A novel fiber-optic light concentrator with scattering parts

Makoto Tsubokawa, Shinjo Tateyama

Research output: Contribution to journalArticle

2 Citations (Scopus)

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 wellknown 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.

Original languageEnglish
Pages (from-to)93-100
Number of pages8
JournalIEICE Transactions on Electronics
VolumeE97-C
Issue number2
DOIs
Publication statusPublished - 2014 Feb

Fingerprint

Multiplexing equipment
Fiber optics
Scattering
Waveguides
Optical fibers
Solar concentrators
Receiving antennas
Wavelength

Keywords

  • Light concentrator
  • Optical antenna
  • Optical fiber

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

Cite this

A novel fiber-optic light concentrator with scattering parts. / Tsubokawa, Makoto; Tateyama, Shinjo.

In: IEICE Transactions on Electronics, Vol. E97-C, No. 2, 02.2014, p. 93-100.

Research output: Contribution to journalArticle

@article{d04c629df0ec45c1aaf70ae21fd97a92,
title = "A novel fiber-optic light concentrator with scattering parts",
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 wellknown 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 = "Light concentrator, Optical antenna, Optical fiber",
author = "Makoto Tsubokawa and Shinjo Tateyama",
year = "2014",
month = "2",
doi = "10.1587/transele.E97.C.93",
language = "English",
volume = "E97-C",
pages = "93--100",
journal = "IEICE Transactions on Electronics",
issn = "0916-8524",
publisher = "Maruzen Co., Ltd/Maruzen Kabushikikaisha",
number = "2",

}

TY - JOUR

T1 - A novel fiber-optic light concentrator with scattering parts

AU - Tsubokawa, Makoto

AU - Tateyama, Shinjo

PY - 2014/2

Y1 - 2014/2

N2 - 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 wellknown 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.

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 wellknown 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.

KW - Light concentrator

KW - Optical antenna

KW - Optical fiber

UR - http://www.scopus.com/inward/record.url?scp=84894147739&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84894147739&partnerID=8YFLogxK

U2 - 10.1587/transele.E97.C.93

DO - 10.1587/transele.E97.C.93

M3 - Article

VL - E97-C

SP - 93

EP - 100

JO - IEICE Transactions on Electronics

JF - IEICE Transactions on Electronics

SN - 0916-8524

IS - 2

ER -