Tellurite Hollow-Core Antiresonant Fiber-Coupled Quantum Cascade Laser Absorption Spectroscopy

Yao, Chenyu; Hu, Mengyuan; Ventura, Andrea; Hayashi, Juliano G.; Poletti, F.; Ren, Wei

doi:10.1109/jlt.2021.3088140

Cited by 18 publications

(14 citation statements)

References 36 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%

“…The most recent work published by Yao et al in [24] was focused on developing a TDLAS-based gas sensor utilizing a tellurite glass-based ARHCF enabling efficient light guidance above 5 µm wavelength. The 21 cm long ARHCF consisted of six non-adjacent capillaries forming its cladding and defining the hollow core region with a diameter of 75 µm, similar to the fiber shown in Figure 1e.…”

Section: Tunable Diode Laser Absorption Spectroscopymentioning

confidence: 99%

“…As the lock-in amplifier allows demodulation of the measured signal at the desired frequency with a limited demodulation bandwidth, the noise level, which manifests itself especially in the lower frequency range, can be reduced. Therefore, the signal-to-noise ratio (SNR) of the sensor can be significantly increased in comparison to the TDLAS-based technique, which directly enhances the detection capability of the gas spectrometers [24]. It has already been demonstrated by various research groups that a combination of the WMS technique with ARHCFs leads to a significant improvement in the sensor's detection capability, which results from the reduction of the fringe noise [21,24,38].…”

Section: Wavelength Modulation Spectroscopymentioning

confidence: 99%

“…Therefore, the signal-to-noise ratio (SNR) of the sensor can be significantly increased in comparison to the TDLAS-based technique, which directly enhances the detection capability of the gas spectrometers [24]. It has already been demonstrated by various research groups that a combination of the WMS technique with ARHCFs leads to a significant improvement in the sensor's detection capability, which results from the reduction of the fringe noise [21,24,38]. When the configurations of the sensors described in Section 3 of this manuscript were modified to allow WMS-based signal acquisition, the obtained NEA values were decreased by even two orders of magnitude compared to sensors operating in the pure TDLAS regime [24].…”

Section: Wavelength Modulation Spectroscopymentioning

confidence: 99%

“…Examples of the ARHCFs used in gas sensing applications are depicted in Figure 1. Researchers have shown that the ARHCFaided gas sensors can target molecules with transitions in the wavelength range up to 5.26 µm, which is unreachable with the use of other types of HCFs [20,24]. Furthermore, benefiting from their ability to simultaneously guide laser radiation within two dissimilar spectral bands, the ARHCF-based detectors can be used to analyze gas mixtures that contain molecules having transitions in both near-and mid-IR [8].…”

Section: Introductionmentioning

confidence: 99%

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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%

Section: Tunable Diode Laser Absorption Spectroscopymentioning

confidence: 99%

Section: Wavelength Modulation Spectroscopymentioning

confidence: 99%

Section: Wavelength Modulation Spectroscopymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Jaworski

2021

Sensors

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Sensitive carbon monoxide detection based on laser absorption spectroscopy with hollow‐core antiresonant fiber

Chen

Qiao

Zhao

et al. 2023

Micro & Optical Tech Letters

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A carbon monoxide (CO) sensing system based on hollow‐core antiresonant fiber (HC‐ARF) is developed using tunable diode laser absorption spectroscopy (TDLAS) technology. A HC‐ARF with length of 75 cm is applied as light transmission passage and gas chamber. Compared with conventional multipass cell, HC‐ARF has the advantages of compact volume, low cost, steady transmission, and simple optical alignment. Two techniques of direct absorption spectroscopy (DAS) and wavelength modulation spectroscopy (WMS) were used respectively. In DAS, the minimum detection limit (MDL) was 12251.04 ppm. In WMS, the modulation depth of this HC‐ARF based CO‐TDLAS sensor was optimized to be 0.13 cm−1 and the R‐squared numeric of the linear relationship between the peak of the 2 f signal and the gas concentration was 0.99, indicating that the system has a nice linear responsiveness to the CO gas concentration. Finally, the MDL of the sensor was calculated to be 196.33 ppm.

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Dual-band light-induced thermoelastic spectroscopy utilizing an antiresonant hollow-core fiber-based gas absorption cell

Bojęś,

Jaworski,

Pokryszka

et al. 2023

Appl. Phys. B

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In this paper, dual-band gas detection using a combination of the light-induced thermoelastic spectroscopy (LITES) and an antiresonant hollow-core fiber-based (ARHCF) gas absorption cell is demonstrated. The broad wavelength operation capability of a standard 32 kHz quartz tuning fork and the self-developed fiber-based gas absorption cell was exploited to demonstrate quasi-simultaneous detection of N2O and CO2, at 4570 nm (2188.2 cm−1) and 2006 nm (4985.9 cm−1), respectively. The signal analysis was based on the wavelength modulation spectroscopy technique, allowing to achieve a noise equivalent absorption coefficient (NEA) of 8.6 × 10–7 cm−1 and 1.7 × 10–6 cm−1 for N2O and CO2, respectively. The results indicate that the combination of ARHCFs with the LITES method is well suited for the design of broadband gas detectors and show remarkable potential in the fabrication of miniaturized, versatile and relatively inexpensive gas sensors operating over a wide spectral range, thus allowing multigas detection.

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Tellurite Hollow-Core Antiresonant Fiber-Coupled Quantum Cascade Laser Absorption Spectroscopy

Cited by 18 publications

References 36 publications

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

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

Sensitive carbon monoxide detection based on laser absorption spectroscopy with hollow‐core antiresonant fiber

Dual-band light-induced thermoelastic spectroscopy utilizing an antiresonant hollow-core fiber-based gas absorption cell

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