Sensitivity of slanted fibre Bragg gratings to external refractive index higher than that of silica

2001 ◽  
Vol 37 (5) ◽  
pp. 289 ◽  
Author(s):  
G. Laffont ◽  
P. Ferdinand
Keyword(s):  
Refractive Index ◽  
Bragg Gratings ◽  
Fibre Bragg Gratings

Experimental and numerical study on refractive index sensors based on fibre Bragg gratings inscribed in multimode fibre

2018 ◽  
Vol 29 (2) ◽  
pp. 025102 ◽  
Author(s):  
Jean Filipe Kuhne ◽  
Ana Maria Rocha ◽  
Valmir de Oliveira ◽  
Hypolito José Kalinowski ◽  
Ricardo Canute Kamikawachi
Keyword(s):  
Refractive Index ◽  
Numerical Study ◽  
Bragg Gratings ◽  
Refractive Index Sensors ◽  
Fibre Bragg Gratings

scholarly journals Laser nano-filament explosion for enabling open-grating sensing in optical fibre

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Keivan Mahmoud Aghdami ◽  
Abdullah Rahnama ◽  
Erden Ertorer ◽  
Peter R. Herman
Keyword(s):  
Refractive Index ◽  
Optical Fibre ◽  
Chemical Etching ◽  
Pulsed Laser ◽  
Bragg Gratings ◽  
High Refractive Index ◽  
Refractive Index Sensing ◽  
Index Contrast ◽  
Fibre Bragg Gratings ◽  
Processing Steps

AbstractEmbedding strong photonic stopbands into traditional optical fibre that can directly access and sense the outside environment is challenging, relying on tedious nano-processing steps that result in fragile thinned fibre. Ultrashort-pulsed laser filaments have recently provided a non-contact means of opening high-aspect ratio nano-holes inside of bulk transparent glasses. This method has been extended here to optical fibre, resulting in high density arrays of laser filamented holes penetrating transversely through the silica cladding and guiding core to provide high refractive index contrast Bragg gratings in the telecommunication band. The point‐by‐point fabrication was combined with post-chemical etching to engineer strong photonic stopbands directly inside of the compact and flexible fibre. Fibre Bragg gratings with sharply resolved π-shifts are presented for high resolution refractive index sensing from $${n}_{{{{{{\rm{H}}}}}}}$$ n H  = 1 to 1.67 as the nano-holes were readily wetted and filled with various solvents and oils through an intact fibre cladding.

Reflections near 1030nm from 1540nm fibre Bragg gratings: Evidence of a complex refractive index structure

2005 ◽  
Vol 256 (4-6) ◽  
pp. 310-318 ◽  
Author(s):  
C.M. Rollinson ◽  
S.A. Wade ◽  
N.M. Dragomir ◽  
G.W. Baxter ◽  
S.F. Collins ◽  
...  
Keyword(s):  
Refractive Index ◽  
Complex Refractive Index ◽  
Bragg Gratings ◽  
Index Structure ◽  
Fibre Bragg Gratings

Fibre Bragg Gratings in Harsh and Space Environments: Principles and applications

2019 ◽  
Author(s):  
Brahim Aissa ◽  
Emile I. Haddad ◽  
Roman V. Kruzelecky ◽  
Wes R. Jamroz
Keyword(s):  
Bragg Gratings ◽  
Space Environments ◽  
Fibre Bragg Gratings

Frequency locking using cascaded fibre Bragg gratings in OFDM systems

1996 ◽  
Vol 32 (12) ◽  
pp. 1120 ◽  
Author(s):  
C.S. Park ◽  
G.Y. Lyu ◽  
D.H. Lee
Keyword(s):  
Bragg Gratings ◽  
Ofdm Systems ◽  
Frequency Locking ◽  
Fibre Bragg Gratings

Dispersion compensating, reconfigurable optical add drop multiplexer using chirped fibre Bragg gratings

1997 ◽  
Vol 33 (17) ◽  
pp. 1474 ◽  
Author(s):  
A.D. Ellis ◽  
R. Kashyap ◽  
I. Crisp ◽  
D.J. Malyon
Keyword(s):  
Bragg Gratings ◽  
Fibre Bragg Gratings
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