Nanodeposition of materials with complex refractive index in long-period fiber gratings

Ignacio Del Villar; Ignacio R. Matias; Francisco J. Arregui; Miguel Achaerandio

doi:10.1109/JLT.2005.858246

Nanodeposition of materials with complex refractive index in long-period fiber gratings

Ignacio Del Villar^*
, Ignacio R. Matias
, Francisco J. Arregui
, Miguel Achaerandio

^*Corresponding author for this work

Public University of Navarre

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

95 Citations (Scopus)

Abstract

An overlay of higher refractive index than the cladding is deposited on a long-period fiber grating (LPFG). This causes large attenuation-band shifts in the transmission spectrum, which permits the improvement of the sensitivity of the device to ambient and overlay refractive-index changes. To obtain maximum sensitivity for specific overlay and ambient refractive indexes, an optimum overlay thickness (OOT) must be selected. For complex overlay refractive indexes, there is an additional phenomenon of vanishing of the attenuation bands. This occurs for specific overlay-thickness values. The problem is analyzed with a numerical method based on linearly polarized (LP)-mode approximation and coupled-mode theory. Experimental results are contrasted with theoretical ones.

Original language	English
Pages (from-to)	4192-4199
Number of pages	8
Journal	Journal of Lightwave Technology
Volume	23
Issue number	12
DOIs	https://doi.org/10.1109/JLT.2005.858246
Publication status	Published - Dec 2005
Externally published	Yes

Keywords

Coupled-mode analysis
Long-period gratings
Nanodeposition
Optical fiber sensors
Refractive index

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10.1109/JLT.2005.858246

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title = "Nanodeposition of materials with complex refractive index in long-period fiber gratings",

abstract = "An overlay of higher refractive index than the cladding is deposited on a long-period fiber grating (LPFG). This causes large attenuation-band shifts in the transmission spectrum, which permits the improvement of the sensitivity of the device to ambient and overlay refractive-index changes. To obtain maximum sensitivity for specific overlay and ambient refractive indexes, an optimum overlay thickness (OOT) must be selected. For complex overlay refractive indexes, there is an additional phenomenon of vanishing of the attenuation bands. This occurs for specific overlay-thickness values. The problem is analyzed with a numerical method based on linearly polarized (LP)-mode approximation and coupled-mode theory. Experimental results are contrasted with theoretical ones.",

keywords = "Coupled-mode analysis, Long-period gratings, Nanodeposition, Optical fiber sensors, Refractive index",

author = "\{Del Villar\}, Ignacio and Matias, \{Ignacio R.\} and Arregui, \{Francisco J.\} and Miguel Achaerandio",

year = "2005",

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doi = "10.1109/JLT.2005.858246",

language = "English",

volume = "23",

pages = "4192--4199",

journal = "Journal of Lightwave Technology",

issn = "0733-8724",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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T1 - Nanodeposition of materials with complex refractive index in long-period fiber gratings

AU - Del Villar, Ignacio

AU - Matias, Ignacio R.

AU - Arregui, Francisco J.

AU - Achaerandio, Miguel

PY - 2005/12

Y1 - 2005/12

N2 - An overlay of higher refractive index than the cladding is deposited on a long-period fiber grating (LPFG). This causes large attenuation-band shifts in the transmission spectrum, which permits the improvement of the sensitivity of the device to ambient and overlay refractive-index changes. To obtain maximum sensitivity for specific overlay and ambient refractive indexes, an optimum overlay thickness (OOT) must be selected. For complex overlay refractive indexes, there is an additional phenomenon of vanishing of the attenuation bands. This occurs for specific overlay-thickness values. The problem is analyzed with a numerical method based on linearly polarized (LP)-mode approximation and coupled-mode theory. Experimental results are contrasted with theoretical ones.

AB - An overlay of higher refractive index than the cladding is deposited on a long-period fiber grating (LPFG). This causes large attenuation-band shifts in the transmission spectrum, which permits the improvement of the sensitivity of the device to ambient and overlay refractive-index changes. To obtain maximum sensitivity for specific overlay and ambient refractive indexes, an optimum overlay thickness (OOT) must be selected. For complex overlay refractive indexes, there is an additional phenomenon of vanishing of the attenuation bands. This occurs for specific overlay-thickness values. The problem is analyzed with a numerical method based on linearly polarized (LP)-mode approximation and coupled-mode theory. Experimental results are contrasted with theoretical ones.

KW - Coupled-mode analysis

KW - Long-period gratings

KW - Nanodeposition

KW - Optical fiber sensors

KW - Refractive index

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DO - 10.1109/JLT.2005.858246

M3 - Article

AN - SCOPUS:31344451377

SN - 0733-8724

VL - 23

SP - 4192

EP - 4199

JO - Journal of Lightwave Technology

JF - Journal of Lightwave Technology

IS - 12

ER -

Nanodeposition of materials with complex refractive index in long-period fiber gratings

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Keywords

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