Modelling, fabrication and characterization of long period gratings inscribed by femtosecond laser

Optik ◽  
2021 ◽  
Vol 229 ◽  
pp. 166283
Author(s):  
Joana Vieira ◽  
Tiago Paixão ◽  
Paulo Antunes ◽  
Margarida Facão ◽  
Ana M. Rocha
Keyword(s):  
Femtosecond Laser ◽  
Long Period ◽  
Long Period Gratings ◽  
Fabrication And Characterization

Fabrication and characterization of arc-induced long period gratings in optical fibers with micro-channels

2020 ◽  
Author(s):  
Anubhav Srivastava ◽  
Flavio Esposito ◽  
Joao M. B. Pereira ◽  
Stefania Campopiano ◽  
Agostino Iadicicco
Keyword(s):  
Optical Fibers ◽  
Long Period ◽  
Long Period Gratings ◽  
Micro Channels ◽  
Fabrication And Characterization

Fabrication and characterization of long period gratings in pure-silica fibers

2019 ◽  
Author(s):  
Anubhav Srivastava ◽  
Flavio Esposito ◽  
Stefania Campopiano ◽  
Agostino Iadicicco
Keyword(s):  
Long Period ◽  
Pure Silica ◽  
Silica Fibers ◽  
Long Period Gratings ◽  
Fabrication And Characterization

Fabrication and Characterization of Si Nano-Columns by Femtosecond Laser

2012 ◽  
Vol 16 ◽  
pp. 15-20 ◽  
Author(s):  
Omid Tayefeh Ghalehbeygi ◽  
Vural Kara ◽  
Levent Trabzon ◽  
Selcuk Akturk ◽  
Huseyin Kizil
Keyword(s):  
Laser Ablation ◽  
Femtosecond Laser ◽  
Laser Beam ◽  
Chemical Etching ◽  
Silicon Surface ◽  
Laser Pulses ◽  
Laser Beam Profile ◽  
Fs Laser ◽  
Fabrication And Characterization

We fabricated Si Nano-columns by a femtosecond laser with various wavelengths and process parameters, whilst the specimen was submerged in water. The experiments were carried out by three types of wavelengths i.e. 1030 nm, 515nm, 343nm, with 500 fs laser pulses. The scales of these spikes are much smaller than micro spikes that are constructed by laser irradiation of silicon surface in vacuum or gases like SF6, Cl2. The Si nano-columns of 300 nm or less in width were characterized by SEM measurements. The formation of these Si Nano-columns that were revealed by SEM observation, indicates chemical etching with laser ablation occurred when surface exposed by laser beam. We observed 200 nm spikes height at the center of laser beam profile and the ones uniform in height at lateral incident area.

scholarly journals Highly refractive index sensitive femtosecond laser inscribed long period gratings

2011 ◽  
Author(s):  
Edward Davies ◽  
Kyriacos Kalli ◽  
Charalambos Koutsides ◽  
Lin Zhang
Keyword(s):  
Refractive Index ◽  
Femtosecond Laser ◽  
Long Period ◽  
Long Period Gratings
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