A Novel Fiber-Optic Light Concentrator with Scattering Parts

Makoto TSUBOKAWA; Shinjo TATEYAMA

doi:10.1587/transele.E97.C.93

A Novel Fiber-Optic Light Concentrator with Scattering Parts

Makoto TSUBOKAWA, Shinjo TATEYAMA

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We have designed a novel fiber-optic light concentrator with scattering layers and evaluated the light concentration characteristics by ray-trace simulations as functions of the parameters of the incident light angle and wavelength, as well as the waveguide structure. Unlike well-known luminescent solar concentrators, in our models, illuminating light is directly captured through the proposed waveguide structure. The optical efficiency in our fiber-optic models is remarkably improved in long-length regions compared with that in simple slab waveguides. In addition, the waveguide length required to effectively collect light is extended to 300mm and 1.5m for optical fibers with 1- and 10-mm core diameters, respectively, which are ten times longer than those in slab waveguides with an equivalent scale. Because of the cylindrical structure of optical fibers, we have also evaluated the sensitivity of our models to surrounding light. Consequently, an obvious directional property containing single or three peaks of the sensitivity is clarified, and their widths can be tuned by changing the width of the scattering parts. These results suggest that our models are suited for sensor devices such as optical receiving antennas, rather than simple light concentrators. Finally, we model a fiber-optic probe as an application and evaluate the light concentration characteristics when the concentrator is serially concatenated with a normal optical fiber.

Publication: IEICE TRANSACTIONS on Electronics Vol.E97-C No.2 pp.93-100

Publication Date: 2014/02/01

Publicized

Online ISSN: 1745-1353

DOI: 10.1587/transele.E97.C.93

Type of Manuscript: PAPER

Category: Electromagnetic Theory

Authors

Makoto TSUBOKAWA
Waseda University
Shinjo TATEYAMA
Hitachi, Ltd.

Keyword

optical fiber, light concentrator, optical antenna

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Makoto TSUBOKAWA, Shinjo TATEYAMA, "A Novel Fiber-Optic Light Concentrator with Scattering Parts" in IEICE TRANSACTIONS on Electronics, vol. E97-C, no. 2, pp. 93-100, February 2014, doi: 10.1587/transele.E97.C.93.
Abstract: We have designed a novel fiber-optic light concentrator with scattering layers and evaluated the light concentration characteristics by ray-trace simulations as functions of the parameters of the incident light angle and wavelength, as well as the waveguide structure. Unlike well-known luminescent solar concentrators, in our models, illuminating light is directly captured through the proposed waveguide structure. The optical efficiency in our fiber-optic models is remarkably improved in long-length regions compared with that in simple slab waveguides. In addition, the waveguide length required to effectively collect light is extended to 300mm and 1.5m for optical fibers with 1- and 10-mm core diameters, respectively, which are ten times longer than those in slab waveguides with an equivalent scale. Because of the cylindrical structure of optical fibers, we have also evaluated the sensitivity of our models to surrounding light. Consequently, an obvious directional property containing single or three peaks of the sensitivity is clarified, and their widths can be tuned by changing the width of the scattering parts. These results suggest that our models are suited for sensor devices such as optical receiving antennas, rather than simple light concentrators. Finally, we model a fiber-optic probe as an application and evaluate the light concentration characteristics when the concentrator is serially concatenated with a normal optical fiber.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E97.C.93/_p

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@ARTICLE{e97-c_2_93,
author={Makoto TSUBOKAWA, Shinjo TATEYAMA, },
journal={IEICE TRANSACTIONS on Electronics},
title={A Novel Fiber-Optic Light Concentrator with Scattering Parts},
year={2014},
volume={E97-C},
number={2},
pages={93-100},
abstract={We have designed a novel fiber-optic light concentrator with scattering layers and evaluated the light concentration characteristics by ray-trace simulations as functions of the parameters of the incident light angle and wavelength, as well as the waveguide structure. Unlike well-known luminescent solar concentrators, in our models, illuminating light is directly captured through the proposed waveguide structure. The optical efficiency in our fiber-optic models is remarkably improved in long-length regions compared with that in simple slab waveguides. In addition, the waveguide length required to effectively collect light is extended to 300mm and 1.5m for optical fibers with 1- and 10-mm core diameters, respectively, which are ten times longer than those in slab waveguides with an equivalent scale. Because of the cylindrical structure of optical fibers, we have also evaluated the sensitivity of our models to surrounding light. Consequently, an obvious directional property containing single or three peaks of the sensitivity is clarified, and their widths can be tuned by changing the width of the scattering parts. These results suggest that our models are suited for sensor devices such as optical receiving antennas, rather than simple light concentrators. Finally, we model a fiber-optic probe as an application and evaluate the light concentration characteristics when the concentrator is serially concatenated with a normal optical fiber.},
keywords={},
doi={10.1587/transele.E97.C.93},
ISSN={1745-1353},
month={February},}

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TY - JOUR
TI - A Novel Fiber-Optic Light Concentrator with Scattering Parts
T2 - IEICE TRANSACTIONS on Electronics
SP - 93
EP - 100
AU - Makoto TSUBOKAWA
AU - Shinjo TATEYAMA
PY - 2014
DO - 10.1587/transele.E97.C.93
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E97-C
IS - 2
JA - IEICE TRANSACTIONS on Electronics
Y1 - February 2014
AB - We have designed a novel fiber-optic light concentrator with scattering layers and evaluated the light concentration characteristics by ray-trace simulations as functions of the parameters of the incident light angle and wavelength, as well as the waveguide structure. Unlike well-known luminescent solar concentrators, in our models, illuminating light is directly captured through the proposed waveguide structure. The optical efficiency in our fiber-optic models is remarkably improved in long-length regions compared with that in simple slab waveguides. In addition, the waveguide length required to effectively collect light is extended to 300mm and 1.5m for optical fibers with 1- and 10-mm core diameters, respectively, which are ten times longer than those in slab waveguides with an equivalent scale. Because of the cylindrical structure of optical fibers, we have also evaluated the sensitivity of our models to surrounding light. Consequently, an obvious directional property containing single or three peaks of the sensitivity is clarified, and their widths can be tuned by changing the width of the scattering parts. These results suggest that our models are suited for sensor devices such as optical receiving antennas, rather than simple light concentrators. Finally, we model a fiber-optic probe as an application and evaluate the light concentration characteristics when the concentrator is serially concatenated with a normal optical fiber.
ER -