Microinterferometric tomography of photonics phase elements

Kniazewski, Pawel; Gorski, Witold; Kujawińska, Małgorzata

doi:10.1117/12.500029

Cited by 11 publications

(10 citation statements)

References 4 publications

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“…Coupler S divides the light into object and reference beams, the linear polarization of light is maintained by the coupler and the fiber. To avoid undesired refraction of the object beam the measured sample is placed in the specific cuvette filled by a refractive index matching liquid [6]. PC controlled rotation stage rotates object with accuracy 1/200°.…”

Section: Methodsmentioning

confidence: 99%

“…Microinterferometric tomography is full-field method for determination of three-dimensional refractive index distribution n(x,y,z) [5] It has been proved to be an excellent tool for analyzing n(x,y,z) in a large variety of phase microelements including optical fibers and OF based elements [6] gradient lenses and waveguides with specially modified refractive index distribution. In this work we apply tomographic microinterferometry for the reliability studies of optical fibers subjected to gamma radiation.…”

Section: Introductionmentioning

confidence: 99%

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Application of the microinterferometric tomography setup to the reliability tests of the fiber sensors exposed to cumulated gamma radiation

Kniazewski

Kujawińska

Berghmans

et al. 2005

Nano- And Micro-Metrology

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In this paper we report on the measurement of the refractive index profile of optical fibers exposed to the gamma radiation. The tool we used for determining the refractive index distribution is microinterferometric tomography. Nuclear radiation is known to affect the guiding properties of optical fibers and it is therefore essential to characterize these effects to assess the applicability of fiber-optic technology for communication and sensing in space applications and in nuclear industry. We show that the fibres exhibit a slight refractive index increase which confirms results reported earlier.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Application of the microinterferometric tomography setup to the reliability tests of the fiber sensors exposed to cumulated gamma radiation

Kniazewski

Kujawińska

Berghmans

et al. 2005

Nano- And Micro-Metrology

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“…Photoelastic tomography is the measurement method, which combines automated polariscopy [3] with tomographic 3D reconstruction methods [4,5].…”

Section: Photoelastic Tomographymentioning

confidence: 99%

Application of the photoelastic tomography to three-dimensional measurement of birefringence in anisotropic microobjects

2005

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In the paper we present method for three-dimensional measurement of birefringence distribution in photonics components. The tool we used in this work is automated digital photoelasticity combined with tomography, namely photoelastic tomography. Till now the photoelasticity procedures have been applied for objects with significant dimensions and therefore the diffraction phenomena could be neglected. In this paper we verify the correctness of this method for measurement of small objects. In order to identify this error we simulate the measurement process starting from integrated retardation determination and ending on 3D distribution evaluation. Computations are performed using full vectorial propagation method based on Maxwell-curl equations (finite difference time domain method FDTD). The results of simulations are compared with actual measurement results derived from physical setup. The result of experimental and numerical analysis allow optimizing the measurement setup and minimizing the errors. The correctness of the photoelastic tomography for analysis of microobjects has been proven on an example of birefringent optical fibers.

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“…It has been proved to be an excellent tool for analyzing n(x,y,z) in of large variety of phase microelements including optical fibers and OF based elements (splices, couplers) [4,5], gradient lenses and waveguides with specially modified refractive index distribution. In this work we apply for the first time interferometric tomography for the reliability studies of optical fibers subjected to gamma radiation.…”

Section: Introductionmentioning

confidence: 99%

Application of microinterferometric tomography as an evaluation tool for phase micro-objects

Kniazewski

Krajewski

Kujawińska

et al. 2005

Eighth International Symposium on Laser Metrology

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Microinterferometric tomography allows for determination of three-dimensional refractive index distributions in phase isotropic microelements. In this paper we present the measurement of the refractive index profile of the optical fibers exposed to the gamma radiation. Nuclear radiation is known to affect the guiding properties of optical fibers and it is therefore essential to characterize these effects to assess the applicability of fiber-optic technology for communication and sensing in nuclear industry. It is already well known that radiation affects the absorption of the fiber. Here, we investigated whether we could quantify the effect of radiation on the refractive index of core and cladding of an optical fiber.

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Microinterferometric tomography of photonics phase elements

Cited by 11 publications

References 4 publications

Application of the microinterferometric tomography setup to the reliability tests of the fiber sensors exposed to cumulated gamma radiation

Application of the microinterferometric tomography setup to the reliability tests of the fiber sensors exposed to cumulated gamma radiation

Application of the photoelastic tomography to three-dimensional measurement of birefringence in anisotropic microobjects

Application of microinterferometric tomography as an evaluation tool for phase micro-objects

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