Long-distance remote simultaneous measurement of strain and temperature based on a Raman fiber laser with a single FBG embedded in a quartz plate

2006 ◽  
Author(s):  
Young-Geun Han ◽  
Thi Van Anh Tran ◽  
Ju Han Lee ◽  
Sang Bae Lee
Keyword(s):  
Fiber Laser ◽  
Simultaneous Measurement ◽  
Quartz Plate ◽  
Long Distance ◽  
Raman Fiber Laser

Long distance simultaneous measurement of bending and temperature based on a dual-wavelength Raman fiber laser

2011 ◽  
Author(s):  
Oh-Jang Kwon ◽  
Hyun-Joo Kim ◽  
Min-Seok Yoon ◽  
Sangoh Park ◽  
Youngbo Shim ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Simultaneous Measurement ◽  
Dual Wavelength ◽  
Long Distance ◽  
Raman Fiber Laser

Multiwavelength Raman-fiber-laser-based long-distance remote sensor for simultaneous measurement of strain and temperature

2005 ◽  
Vol 30 (11) ◽  
pp. 1282 ◽  
Author(s):  
Young-Geun Han ◽  
T. V.A. Tran ◽  
Sang-Hyuck Kim ◽  
Sang Bae Lee
Keyword(s):  
Fiber Laser ◽  
Simultaneous Measurement ◽  
Long Distance ◽  
Raman Fiber Laser ◽  
Remote Sensor

Short-pulse gain-switched Raman fiber laser based on conventional silica fibers

2021 ◽  
Vol 141 ◽  
pp. 107154
Author(s):  
Changjun Quan ◽  
Zeqiu Hu ◽  
Duanduan Wu ◽  
Rongping Wang ◽  
Shixun Dai ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Short Pulse ◽  
Raman Fiber Laser ◽  
Silica Fibers

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.

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