Suspended ring-core photonic crystal fiber gas sensor with high sensitivity and fast response

Sahar Hosseinzadeh Kassani, Reza Khazaeinezhad, Yongmin Jung, Jens Kobelke, Kyunghwan Oh

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

We demonstrate the design and fabrication of an in-line evanescent field gas sensor based on a novel suspended ring-core photonic crystal fiber (PCF) to further overcome limitations in sensing capability. The suspended ring-core PCF is made by the stack-and-draw technique with a large central capillary of ∼60 μm and adapted small capillaries in a larger cladding tube. Sensing capabilities of two variations of the proposed suspended ring-core PCFs were investigated experimentally by detecting absorption lines of acetylene gas. The sensitivity of the two PCF structures was also numerically analyzed using a full-vectorial finite-element method. The dynamic response of the sensors was quantified in detail. The results demonstrated significant improvement in both sensitivity and response time of the suspended ring-core PCF as this special PCF can provide larger gas diffusion and higher overlap between the sensing species and the guided light than either a Ge-doped ring defect PCF or a conventional index-guided PCF.

Original languageEnglish
Article number7021904
JournalIEEE Photonics Journal
Volume7
Issue number1
DOIs
Publication statusPublished - 2015 Feb 1

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Photonic crystal fibers
Chemical sensors
photonics
fibers
sensitivity
rings
sensors
gases
crystals
Evanescent fields
gaseous diffusion
Diffusion in gases
Acetylene
dynamic response
acetylene
Dynamic response
finite element method
tubes
Finite element method
Fabrication

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Cite this

Kassani, Sahar Hosseinzadeh ; Khazaeinezhad, Reza ; Jung, Yongmin ; Kobelke, Jens ; Oh, Kyunghwan. / Suspended ring-core photonic crystal fiber gas sensor with high sensitivity and fast response. In: IEEE Photonics Journal. 2015 ; Vol. 7, No. 1.
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Suspended ring-core photonic crystal fiber gas sensor with high sensitivity and fast response. / Kassani, Sahar Hosseinzadeh; Khazaeinezhad, Reza; Jung, Yongmin; Kobelke, Jens; Oh, Kyunghwan.

In: IEEE Photonics Journal, Vol. 7, No. 1, 7021904, 01.02.2015.

Research output: Contribution to journalArticle

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