Sub-ppm CO detection in a sub-meter-long hollow-core negative curvature fiber using absorption spectroscopy at 2.3 μm

Yao, Chenyu; Xiao, Limin; Gao, Shoufei; Wang, Yingying; Wang, Pu; Kan, Ruifeng; Jin, Wei; Ren, Wei

doi:10.1016/j.snb.2019.127238

Cited by 46 publications

(20 citation statements)

References 27 publications

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“…Therefore, the application of the HCFs, especially the ARHCFs, seems to be a promising way to deliver low-volume, robust, and long optical paths. A successful demonstration of TDLAS-based gas sensors aided with ARHCFs has been already demonstrated by several research groups justifying the viability of this approach [21,24,35,38]. Nikodem et al reported in [21] a very simple carbon dioxide (CO 2 ) sensor configuration utilizing a silica-based 7 capillary ARHCF as depicted in Figure 3.…”

Section: Tunable Diode Laser Absorption Spectroscopymentioning

confidence: 98%

A Review of Antiresonant Hollow-Core Fiber-Assisted Spectroscopy of Gases

Jaworski

2021

Sensors

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Antiresonant Hollow-Core Fibers (ARHCFs), thanks to the excellent capability of guiding light in an air core with low loss over a very broad spectral range, have attracted significant attention of researchers worldwide who especially focus their work on laser-based spectroscopy of gaseous substances. It was shown that the ARHCFs can be used as low-volume, non-complex, and versatile gas absorption cells forming the sensing path length in the sensor, thus serving as a promising alternative to commonly used bulk optics-based configurations. The ARHCF-aided sensors proved to deliver high sensitivity and long-term stability, which justifies their suitability for this particular application. In this review, the recent progress in laser-based gas sensors aided with ARHCFs combined with various laser-based spectroscopy techniques is discussed and summarized.

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Section: Tunable Diode Laser Absorption Spectroscopymentioning

confidence: 98%

A Review of Antiresonant Hollow-Core Fiber-Assisted Spectroscopy of Gases

Jaworski

2021

Sensors

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“…It has also been demonstrated that significant suppression of the optical fringes can be achieved when coupling between the input fiber and HCF is carefully adjusted. In [72], Yao et al presented a setup for carbon monoxide sensing at 2.3 µm using direct laser absorption and WMS. A gas filling time of 5 s was measured and a detection limit of only 0.4 ppm was obtained (30 s averaging).…”

Section: Trace-gas Detection Using Hollow-core Fibers With Inhibited mentioning

confidence: 99%

Laser-Based Trace Gas Detection inside Hollow-Core Fibers: A Review

Nikodem

2020

Materials

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Thanks to the guidance of an optical wave in air, hollow-core fibers may serve as sampling cells in an optical spectroscopic system. This paper reviews applications of hollow-core optical fibers to laser-based gas sensing. Three types of hollow-core fibers are discussed: Hollow capillary waveguides, photonic band-gap fibers, and negative curvature fibers. Their advantages and drawbacks when used for laser-based trace gas detection are analyzed. Various examples of experimental sensing systems demonstrated in the literature over the past 20 years are discussed.

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“…Since the first photonic crystal fiber (PCF) was fabricated by Russell et al in 1996 [ 1 ], PCFs have been investigated extensively and applied in different optical fields, such as fiber laser, sensing, optical communication, and so on [ 2 , 3 , 4 , 5 , 6 , 7 , 8 ]. At present, the PCF-based optical devices, including polarization beam splitter (PBS), polarization filter, modulator, etc., have become the indispensable components in the all-fiber optical systems [ 9 , 10 , 11 , 12 , 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

A Novel Gold Film-Coated V-Shape Dual-Core Photonic Crystal Fiber Polarization Beam Splitter Covering the E + S + C + L + U Band

Yuan

Qiu

et al. 2021

Sensors

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In this paper, a novel gold film-coated V-shape dual-core photonic crystal fiber (V-DC-PCF) polarization beam splitter (PBS) based on surface plasmon resonance effect is proposed. The coupling lengths of the X-polarization (X-pol) and Y-polarization (Y-pol) and the corresponding coupling length ratio of the proposed V-DC-PCF PBS without gold film and with gold film are compared. The fiber structure parameters and thickness of the gold film are optimized through investigating their effects on the coupling lengths and coupling length ratio. As the propagation length increases, the normalized output powers of the X-pol and Y-pol of the proposed V-DC-PCF PBS at the three wavelengths 1.610, 1.631, and 1.650 μm are demonstrated. The relationships between the extinction ratio (ER), insertion loss (IL) and wavelength for the three splitting lengths (SLs) 188, 185, and 182 μm are investigated. Finally, it is demonstrated that for the proposed V-DC-PCF PBS, the optimal SL is 188 μm, the ILs of the X-pol and Y-pol are less than 0.22 dB, and the splitting bandwidth (SB) can cover the E + S + C + L + U band. The proposed V-DC-PCF PBS has the ultra-short SL, ultra-wide SB, and ultra-low IL, so it is expected to have important applications in the laser, sensing, and dense wavelength division multiplexing systems.

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Sub-ppm CO detection in a sub-meter-long hollow-core negative curvature fiber using absorption spectroscopy at 2.3 μm

Cited by 46 publications

References 27 publications

A Review of Antiresonant Hollow-Core Fiber-Assisted Spectroscopy of Gases

A Review of Antiresonant Hollow-Core Fiber-Assisted Spectroscopy of Gases

Laser-Based Trace Gas Detection inside Hollow-Core Fibers: A Review

A Novel Gold Film-Coated V-Shape Dual-Core Photonic Crystal Fiber Polarization Beam Splitter Covering the E + S + C + L + U Band

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