Pulsed and CW Mid-infrared Acetylene Gas Hollow-Core Fiber Laser

2016 ◽  
Author(s):  
Fei Yu ◽  
Muhammad Rosdi Abu Hassan ◽  
William Wadsworth ◽  
Jonathan Knight
Keyword(s):  
Fiber Laser ◽  
Hollow Core ◽  
Mid Infrared ◽  
Core Fiber

Tunable mid-infrared fiber laser source based on acetylene-filled hollow-core fiber

Laser Physics ◽  
2018 ◽  
Vol 28 (9) ◽  
pp. 095103
Author(s):  
Zhiyue Zhou ◽  
Ni Tang ◽  
Zhixian Li ◽  
Zefeng Wang ◽  
Weihong Hua
Keyword(s):  
Fiber Laser ◽  
Laser Source ◽  
Hollow Core ◽  
Mid Infrared ◽  
Core Fiber

Line-tunable CW Lasing of Mid-infrared Acetylene Gas Hollow Core Fiber Laser

2016 ◽  
Author(s):  
Fei Yu ◽  
Muhammad Rosdi Abu Hassan ◽  
William Wadsworth ◽  
Jonathan Knight
Keyword(s):  
Fiber Laser ◽  
Hollow Core ◽  
Mid Infrared ◽  
Core Fiber

scholarly journals Mid-infrared photoacoustic gas monitoring driven by a gas-filled hollow-core fiber laser

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yazhou Wang ◽  
Yuyang Feng ◽  
Abubakar I. Adamu ◽  
Manoj K. Dasa ◽  
J. E. Antonio-Lopez ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Signal To Noise Ratio ◽  
High Sensitivity ◽  
Laser Source ◽  
High Signal ◽  
Mid Infrared ◽  
Raman Fiber Laser ◽  
Custom Made ◽  
Core Fiber ◽  
Detection Technologies

AbstractDevelopment of novel mid-infrared (MIR) lasers could ultimately boost emerging detection technologies towards innovative spectroscopic and imaging solutions. Photoacoustic (PA) modality has been heralded for years as one of the most powerful detection tools enabling high signal-to-noise ratio analysis. Here, we demonstrate a novel, compact and sensitive MIR-PA system for carbon dioxide (CO2) monitoring at its strongest absorption band by combining a gas-filled fiber laser and PA technology. Specifically, the PA signals were excited by a custom-made hydrogen (H2) based MIR Raman fiber laser source with a pulse energy of ⁓ 18 μJ, quantum efficiency of ⁓ 80% and peak power of ⁓ 3.9 kW. A CO2 detection limit of 605 ppbv was attained from the Allan deviation. This work constitutes an alternative method for advanced high-sensitivity gas detection.

Diode-pumped single-pass tunable mid-infrared gas Raman source by methane-filled hollow-core fiber

2019 ◽  
Vol 16 (8) ◽  
pp. 085107
Author(s):  
Wei Huang ◽  
Yulong Cui ◽  
Zhixian Li ◽  
Zhiyue Zhou ◽  
Yubin Chen ◽  
...  
Keyword(s):  
Hollow Core ◽  
Mid Infrared ◽  
Single Pass ◽  
Diode Pumped ◽  
Core Fiber

scholarly journals Antiresonant Hollow-Core Fiber-Based Dual Gas Sensor for Detection of Methane and Carbon Dioxide in the Near- and Mid-Infrared Regions

Sensors ◽  
2020 ◽  
Vol 20 (14) ◽  
pp. 3813 ◽  
Author(s):  
Piotr Jaworski ◽  
Paweł Kozioł ◽  
Karol Krzempek ◽  
Dakun Wu ◽  
Fei Yu ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Gas Sensor ◽  
Gas Sensing ◽  
Simultaneous Detection ◽  
Hollow Core ◽  
Mid Infrared ◽  
Sensing Applications ◽  
Core Fiber ◽  
Sensor Configuration ◽  
Carbon Dioxide Co2

In this work, we present for the first time a laser-based dual gas sensor utilizing a silica-based Antiresonant Hollow-Core Fiber (ARHCF) operating in the Near- and Mid-Infrared spectral region. A 1-m-long fiber with an 84-µm diameter air-core was implemented as a low-volume absorption cell in a sensor configuration utilizing the simple and well-known Wavelength Modulation Spectroscopy (WMS) method. The fiber was filled with a mixture of methane (CH4) and carbon dioxide (CO2), and a simultaneous detection of both gases was demonstrated targeting their transitions at 3.334 µm and 1.574 µm, respectively. Due to excellent guidance properties of the fiber and low background noise, the proposed sensor reached a detection limit down to 24 parts-per-billion by volume for CH4 and 144 parts-per-million by volume for CO2. The obtained results confirm the suitability of ARHCF for efficient use in gas sensing applications for over a broad spectral range. Thanks to the demonstrated low loss, such fibers with lengths of over one meter can be used for increasing the laser-gas molecules interaction path, substituting bulk optics-based multipass cells, while delivering required flexibility, compactness, reliability and enhancement in the sensor’s sensitivity.

Optically pumped gas terahertz fiber laser based on gold-coated quartz hollow-core fiber

2019 ◽  
Vol 58 (11) ◽  
pp. 2828
Author(s):  
Sun Shuai ◽  
Guo Zhang ◽  
Wei Shi ◽  
Zhaoshuo Tian ◽  
Quan Sheng ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Hollow Core ◽  
Optically Pumped ◽  
Core Fiber

Near-Gaussian Spatial Mode from a Mid-IR Acetylene-filled Hollow-Core Fiber Laser

2016 ◽  
Author(s):  
N. Dadashzadeh ◽  
M. Thirugnanasambandam ◽  
K. Weerasinghe ◽  
B. Debord ◽  
M. Chafer ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Spatial Mode ◽  
Hollow Core ◽  
Core Fiber
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