Study of the fabrication process of Bragg gratings in channel waveguides using ultrafast radiation and the phase mask method

2007 ◽  
Author(s):  
Dan Grobnic ◽  
Stephen J. Mihailov ◽  
Christopher W. Smelser
Keyword(s):  
Bragg Gratings ◽  
Fabrication Process ◽  
Phase Mask ◽  
Channel Waveguides

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.

Bragg Gratings Written in All->tex<$rm SiO_2$>/tex<and Ge-Doped Core Fibers With 800-nm Femtosecond Radiation and a Phase Mask

2004 ◽  
Vol 22 (1) ◽  
pp. 94-100 ◽  
Author(s):  
S.J. Mihailov ◽  
C.W. Smelser ◽  
D. Grobnic ◽  
R.B. Walker ◽  
P. Lu ◽  
...  
Keyword(s):  
Bragg Gratings ◽  
Phase Mask ◽  
Femtosecond Radiation

scholarly journals Femtosecond inscription of semi-aperiodic multi-notch fiber Bragg gratings using a phase mask

2020 ◽  
Vol 28 (24) ◽  
pp. 35682
Author(s):  
T. A. Goebel ◽  
M. Heusinger ◽  
R. G. Krämer ◽  
C. Matzdorf ◽  
T. O. Imogore ◽  
...  
Keyword(s):  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Phase Mask

Fabrication and Characterisation of Reverse Proton Exchange Optical Waveguides in Neodymium Doped Lithium Niobate Crystals

2005 ◽  
Vol 480-481 ◽  
pp. 429-436
Author(s):  
M. Domenech ◽  
G. Lifante ◽  
F. Cussó ◽  
A. Parisi ◽  
A.C. Cino ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Optical Waveguides ◽  
Spectroscopic Properties ◽  
Proton Exchange ◽  
Fabrication Process ◽  
The Other ◽  
Ion Plating ◽  
Other Hand ◽  
Channel Waveguides ◽  
Lithium Niobate Crystals

In this work, the complete fabrication process which combines Proton Exchange (PE) and Reverse Proton Exchange (RPE) in Neodymium doped LiNbO3 channel waveguides is reported. To produce the PE-RPE channel waveguides the fabrication of dielectric SiO2 masks had to be implemented. For this propose, we adopted a technique based on the Ion Plating Plasma Assisted Deposition of SiO2 followed by the standard ultraviolet photolithographic patterning. On the other hand, we determined the main optical and spectroscopic properties of Nd3+ ions in the channel waveguides including the study of the lifetime as function as the polarisation.

scholarly journals Novel fabrication technique for phase-shifted fiber Bragg gratings using a variable-velocity scanning beam and a shielded phase mask

2018 ◽  
Vol 26 (10) ◽  
pp. 13311 ◽  
Author(s):  
Jiangtao Zhou ◽  
Kuikui Guo ◽  
Jun He ◽  
Maoxiang Hou ◽  
Zhe Zhang ◽  
...  
Keyword(s):  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Phase Mask ◽  
Variable Velocity ◽  
Fabrication Technique ◽  
Scanning Beam
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