EPJ Web Conf.
Volume 266, 2022EOS Annual Meeting (EOSAM 2022)
|Number of page(s)||2|
|Section||Topical Meeting (TOM) 13- Advances and Applications of Optics and Photonics|
|Published online||13 October 2022|
The effect of frequency modulation on the FSR of a Fabry-Perot cavity using an Optical Spectrum Analyser
1 INESC TEC, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
2 Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal
3 Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
4 Institut de Ciències de l’Espai (ICE, CSIC), Campus UAB, Carrer de Can Magrans s/n, 08193 Cerdanyola del Vallès, Spain
5 Institut d'Estudis Espacials de Catalunya (IEEC), Gran Capità, 2-4, Ed. Nexus, 08034 Barcelona, Spain
* Corresponding author: email@example.com
Published online: 13 October 2022
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.
© The Authors, published by EDP Sciences
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