Tapered Optical Fiber Couplers Fabricated by Droplet-Based Chemical Etching
This paper presents a fabrication method for 2 × 2 twisted fiber-optic directional couplers based on biconical low-loss tapered optical fibers using a two-step wet-etching technique with hydrofluoric acid-based droplets and surface tension-driven flows. The droplet-based wet etching of op...
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doaj-861309fcf5014fa3b7e63f644deef79c2021-03-29T17:43:40ZengIEEEIEEE Photonics Journal1943-06552017-01-01951810.1109/JPHOT.2017.27386618008744Tapered Optical Fiber Couplers Fabricated by Droplet-Based Chemical EtchingGyeongho Son0Youngho Jung1Kyoungsik Yu2School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South KoreaSchool of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South KoreaSchool of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South KoreaThis paper presents a fabrication method for 2 × 2 twisted fiber-optic directional couplers based on biconical low-loss tapered optical fibers using a two-step wet-etching technique with hydrofluoric acid-based droplets and surface tension-driven flows. The droplet-based wet etching of optical fibers allows us simple and cost-effective fabrication of tapered fibers and multiports directional couplers. The simulation results agree well with the experimental observations on the propagation losses, which can be monitored in real-time by measuring the transmitted optical powers during the chemical etching process. The fabricated 2 × 2 fiber-optic directional coupler shows wavelength-insensitive operation within the telecommunication C-band with an excess insertion loss of less than 0.5 dB.https://ieeexplore.ieee.org/document/8008744/Fiber optics systemswaveguideswaveguide devices |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Gyeongho Son Youngho Jung Kyoungsik Yu |
spellingShingle |
Gyeongho Son Youngho Jung Kyoungsik Yu Tapered Optical Fiber Couplers Fabricated by Droplet-Based Chemical Etching IEEE Photonics Journal Fiber optics systems waveguides waveguide devices |
author_facet |
Gyeongho Son Youngho Jung Kyoungsik Yu |
author_sort |
Gyeongho Son |
title |
Tapered Optical Fiber Couplers Fabricated by Droplet-Based Chemical Etching |
title_short |
Tapered Optical Fiber Couplers Fabricated by Droplet-Based Chemical Etching |
title_full |
Tapered Optical Fiber Couplers Fabricated by Droplet-Based Chemical Etching |
title_fullStr |
Tapered Optical Fiber Couplers Fabricated by Droplet-Based Chemical Etching |
title_full_unstemmed |
Tapered Optical Fiber Couplers Fabricated by Droplet-Based Chemical Etching |
title_sort |
tapered optical fiber couplers fabricated by droplet-based chemical etching |
publisher |
IEEE |
series |
IEEE Photonics Journal |
issn |
1943-0655 |
publishDate |
2017-01-01 |
description |
This paper presents a fabrication method for 2 × 2 twisted fiber-optic directional couplers based on biconical low-loss tapered optical fibers using a two-step wet-etching technique with hydrofluoric acid-based droplets and surface tension-driven flows. The droplet-based wet etching of optical fibers allows us simple and cost-effective fabrication of tapered fibers and multiports directional couplers. The simulation results agree well with the experimental observations on the propagation losses, which can be monitored in real-time by measuring the transmitted optical powers during the chemical etching process. The fabricated 2 × 2 fiber-optic directional coupler shows wavelength-insensitive operation within the telecommunication C-band with an excess insertion loss of less than 0.5 dB. |
topic |
Fiber optics systems waveguides waveguide devices |
url |
https://ieeexplore.ieee.org/document/8008744/ |
work_keys_str_mv |
AT gyeonghoson taperedopticalfibercouplersfabricatedbydropletbasedchemicaletching AT younghojung taperedopticalfibercouplersfabricatedbydropletbasedchemicaletching AT kyoungsikyu taperedopticalfibercouplersfabricatedbydropletbasedchemicaletching |
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1724197405633544192 |