Phase stepping and heterodyning in a fiber-based speckle shearing interferometer

Jesus D. Valera; Julian D. Jones; David P. Towers; Clive H. Buckberry

Phase stepping and heterodyning in a fiber-based speckle shearing interferometer

Jesus D. Valera, Julian D. Jones, David P. Towers, Clive H. Buckberry

School of Engineering & Physical Sciences

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

An optical, fiber-based, speckle shearing interferometer is described. The instrument uses a highly birefringent optical fiber to illuminate a test object with equal intensities of light guided by the orthogonal polarization eigenstates of the fiber. A Wollaston prism is used to obtain two sheared images with adjustable shear. Optical phase changes between the sheared images are readily achieved, without mechanical movement of components, by straining the optical fiber. Object strain determination, by fringe analysis with phase stepping techniques, is readily achieved. Vibration analysis by heterodyning is also reported.

Original language	English
Title of host publication	Proceedings of SPIE - The International Society for Optical Engineering
Pages	164-172
Number of pages	9
Volume	2544
Publication status	Published - 1995
Event	Interferometry VII: Techniques and Analysis - San Diego, CA, USA Duration: 11 Jul 1995 → 12 Jul 1995

Conference

Conference	Interferometry VII: Techniques and Analysis
City	San Diego, CA, USA
Period	11/07/95 → 12/07/95

Cite this

@inproceedings{8f80f21a9216439d9921fae94d0fce54,

title = "Phase stepping and heterodyning in a fiber-based speckle shearing interferometer",

abstract = "An optical, fiber-based, speckle shearing interferometer is described. The instrument uses a highly birefringent optical fiber to illuminate a test object with equal intensities of light guided by the orthogonal polarization eigenstates of the fiber. A Wollaston prism is used to obtain two sheared images with adjustable shear. Optical phase changes between the sheared images are readily achieved, without mechanical movement of components, by straining the optical fiber. Object strain determination, by fringe analysis with phase stepping techniques, is readily achieved. Vibration analysis by heterodyning is also reported.",

author = "Valera, {Jesus D.} and Jones, {Julian D.} and Towers, {David P.} and Buckberry, {Clive H.}",

year = "1995",

language = "English",

isbn = "0819419036",

volume = "2544",

pages = "164--172",

booktitle = "Proceedings of SPIE - The International Society for Optical Engineering",

note = "Interferometry VII: Techniques and Analysis ; Conference date: 11-07-1995 Through 12-07-1995",

}

TY - GEN

T1 - Phase stepping and heterodyning in a fiber-based speckle shearing interferometer

AU - Valera, Jesus D.

AU - Jones, Julian D.

AU - Towers, David P.

AU - Buckberry, Clive H.

PY - 1995

Y1 - 1995

N2 - An optical, fiber-based, speckle shearing interferometer is described. The instrument uses a highly birefringent optical fiber to illuminate a test object with equal intensities of light guided by the orthogonal polarization eigenstates of the fiber. A Wollaston prism is used to obtain two sheared images with adjustable shear. Optical phase changes between the sheared images are readily achieved, without mechanical movement of components, by straining the optical fiber. Object strain determination, by fringe analysis with phase stepping techniques, is readily achieved. Vibration analysis by heterodyning is also reported.

AB - An optical, fiber-based, speckle shearing interferometer is described. The instrument uses a highly birefringent optical fiber to illuminate a test object with equal intensities of light guided by the orthogonal polarization eigenstates of the fiber. A Wollaston prism is used to obtain two sheared images with adjustable shear. Optical phase changes between the sheared images are readily achieved, without mechanical movement of components, by straining the optical fiber. Object strain determination, by fringe analysis with phase stepping techniques, is readily achieved. Vibration analysis by heterodyning is also reported.

M3 - Conference contribution

SN - 0819419036

VL - 2544

SP - 164

EP - 172

BT - Proceedings of SPIE - The International Society for Optical Engineering

T2 - Interferometry VII: Techniques and Analysis

Y2 - 11 July 1995 through 12 July 1995

ER -

Phase stepping and heterodyning in a fiber-based speckle shearing interferometer

Abstract

Conference

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