Distributed clad mode sensor in unmodified standard single-mode fiber with 8 centimeters resolution

Gil Bashan; Yosef London; H. Hagai Diamandi; Avi Zadok

doi:10.1117/12.2539558

Distributed clad mode sensor in unmodified standard single-mode fiber with 8 centimeters resolution

Gil Bashan, Yosef London, H. Hagai Diamandi, Avi Zadok

Bar-Ilan University - The Alexander Kofkin Faculty of Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

A distributed clad mode optical fiber sensor is reported for the first time. Random-Access coupling of light to a clad mode of a standard single-mode fiber is achieved using Brillouin dynamic gratings. Coupling is restricted to a single, few-centimeters-long section that is scanned along a fiber under test. No permanent gratings are required, and all optical fields are launched and detected in the core mode. The coupling spectrum is affected by the local refractive index of the substance outside the cladding. Distributed mapping of surrounding media is reported over 2 meters of fiber with 8 centimeters resolution. The sensitivity of outside index measurements is between 4e-4 and 4e-3 refractive index units.

Original language	English
Title of host publication	Seventh European Workshop on Optical Fibre Sensors
Editors	Kyriacos Kalli, Gilberto Brambilla, Sinead O'Keeffe
Publisher	SPIE
ISBN (Electronic)	9781510631236
DOIs	https://doi.org/10.1117/12.2539558
State	Published - 2019
Event	7th European Workshop on Optical Fibre Sensors, EWOFS 2019 - Limassol, Cyprus Duration: 1 Oct 2019 → 4 Oct 2019

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	11199
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	7th European Workshop on Optical Fibre Sensors, EWOFS 2019
Country/Territory	Cyprus
City	Limassol
Period	1/10/19 → 4/10/19

Bibliographical note

Publisher Copyright:
© COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.

Keywords

Brillouin dynamic gratings
Distributed sensors
Fiber optics
Nonlinear optics
Optical fiber sensors
Opto-mechanics.
Refractive index measurement
Stimulated Brillouin scattering

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10.1117/12.2539558

Cite this

Bashan, G., London, Y., Hagai Diamandi, H., & Zadok, A. (2019). Distributed clad mode sensor in unmodified standard single-mode fiber with 8 centimeters resolution. In K. Kalli, G. Brambilla, & S. O'Keeffe (Eds.), Seventh European Workshop on Optical Fibre Sensors [111991T] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11199). SPIE. https://doi.org/10.1117/12.2539558

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title = "Distributed clad mode sensor in unmodified standard single-mode fiber with 8 centimeters resolution",

abstract = "A distributed clad mode optical fiber sensor is reported for the first time. Random-Access coupling of light to a clad mode of a standard single-mode fiber is achieved using Brillouin dynamic gratings. Coupling is restricted to a single, few-centimeters-long section that is scanned along a fiber under test. No permanent gratings are required, and all optical fields are launched and detected in the core mode. The coupling spectrum is affected by the local refractive index of the substance outside the cladding. Distributed mapping of surrounding media is reported over 2 meters of fiber with 8 centimeters resolution. The sensitivity of outside index measurements is between 4e-4 and 4e-3 refractive index units.",

keywords = "Brillouin dynamic gratings, Distributed sensors, Fiber optics, Nonlinear optics, Optical fiber sensors, Opto-mechanics., Refractive index measurement, Stimulated Brillouin scattering",

author = "Gil Bashan and Yosef London and {Hagai Diamandi}, H. and Avi Zadok",

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Bashan, G, London, Y, Hagai Diamandi, H & Zadok, A 2019, Distributed clad mode sensor in unmodified standard single-mode fiber with 8 centimeters resolution. in K Kalli, G Brambilla & S O'Keeffe (eds), Seventh European Workshop on Optical Fibre Sensors., 111991T, Proceedings of SPIE - The International Society for Optical Engineering, vol. 11199, SPIE, 7th European Workshop on Optical Fibre Sensors, EWOFS 2019, Limassol, Cyprus, 1/10/19. https://doi.org/10.1117/12.2539558

Distributed clad mode sensor in unmodified standard single-mode fiber with 8 centimeters resolution. / Bashan, Gil; London, Yosef; Hagai Diamandi, H. et al.
Seventh European Workshop on Optical Fibre Sensors. ed. / Kyriacos Kalli; Gilberto Brambilla; Sinead O'Keeffe. SPIE, 2019. 111991T (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11199).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Distributed clad mode sensor in unmodified standard single-mode fiber with 8 centimeters resolution

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Keywords

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