sulfonic acids ; sulfur oxidation ; air pollution ; fogwater chemistry

Quelle: Springer Online Journal Archives 1860-2000

Thema: Chemie und Pharmazie , Geologie und Paläontologie

Notizen: Abstract Elevated concentrations of S(IV) and formaldehyde were observed in fog- and cloudwater at sites in California. The highest concentrations (up to 3 mM S(IV) and 0.7 mM CH2O) were measured at Bakersfield, during a prolonged period of repeated fog. In Bakersfield [S(IV)] generally exceeded [CH2O], while in the Los Angeles area the reverse was observed. The lowest concentrations of both species were observed at marine and high altitude sites away from local emissions. Equilibrium computations indicate that high concentrations of S(IV) cannot be achieved without the formation of S(IV)-RCHO adducts.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00053799

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