Research on reflection characteristics for a rectangular laser pulse passing through a Fabry-Perot interferometer

Shichao Xu; Mingshi Luo; Lu Zhang

doi:10.1117/12.2504869

18 January 2019 Research on reflection characteristics for a rectangular laser pulse passing through a Fabry-Perot interferometer

Shichao Xu, Mingshi Luo, Lu Zhang

Author Affiliations +

Proceedings Volume 10839, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test, Measurement Technology, and Equipment; 108390B (2019) https://doi.org/10.1117/12.2504869
Event: Ninth International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT2018), 2018, Chengdu, China

Abstract

Rectangular laser pulse has a steep rising and falling edge, and the time scale of the rising or falling rate can reach nanosecond, which is close to the single round-trip time of light traveling in the Fabry-Perot interferometer. When the falling edge of the rectangular laser pulse is incident to the Fabry-Perot interferometer, the reflection intensity of the Fabry-Perot interferometer drops down to zero or near-zero at some point due to the rapid decline of amplitude. Moreover, the reflected light intensity shows the different decline rates under the different phase difference of the light propagating through the Fabry-Perot interferometer before the build-up of steady state for multiple-beam interferences, which provides a new way of thinking for the new measurement technology of Fabry-Perot interferometer. In this paper, the time response of the reflection intensity of the Fabry-Perot interferometer is studied. The dependence of the reflection intensity and energy on the phase difference in the Fabry-Perot interferometer is obtained. By optimizing the parameters of the rectangular laser pulse and the Fabry-Perot interferometer, the sensitivity of the reflected light intensity to the phase difference of the Fabry-Perot interferometer could be improved.

Citation Download Citation

Shichao Xu, Mingshi Luo, and Lu Zhang "Research on reflection characteristics for a rectangular laser pulse passing through a Fabry-Perot interferometer", Proc. SPIE 10839, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test, Measurement Technology, and Equipment, 108390B (18 January 2019); https://doi.org/10.1117/12.2504869

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