A silicon integrated photonic sensor using Bragg gratings and signal post-processing

2021 ◽  
Author(s):  
Roberto R. Peyton ◽  
Jeffry Martinez ◽  
Fabián A. Videla ◽  
Gustavo A. Torchia
Keyword(s):  
Bragg Gratings ◽  
Post Processing ◽  
Photonic Sensor

Femtosecond laser post-processing mechanisms for refractive index tuning of fiber Bragg gratings

2021 ◽  
Author(s):  
Timothy O. Imogore ◽  
Thorsten A. Goebel ◽  
Ria G. Krämer ◽  
Christian Matzdorf ◽  
Daniel Richter ◽  
...  
Keyword(s):  
Refractive Index ◽  
Femtosecond Laser ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Post Processing ◽  
Processing Mechanisms

Dispersion tailoring of femtosecond laser written chirped fiber Bragg gratings by selective femtosecond laser post-processing

2020 ◽  
Vol 45 (23) ◽  
pp. 6526
Author(s):  
Timothy O. Imogore ◽  
Ria G. Krämer ◽  
Thorsten A. Goebel ◽  
Christian Matzdorf ◽  
Daniel Richter ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Post Processing ◽  
Chirped Fiber Bragg Gratings

scholarly journals A concept of microwave photonic sensor systems based on addressed fiber Bragg gratings

2020 ◽  
Vol 1499 ◽  
pp. 012038
Author(s):  
A Zh Sakhabutdinov ◽  
O G Morozov ◽  
G A Morozov ◽  
R Sh Misbakhov ◽  
A A Kuznetsov ◽  
...  
Keyword(s):  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Sensor Systems ◽  
Photonic Sensor ◽  
Microwave Photonic

scholarly journals Refractive Index Measurement of Lithium Ion Battery Electrolyte with Etched Surface Cladding Waveguide Bragg Gratings and Cell Electrode State Monitoring by Optical Strain Sensors

Batteries ◽  
2019 ◽  
Vol 5 (1) ◽  
pp. 30 ◽  
Author(s):  
Antonio Nedjalkov ◽  
Jan Meyer ◽  
Alexander Gräfenstein ◽  
Benjamin Schramm ◽  
Martin Angelmahr ◽  
...  
Keyword(s):  
Refractive Index ◽  
Optical Glass ◽  
Early Stage ◽  
Glass Fibers ◽  
Surrounding Medium ◽  
Research Work ◽  
Lithium Ion ◽  
Bragg Gratings ◽  
Clear Correlation ◽  
Photonic Sensor

In this scientific publication, a new sensor approach for status monitoring, such as state of charge and state of health, of lithium ion batteries by using special Bragg gratings inscribed into standard optical glass fibers is presented. In addition to well-known core gratings, embedded into the anode of 5 Ah lithium ion pouch cells as a strain monitoring unit, the manufacturing of a surface cladding waveguide Bragg grating sensor incorporated into the cell’s separator, that is sensitive to changes of the refractive index of the surrounding medium, is demonstrated. On the basis of the experiments carried out, characteristics of the cell behavior during standard cyclization and recognizable marks in subsequent post-mortem analyses of the cell components are shown. No negative influence on the cell performance due to the integrated sensors have been observed; however, the results show a clear correlation between fading cell capacity and changes of the interior optical signals. Additionally, with the novel photonic sensor, variations in the electrolyte characteristics are determinable as the refractive index of the solution changes at different molar compositions. Furthermore, with the manufactured battery cells, abuse tests by overcharging were conducted, and it was thereby demonstrated how internal battery sensors can derive additional information beyond conventional battery management systems to feasibly prevent catastrophic cell failures. The result of the research work is an early stage photonic sensor that combines chemical, mechanical and thermal information from inside the cell for an enhanced battery status analysis.

Study of femtosecond laser post-processing regimes for dispersion tailoring of fiber Bragg gratings

2021 ◽  
Author(s):  
Timothy O. Imogore ◽  
Ria G. Kramer ◽  
Thorsten A. Goebel ◽  
Christian Matzdorf ◽  
Daniel Richter ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Post Processing ◽  
Processing Regimes

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

APPLYING THE ISF TECHNOLOGY TO PRODUCE THE CAR PART MODELS

2010 ◽  
Vol 13 (4) ◽  
pp. 91-98
Author(s):  
Tuan Dinh Phan ◽  
Binh Thien Nguyen ◽  
Dien Khanh Le ◽  
Phuong Hoang Pham
Keyword(s):  
Rapid Prototyping ◽  
Incremental Sheet Forming ◽  
Cad Model ◽  
Post Processing ◽  
Technological Parameters ◽  
Batch Production ◽  
Complex Products ◽  
3D Cad ◽  
Real Size ◽  
Single Batch

The paper presents an application the research results previously done by group on the influence of technological parameters to the deformation angle and finish surface quality in order to choose technology parameters for the incremental sheet forming (ISF) process to produce products for the purpose of rapid prototyping or single-batch production, including all steps from design and process 3D CAD model, calculate and select the technological parameters, setting up manufacturing and the stage of post-processing. The samples formed successfully showed high applicability of this technology to practical work, the complex products with the real size can be produced in industries: automotive, motorcycle, civil...

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