Femtosecond laser induced optical fiber Bragg gratings (FBGs) for harsh environment sensing applications

2015 ◽  
Author(s):  
S. J. Mihailov ◽  
D. Grobnic ◽  
R. B. Walker ◽  
P. Lu ◽  
H. Ding
Keyword(s):  
Femtosecond Laser ◽  
Optical Fiber ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Harsh Environment ◽  
Sensing Applications

Quantitative morphology of femtosecond laser-written point-by-point optical fiber Bragg gratings

2021 ◽  
Author(s):  
Saurabh Bhardwaj ◽  
Toney Fernandez ◽  
Simon Gross ◽  
Michael Withford ◽  
Michael Steel
Keyword(s):  
Femtosecond Laser ◽  
Optical Fiber ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Quantitative Morphology

Femtosecond laser direct written off-axis fiber Bragg gratings for sensing applications

2020 ◽  
Vol 128 ◽  
pp. 106227
Author(s):  
Duarte Viveiros ◽  
Vítor A. Amorim ◽  
João M. Maia ◽  
Susana Silva ◽  
Orlando Frazão ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Sensing Applications

Features of Femtosecond Micromachining of Solid Transparent Materials

2021 ◽  
Vol 316 ◽  
pp. 993-998
Author(s):  
Anton S. Chernikov ◽  
Ruslan V. Chkalov
Keyword(s):  
Laser Radiation ◽  
Femtosecond Laser ◽  
Optical Fiber ◽  
Spectral Characteristics ◽  
Fiber Bragg Gratings ◽  
Single Mode ◽  
Bragg Gratings ◽  
Femtosecond Laser Radiation ◽  
Third Order ◽  
Correction System

The paper reports the inscription of second- and third-order fiber Bragg gratings (FBGs) in single-mode optical fiber (SMF-28e+) via the line-by-line (LbL) and the point-by-point (PbP) methods using femtosecond laser radiation. The use of these methods jointly with based on an automatic spatial deviation correction system is considered. The approach allows to significantly improve spectral characteristics of FBG without the loss of fabrication performance.

scholarly journals Ultrafast Laser Processing of Optical Fibers for Sensing Applications

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1447
Author(s):  
Stephen J. Mihailov ◽  
Cyril Hnatovsky ◽  
Nurmemet Abdukerim ◽  
Robert B. Walker ◽  
Ping Lu ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Fiber Bragg Gratings ◽  
Sensor Arrays ◽  
Bragg Gratings ◽  
Phase Mask ◽  
Distributed Temperature Sensing ◽  
Fiber Gratings ◽  
Laser Writing ◽  
Oil Pipeline ◽  
Sensing Applications

A review of recent progress in the use of infrared femtosecond lasers to fabricate optical fiber sensors that incorporate fiber Bragg gratings (FBG) and random fiber gratings (RFG) is presented. The important advancements in femtosecond laser writing based on the phase mask technique now allow through-the-coating (TTC) fabrication of Bragg gratings in ultra-thin fiber filaments, tilted fiber Bragg gratings, and 1000 °C-resistant fiber Bragg gratings with very strong cladding modes. As an example, through-the-coating femtosecond laser writing is used to manufacture distributed fiber Bragg grating sensor arrays for oil pipeline leak detection. The plane-by-plane femtosecond laser writing technique used for the inscription of random fiber gratings is also reviewed and novel applications of the resultant devices in distributed temperature sensing, fiber lasers and fiber laser sensors are discussed.

Reflective Optical Fiber Sensors Based on Tilted Fiber Bragg Gratings Fabricated With Femtosecond Laser

2013 ◽  
Vol 31 (3) ◽  
pp. 455-460 ◽  
Author(s):  
Chao Chen ◽  
Yong-Sen Yu ◽  
Rui Yang ◽  
Chuang Wang ◽  
Jing-Chun Guo ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Optical Fiber ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Optical Fiber Sensors ◽  
Fiber Sensors
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