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 language | English |
|---|---|
| Article number | 7021904 |
| Journal | IEEE Photonics Journal |
| Volume | 7 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2015 Feb 1 |
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All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering
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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 journal › Article
TY - JOUR
T1 - Suspended ring-core photonic crystal fiber gas sensor with high sensitivity and fast response
AU - Kassani, Sahar Hosseinzadeh
AU - Khazaeinezhad, Reza
AU - Jung, Yongmin
AU - Kobelke, Jens
AU - Oh, Kyunghwan
PY - 2015/2/1
Y1 - 2015/2/1
N2 - 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.
AB - 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.
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U2 - 10.1109/JPHOT.2015.2396121
DO - 10.1109/JPHOT.2015.2396121
M3 - Article
AN - SCOPUS:84923273114
VL - 7
JO - IEEE Photonics Journal
JF - IEEE Photonics Journal
SN - 1943-0655
IS - 1
M1 - 7021904
ER -