Apodised fibre Bragg gratings fabricated with uniform phase mask using low cost apparatus

2000 ◽  
Vol 36 (7) ◽  
pp. 655 ◽  
Author(s):  
Chingchung Yang ◽  
Yinchieh Lai
Keyword(s):  
Low Cost ◽  
Bragg Gratings ◽  
Phase Mask ◽  
Fibre Bragg Gratings

Fibre Bragg gratings in the visible: towards low-cost detection

2018 ◽  
Author(s):  
Hypolito J. Kalinowski ◽  
Greter Capote Mastrapa ◽  
Gabriel G. Guimarães ◽  
Patrícia L. Inácio ◽  
Valmir Oliveira
Keyword(s):  
Low Cost ◽  
Bragg Gratings ◽  
Fibre Bragg Gratings

scholarly journals Multipurpose Polymer Bragg Grating-Based Optomechanical Sensor Pad

Sensors ◽  
2019 ◽  
Vol 19 (19) ◽  
pp. 4101
Author(s):  
Steffen Hessler ◽  
Patrick Bott ◽  
Stefan Kefer ◽  
Bernhard Schmauss ◽  
Ralf Hellmann
Keyword(s):  
Low Cost ◽  
Bragg Gratings ◽  
Phase Mask ◽  
Refractive Indices ◽  
Optical Pickup ◽  
Acoustic Instruments ◽  
Low Modulus ◽  
Channel Waveguides ◽  
Krf Excimer Laser ◽  
Sensor Monitoring

Flexible epoxy waveguide Bragg gratings are fabricated on a low-modulus TPX™ polymethylpentene polyolefin substrate for an easy to manufacture and low-cost optomechanical sensor pad providing exceedingly multipurpose application potentials. Rectangular EpoCore negative resist strip waveguides are formed employing standard UV mask lithography. Highly persistent Bragg gratings are inscribed directly into the channel waveguides by permanently modifying the local refractive indices through a well-defined KrF excimer laser irradiated +1/-1 order phase mask. The reproducible and vastly versatile sensing capabilities of this easy-to-apply optomechanical sensor pad are demonstrated in the form of an optical pickup for acoustic instruments, a broadband optical accelerometer, and a biomedical vital sign sensor monitoring both respiration and pulse at the same time.

Apodisation of the spectral response of fibre Bragg gratings using a phase mask with variable diffraction efficiency

1995 ◽  
Vol 31 (3) ◽  
pp. 222-223 ◽  
Author(s):  
J. Albert ◽  
L.E. Erickson ◽  
D.C. Johnson ◽  
B. Malo ◽  
K.O. Hill ◽  
...  
Keyword(s):  
Diffraction Efficiency ◽  
Spectral Response ◽  
Bragg Gratings ◽  
Phase Mask ◽  
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
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