scholarly journals Role of hydrogen loading and glass composition on the defects generated by the femtosecond laser writing process of fiber Bragg gratings

2012 ◽  
Vol 2 (11) ◽  
pp. 1663 ◽  
Author(s):  
Neil Troy ◽  
Christopher W. Smelser ◽  
Denise M. Krol
Keyword(s):  
Femtosecond Laser ◽  
Glass Composition ◽  
Writing Process ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Laser Writing

scholarly journals Complex diffraction and dispersion effects in femtosecond laser writing of fiber Bragg gratings using the phase mask technique

2019 ◽  
Vol 27 (22) ◽  
pp. 32536 ◽  
Author(s):  
Nurmemet Abdukerim ◽  
Dan Grobnic ◽  
Rune Lausten ◽  
Cyril Hnatovsky ◽  
Stephen J. Mihailov
Keyword(s):  
Femtosecond Laser ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Phase Mask ◽  
Laser Writing ◽  
Dispersion Effects

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.

Wavelength tunable fiber Bragg gratings fabricated by stress annealing assisted femtosecond laser direct writing

2021 ◽  
Vol 61 ◽  
pp. 102427
Author(s):  
Xiaoyan Sun ◽  
Zikun Chang ◽  
Li Zeng ◽  
Xinran Dong ◽  
Youwang Hu ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Direct Writing ◽  
Laser Direct Writing ◽  
Wavelength Tunable

scholarly journals Ultrafast femtosecond-laser-induced fiber Bragg gratings in air-hole microstructured fibers for high-temperature pressure sensing

2010 ◽  
Vol 35 (9) ◽  
pp. 1443 ◽  
Author(s):  
Charles M. Jewart ◽  
Qingqing Wang ◽  
John Canning ◽  
Dan Grobnic ◽  
Stephen J. Mihailov ◽  
...  
Keyword(s):  
High Temperature ◽  
Femtosecond Laser ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Pressure Sensing ◽  
Microstructured Fibers ◽  
Air Hole

On the role of Ge-doping concentration in the refractive index rollover and thermal annealing characteristics of type IIa fiber Bragg gratings

2014 ◽  
Vol 53 (11) ◽  
pp. 117103
Author(s):  
Jitendra Kumar ◽  
Om Prakash ◽  
Ramakant Mahakud ◽  
Sachin Kumar Agrawal ◽  
Sudhir K. Dixit ◽  
...  
Keyword(s):  
Refractive Index ◽  
Thermal Annealing ◽  
Doping Concentration ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Ge Doping

scholarly journals Electro–optical tunable waveguide embedded multiscan Bragg gratings in lithium niobate by direct femtosecond laser writing

2014 ◽  
Vol 22 (19) ◽  
pp. 23339 ◽  
Author(s):  
Sebastian Kroesen ◽  
Wolfgang Horn ◽  
Jörg Imbrock ◽  
Cornelia Denz
Keyword(s):  
Lithium Niobate ◽  
Femtosecond Laser ◽  
Bragg Gratings ◽  
Laser Writing ◽  
Tunable Waveguide

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 post-processing mechanisms for refractive index tuning of fiber Bragg gratings

2021 ◽  
Author(s):  
Timothy O. Imogore ◽  
Thorsten A. Goebel ◽  
Ria G. Krämer ◽  
Christian Matzdorf ◽  
Daniel Richter ◽  
...  
Keyword(s):  
Refractive Index ◽  
Femtosecond Laser ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Post Processing ◽  
Processing Mechanisms
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