scholarly journals The spectral characteristics of femtosecond laser inscribed long period grating bend sensors written into a photonic crystal fibre

2008 ◽  
Author(s):  
T. Allsop ◽  
K. Kalli ◽  
K. Zhou ◽  
G. Smith ◽  
D. J. Webb ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Femtosecond Laser ◽  
Spectral Characteristics ◽  
Long Period Grating ◽  
Photonic Crystal Fibre ◽  
Long Period

Sensing Characteristics of Long-Period Grating Inscribed in Grapefruit Photonic Crystal Fiber by Femtosecond Laser

2014 ◽  
Vol 513-517 ◽  
pp. 4231-4234
Author(s):  
Yuan Wei ◽  
Yu Jie Du
Keyword(s):  
Refractive Index ◽  
Photonic Crystal ◽  
Femtosecond Laser ◽  
Photonic Crystal Fiber ◽  
Resonant Wavelength ◽  
Long Period Grating ◽  
Crystal Fiber ◽  
Long Period ◽  
Surrounding Refractive Index ◽  
Novel Method

A novel method for fabricating long period grating in grapefruit photonic crystal fiber (GPCF) is proposed and demonstrated. An 800nm femtosecond laser is adopted to scan a section of GPCF periodically point-by-point, resulting in effective refractive index periodic demodulation. High resonance of ~17dB is obtained with a grating length of 30 mm. The temperature sensitivity of resonant wavelength 0.03 nm/°C is obtained from 20°C to 120 °C. In addition, the relationship between resonant wavelength and surrounding refractive index (SRI), when LPFG immersed in refractive index of solution of different index, is also researched.

Long period gratings written into a photonic crystal fibre by a femtosecond laser as directional bend sensors

2008 ◽  
Vol 281 (20) ◽  
pp. 5092-5096 ◽  
Author(s):  
T. Allsop ◽  
K. Kalli ◽  
K. Zhou ◽  
Y. Lai ◽  
G. Smith ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Femtosecond Laser ◽  
Photonic Crystal Fibre ◽  
Long Period ◽  
Long Period Gratings

Polarisation properties of long-period grating inscribed in pure-fused-silica photonic crystal fibre

2006 ◽  
Vol 42 (23) ◽  
pp. 1339 ◽  
Author(s):  
C. Caucheteur ◽  
A.A. Fotiadi ◽  
P. Mégret ◽  
G. Brambilla ◽  
S.A. Slattery ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Fused Silica ◽  
Long Period Grating ◽  
Photonic Crystal Fibre ◽  
Long Period

scholarly journals Characterisation of femtosecond laser inscribed long period gratings in photonic crystal fibre

2008 ◽  
Author(s):  
Tom Allsop ◽  
Kyriacos Kalli ◽  
Kaiming Zhou ◽  
Graham Smith ◽  
Yicheng Lai ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Femtosecond Laser ◽  
Photonic Crystal Fibre ◽  
Long Period ◽  
Long Period Gratings
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