Focused laser differential interferometer response to a controlled phase object

A. Hameed, N. J. Parziale

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

In this paper, we characterize the response of the focused laser differential interferometer (FLDI) instrument to a controlled phase object. A thin, uni-directional, controlled phase object is created by vibrating a cylindrical lens in the beam path. Attached to this lens is an accelerometer from which displacement may be measured and, with knowledge of the lens geometry, the phase response of a differential interferometer may be calculated. We compare the phase response derived from the accelerometer to that measured by the FLDI. This accelerometer-derived phase change was found to be in excellent agreement with the FLDI-derived phase change for both single and double FLDI setups with different phase-object strengths (focal lengths) in both amplitude and frequency.

Original languageEnglish
Title of host publicationAIAA Scitech 2021 Forum
Pages1-10
Number of pages10
StatePublished - 2021
EventAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021 - Virtual, Online
Duration: 11 Jan 202115 Jan 2021

Publication series

NameAIAA Scitech 2021 Forum

Conference

ConferenceAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021
CityVirtual, Online
Period11/01/2115/01/21

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