Utlra-Thermostable Long-Period Gratings Written in Nitrogen-Doped Silica Fibers

1998 ◽  
Vol 531 ◽  
Author(s):  
V. I. Karpov ◽  
M. V. Grekov ◽  
E. M. Dianov ◽  
K. M. Golant ◽  
R. R. Khrapko
Keyword(s):  
Refractive Index ◽  
Optical Fibers ◽  
Effective Refractive Index ◽  
Nitrogen Doped ◽  
Fiber Core ◽  
Long Period ◽  
Silica Fibers ◽  
Long Period Gratings ◽  
Silica Core

AbstractLong-period gratings were written in nitrogen-doped-silica-core optical fibers by point heating. The periodic variations of the effective refractive index were induced via diffusion of nitrogen from the fiber core. It is shown experimentally that such gratings remain functional at temperatures of up to 1200 °C.

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

3D printed long period gratings for optical fibers

2016 ◽  
Vol 41 (8) ◽  
pp. 1865 ◽  
Author(s):  
Victor Lambin Iezzi ◽  
Jean-Sébastien Boisvert ◽  
Sébastien Loranger ◽  
Raman Kashyap
Keyword(s):  
Optical Fibers ◽  
Long Period ◽  
Long Period Gratings ◽  
3D Printed

scholarly journals Improved Refractive Index Sensitivity Utilizing Long-Period Gratings with Periodic Corrugations on Cladding

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Anthony Lim ◽  
Wen Bin Ji ◽  
Swee Chuan Tjin
Keyword(s):  
Refractive Index ◽  
Cost Effective ◽  
Experimental Results ◽  
Refractive Index Sensitivity ◽  
Long Period ◽  
Specimen Collection ◽  
Long Period Gratings ◽  
Highly Sensitive ◽  
Index Sensitivity

A new structure of Long-Period Gratings (LPGs) sensor is introduced as a sensitive ambient RI sensor. This structure consists of creating periodic corrugations on the cladding of the LPG. The experimental results show that this LPG structure has good performances in terms of linearity and sensitivity and serves as a highly sensitive and cost-effective sensor. It also has the advantage of portability as the corrugation can also serve as the reservoir for the specimen collection to be tested.

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