Quantitative measurement for the modulation of photorefractive index gratings

Shoang C. Donn; Chung Chen Tu; Ching Cherng Sun; Ming Tsung Chen

doi:10.1117/1.1476941

Quantitative measurement for the modulation of photorefractive index gratings

Shoang C. Donn, Chung Chen Tu, Ching Cherng Sun, Ming Tsung Chen

Department of Optics and Photonics

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

The modulation of a photorefractive index grating, Δn, can be estimated by counting the number of peaks in the curve for the diffraction efficiency as a function of time under the phase matching condition. The accuracy for this method is about 13%. Here a new method is proposed, in which we improve the measurement accuracy to about 1%, by adding the measurement for the diffraction efficiency as a function of the angle mismatch. This precise Δn measurement allows us to quantify photorefractive effects with greater accuracy.

Original language	English
Pages (from-to)	1346-1349
Number of pages	4
Journal	Optical Engineering
Volume	41
Issue number	6
DOIs	https://doi.org/10.1117/1.1476941
State	Published - Jun 2002

Keywords

Grating index modulation
Lithium niobate
Optical storage recording materials
Photorefractive index
Volume holographic materials

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10.1117/1.1476941

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title = "Quantitative measurement for the modulation of photorefractive index gratings",

abstract = "The modulation of a photorefractive index grating, Δn, can be estimated by counting the number of peaks in the curve for the diffraction efficiency as a function of time under the phase matching condition. The accuracy for this method is about 13%. Here a new method is proposed, in which we improve the measurement accuracy to about 1%, by adding the measurement for the diffraction efficiency as a function of the angle mismatch. This precise Δn measurement allows us to quantify photorefractive effects with greater accuracy.",

keywords = "Grating index modulation, Lithium niobate, Optical storage recording materials, Photorefractive index, Volume holographic materials",

author = "Donn, {Shoang C.} and Tu, {Chung Chen} and Sun, {Ching Cherng} and Chen, {Ming Tsung}",

note = "Funding Information: The research is supported by the National Science Council of the Republic of China through contract NSE 89-2215-E-033-002. The authors are indebted to Dr. Wei B. Lee for his helpful discussions.",

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T1 - Quantitative measurement for the modulation of photorefractive index gratings

AU - Donn, Shoang C.

AU - Tu, Chung Chen

AU - Sun, Ching Cherng

AU - Chen, Ming Tsung

N1 - Funding Information: The research is supported by the National Science Council of the Republic of China through contract NSE 89-2215-E-033-002. The authors are indebted to Dr. Wei B. Lee for his helpful discussions.

PY - 2002/6

Y1 - 2002/6

N2 - The modulation of a photorefractive index grating, Δn, can be estimated by counting the number of peaks in the curve for the diffraction efficiency as a function of time under the phase matching condition. The accuracy for this method is about 13%. Here a new method is proposed, in which we improve the measurement accuracy to about 1%, by adding the measurement for the diffraction efficiency as a function of the angle mismatch. This precise Δn measurement allows us to quantify photorefractive effects with greater accuracy.

AB - The modulation of a photorefractive index grating, Δn, can be estimated by counting the number of peaks in the curve for the diffraction efficiency as a function of time under the phase matching condition. The accuracy for this method is about 13%. Here a new method is proposed, in which we improve the measurement accuracy to about 1%, by adding the measurement for the diffraction efficiency as a function of the angle mismatch. This precise Δn measurement allows us to quantify photorefractive effects with greater accuracy.

KW - Grating index modulation

KW - Lithium niobate

KW - Optical storage recording materials

KW - Photorefractive index

KW - Volume holographic materials

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M3 - 期刊論文

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SN - 0091-3286

VL - 41

SP - 1346

EP - 1349

JO - Optical Engineering

JF - Optical Engineering

IS - 6

ER -

Quantitative measurement for the modulation of photorefractive index gratings

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