Spatial mode filtering of mid-infrared (mid-IR) laser beams with hollow core fiber optics

2013 ◽  
Author(s):  
Jason M. Kriesel ◽  
Gina M. Hagglund ◽  
Nahum Gat ◽  
Vincenzo Spagnolo ◽  
Pietro Patimisco
Keyword(s):  
Fiber Optics ◽  
Laser Beams ◽  
Spatial Mode ◽  
Hollow Core ◽  
Mid Infrared ◽  
Ir Laser ◽  
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.

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

Hollow core fiber optics for mid-wave and long-wave infrared spectroscopy

2011 ◽  
Author(s):  
Jason M. Kriesel ◽  
Nahum Gat ◽  
Bruce E. Bernacki ◽  
Rebecca L. Erikson ◽  
Bret D. Cannon ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Fiber Optics ◽  
Hollow Core ◽  
Long Wave ◽  
Core Fiber ◽  
Long Wave Infrared

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

Anti-Resonant, Mid-Infrared Silica Hollow-Core Fiber

2020 ◽  
Author(s):  
Ian A. Davidson ◽  
Shuichiro Rikimi ◽  
Hesham Sakr ◽  
Gregory T. Jasion ◽  
Thomas D. Bradley ◽  
...  
Keyword(s):  
Hollow Core ◽  
Mid Infrared ◽  
Core Fiber
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