Chemically-Etched Optical Fiber Tapers for Adiabatic Fundamental Mode Evolution Over O-and C-Bands

The adiabatically tapered subwavelength-scale optical fiber tapers (OFTs) have been of interest for many photonic applications. We demonstrate chemical etching-based adiabatic OFTs and their relaxed adiabaticity conditions over broad operation wavelength ranges. The etched OFTs show adiabatically-va...

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Bibliographic Details
Published inJournal of lightwave technology Vol. 40; no. 14; pp. 4832 - 4840
Main Authors Son, Gyeongho, Pradono, Rizki Arif, Choi, Jiwon, Jeong, Youngjae, Han, Dae Seok, Syahadi, Mohamad, Jung, Youngho, Kwon, Kyungmok, Bae, Hagyoul, Yu, Kyoungsik
Format Journal Article
LanguageEnglish
Published New York IEEE 15.07.2022
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Adiabatic flow
Adiabaticity
Batch production
Chemical etching
Chemicals
evanescent field
optical coupling
Optical device fabrication
Optical fiber cables
optical fiber taper
Optical fibers
Rough surfaces
Surface roughness
tapered fiber
Tapering
waveguide
Waveguides
Wet etching
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Summary:The adiabatically tapered subwavelength-scale optical fiber tapers (OFTs) have been of interest for many photonic applications. We demonstrate chemical etching-based adiabatic OFTs and their relaxed adiabaticity conditions over broad operation wavelength ranges. The etched OFTs show adiabatically-varying tapering angles as small as 1° and mechanical flexibility. When compared to the conventional methods, the proposed OFTs and their fabrication techniques may allow reproducible batch production routes for adiabatic OFTs with enhanced uniformity, enabling a variety of applications in subwavelength-scale light-matter interactions and efficient light coupling between waveguides.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2022.3166774