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1. The effect of frequency modulation on the FSR of a Fabry-Perot cavity using an Optical Spectrum Analyser.

Author

Reis, João, V.Rodrigues, António, Robalinho, Paulo, Novais, Susana, Maia, João, Marques, Paulo, Roma, D., Salvans, J., Canal, M., Ramos, J., Gualani, V., Sisteré, S., Martín, V., Nofrarias, M., Silva, Susana, and Frazão, Orlando

Subjects
*OPTICAL spectra, *FREQUENCY modulation detectors, *INTERFEROMETERS, *OPTICAL elements, *OPTICAL properties
Abstract

It is presented a study of the dependence between the free spectral range (FSR) and the cavity length in Fabry-Perot interferometers. Furthermore, the effect of frequency modulation on the FSR is studied when an optical spectrum analyser (OSA) is used as an interrogator. For low frequency range it is possible to observe this behaviour in the OSA and using an appropriate processing signal it is possible to use the white light interferometry technique. [ABSTRACT FROM AUTHOR]

Published
2022
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