A high sensitivity long period grating Mach-Zehnder refractometer

Thomas D.P. Allsop; D.J. Webb; I. Bennion

doi:10.1109/OFS.2002.1000517

A high sensitivity long period grating Mach-Zehnder refractometer

Thomas D.P. Allsop, D.J. Webb, I. Bennion

Aston Institute of Photonic Technologies (AiPT)

Research output: Chapter in Book/Published conference output › Conference publication

Abstract

A refractive index sensing system has been demonstrated, which is based upon an in-line fibre long period grating Mach-Zehnder interferometer with a heterodyne interrogation technique. This sensing system has comparable accuracy to laboratory-based techniques used in industry such as high performance liquid chromatography and UV spectroscopy. The advantage of this system is that measurements can be made in-situ for applications in continuous process control. Compared to other refractive index sensing schemes using LPGs, this approach has two main advantages. Firstly, the system relies on a simple optical interrogation system and therefore has the real potential for being low cost, and secondly, so far as we are aware it provides the highest refractive index resolution reported for any fibre LPG device.

Original language	English
Title of host publication	15th Optical Fiber Sensors conference technical digest, 2002
Publisher	IEEE
Pages	123-126
Number of pages	4
Volume	1
ISBN (Print)	0-7803-7289-1
DOIs	https://doi.org/10.1109/OFS.2002.1000517
Publication status	Published - 2002
Event	15th conference on Optical Fibre Sensors - Portland, Oregon, United States Duration: 10 May 2002 → …

Conference

Conference	15th conference on Optical Fibre Sensors
Abbreviated title	OFS 2002
Country/Territory	United States
City	Portland, Oregon
Period	10/05/02 → …

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10.1109/OFS.2002.1000517

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title = "A high sensitivity long period grating Mach-Zehnder refractometer",

abstract = "A refractive index sensing system has been demonstrated, which is based upon an in-line fibre long period grating Mach-Zehnder interferometer with a heterodyne interrogation technique. This sensing system has comparable accuracy to laboratory-based techniques used in industry such as high performance liquid chromatography and UV spectroscopy. The advantage of this system is that measurements can be made in-situ for applications in continuous process control. Compared to other refractive index sensing schemes using LPGs, this approach has two main advantages. Firstly, the system relies on a simple optical interrogation system and therefore has the real potential for being low cost, and secondly, so far as we are aware it provides the highest refractive index resolution reported for any fibre LPG device.",

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doi = "10.1109/OFS.2002.1000517",

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AU - Allsop, Thomas D.P.

AU - Webb, D.J.

AU - Bennion, I.

PY - 2002

Y1 - 2002

N2 - A refractive index sensing system has been demonstrated, which is based upon an in-line fibre long period grating Mach-Zehnder interferometer with a heterodyne interrogation technique. This sensing system has comparable accuracy to laboratory-based techniques used in industry such as high performance liquid chromatography and UV spectroscopy. The advantage of this system is that measurements can be made in-situ for applications in continuous process control. Compared to other refractive index sensing schemes using LPGs, this approach has two main advantages. Firstly, the system relies on a simple optical interrogation system and therefore has the real potential for being low cost, and secondly, so far as we are aware it provides the highest refractive index resolution reported for any fibre LPG device.

AB - A refractive index sensing system has been demonstrated, which is based upon an in-line fibre long period grating Mach-Zehnder interferometer with a heterodyne interrogation technique. This sensing system has comparable accuracy to laboratory-based techniques used in industry such as high performance liquid chromatography and UV spectroscopy. The advantage of this system is that measurements can be made in-situ for applications in continuous process control. Compared to other refractive index sensing schemes using LPGs, this approach has two main advantages. Firstly, the system relies on a simple optical interrogation system and therefore has the real potential for being low cost, and secondly, so far as we are aware it provides the highest refractive index resolution reported for any fibre LPG device.

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DO - 10.1109/OFS.2002.1000517

M3 - Conference publication

SN - 0-7803-7289-1

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BT - 15th Optical Fiber Sensors conference technical digest, 2002

PB - IEEE

T2 - 15th conference on Optical Fibre Sensors

Y2 - 10 May 2002

ER -

A high sensitivity long period grating Mach-Zehnder refractometer

Abstract

Conference

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