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Proceedings Paper

Measuring time-domain and spectral-domain two-beam interference using a detecting system of a variable spectral bandpass
Author(s): Petr Hlubina
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Paper Abstract

The effect of a detecting system consisting of a monochromator of a variable spectral bandpass and a broadband detector on time-domain and spectral-domain two- beam interference in a Michelson interferometer is analyzed theoretically and experimentally. The time-domain theoretical analysis of the two-beam interference shows that the visibility function for the spatial interference fringes, that is, the visibility of the spatial interference fringes as a function of the delay in the interferometer, is affected by the bandpass of the monochromator. Similarly, the spectral-domain theoretical analysis of the two-beam interference gives the visibility function for the spectral interference fringes that varies with the bandpass of the spectrometer. The time-domain theoretical conclusions are confirmed experimentally in the Michelson interferometer configuration using a TOLD 9140 laser diode operated below the threshold and the detecting system of the variable spectral bandpass consisting of a prism or grating monochromator and a PIN photodetector. The spectral-domain theoretical conclusions are confirmed experimentally using the TOLD 9140 laser diode and the prism or grating spectrometer, and using the TOLD 9211 laser diode and the grating spectrometer. The measured time-domain and the spectral-domain visibility functions are also used to obtain the reciprocal linear dispersion of the monochromator or spectrometer.

Paper Details

Date Published: 7 March 2001
PDF: 8 pages
Proc. SPIE 4356, 12th Czech-Slovak-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics, (7 March 2001); doi: 10.1117/12.417820
Show Author Affiliations
Petr Hlubina, Silesian Univ. at Opava (Czech Republic)


Published in SPIE Proceedings Vol. 4356:
12th Czech-Slovak-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics
Jan Perina Sr.; Miroslav Hrabovsky; Jaromir Krepelka, Editor(s)

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