Pulse combination and compression in hollow-core fiber for few-cycle intense mid-infrared laser generation

2021 ◽  
Author(s):  
Junyu Qian ◽  
Pengfei Wang ◽  
Yujie Peng ◽  
Yanyan Li ◽  
Beijie Shao ◽  
...  
Keyword(s):  
Infrared Laser ◽  
Laser Generation ◽  
Hollow Core ◽  
Mid Infrared ◽  
Core Fiber

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.

Quasi-all-fiber structure CW mid-infrared laser emission from gas-filled hollow-core silica fibers

2020 ◽  
Vol 121 ◽  
pp. 105794 ◽  
Author(s):  
Yulong Cui ◽  
Zhiyue Zhou ◽  
Wei Huang ◽  
Zhixian Li ◽  
Zefeng Wang
Keyword(s):  
Laser Emission ◽  
Infrared Laser ◽  
Hollow Core ◽  
Fiber Structure ◽  
Mid Infrared ◽  
Silica Fibers

scholarly journals Hollow core waveguide as mid-infrared laser modal beam filter

2015 ◽  
Vol 118 (11) ◽  
pp. 113102 ◽  
Author(s):  
P. Patimisco ◽  
A. Sampaolo ◽  
M. Giglio ◽  
J. M. Kriesel ◽  
F. K. Tittel ◽  
...  
Keyword(s):  
Infrared Laser ◽  
Hollow Core ◽  
Mid Infrared ◽  
Beam Filter

Hollow-Core-Fiber Delivery of Broadband Mid-Infrared Light for Remote Multi-Species Spectroscopy

2021 ◽  
Author(s):  
Kerr Johnson ◽  
Pablo Castro-Marin ◽  
Carl Farrell ◽  
Ian A. Davidson ◽  
Gregory T. Jasion ◽  
...  
Keyword(s):  
Infrared Light ◽  
Hollow Core ◽  
Mid Infrared ◽  
Core Fiber
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