Generalized expression for the growth of long period gratings

MacDougall, Trevor W.; Pilevar, Saeed; Haggans, Charles W.; Jackson, Michael

doi:10.1109/68.720290

Cited by 119 publications

(66 citation statements)

References 9 publications

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“…The effective index of core and clad modes will decreases due to photo elastic effect of the fibre material [16],…”

Section: Strain Sensitivitymentioning

confidence: 99%

Role of Flexible Macro Fibre Composite (MFC) Actuator on Bragg Wavelength Tuning in Microstructure Polymer Optical Fibre Long Period Grating for Strain Sensing Applications*

Dikshit¹,

Raj²

2013

JST

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The microstructure polymer optical fibre (mPOF) inscribed long period grating (LPG) offers a wide field of application in strain sensors arena within the materials elastic limit. Flexible innovative macro fibre composite (MFC) actuator generates electromechanical force under DC driving voltage. We propose a novel method for Bragg wavelength blue shifting through stretch tuning of mPOF LPG in axial direction under applied DC voltage on attached MFC with LPG. The grating period of mPOF LPG changes refractive index and causes blue shift of Bragg grating fibre wavelength. The shifting governs on the values of generated electromechanically strain transfer from flexible MFC to mPOF LPG and they have potential applications in strain sensor.

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“…The effective index of core and clad modes will decreases due to photo elastic effect of the fibre material [16],…”

Section: Strain Sensitivitymentioning

confidence: 99%

Role of Flexible Macro Fibre Composite (MFC) Actuator on Bragg Wavelength Tuning in Microstructure Polymer Optical Fibre Long Period Grating for Strain Sensing Applications*

Dikshit¹,

Raj²

2013

JST

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“…Therefore, the slope of the phase-matching curve, dλ 0 /dΛ, is a direct measure of the modal dispersion factor γ [16,40,41]. The value of γ can be positive or negative, or even equal to infinity at the turning points of the phase-matching curve.…”

Section: Basic Theorymentioning

confidence: 99%

“…The value of γ can be positive or negative, or even equal to infinity at the turning points of the phase-matching curve. For a fiber grating, because the fiber cladding is thick, γ = ±∞ is possible only with high-order cladding modes [40,41].…”

Section: Basic Theorymentioning

confidence: 99%

Widely tunable long-period waveguide grating filters

Chiang

2006

Proceedings of SPIE

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This paper presents a review of the development of long-period waveguide gratings (LPWGs) with focus on the realization of various kinds of tunable devices, such as band-rejection filters, variable attenuators, band-pass filters, and add/drop multiplexers. A number of specific examples are given to demonstrate how the geometry and material flexibility of the optical waveguide technology facilitates the design of widely tunable LPWG-based devices. LPWG is evolving into a versatile waveguide structure for the implementation of a wide range of optical functions.

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“…The generalised sensing parameter γ is defined in (MacDougall et al, 1998;Shu et al, 2002) and accounts for the effects of the material and waveguide dispersion of the fibre,…”

Section: Models Of Grating Sensitivitymentioning

confidence: 99%

Modelling of Long Period Gratings in Photonic Crystal Fibres and Sensors Based on Them

Petrović¹

2008

Modelling and Simulation

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Generalized expression for the growth of long period gratings

Cited by 119 publications

References 9 publications

Role of Flexible Macro Fibre Composite (MFC) Actuator on Bragg Wavelength Tuning in Microstructure Polymer Optical Fibre Long Period Grating for Strain Sensing Applications*

Role of Flexible Macro Fibre Composite (MFC) Actuator on Bragg Wavelength Tuning in Microstructure Polymer Optical Fibre Long Period Grating for Strain Sensing Applications*

Widely tunable long-period waveguide grating filters

Modelling of Long Period Gratings in Photonic Crystal Fibres and Sensors Based on Them

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