Advancements in sapphire optical fibers for the delivery of erbium laser energy and IR sensor applications

1996 ◽  
Author(s):  
Adrian P. Pryshlak ◽  
Jeffrey R. Dugan ◽  
Jeremiah J. Fitzgibbon
Keyword(s):  
Optical Fibers ◽  
Laser Energy ◽  
Erbium Laser ◽  
Sensor Applications ◽  
Ir Sensor

Development of large area nanostructured antireflection coatings for EO/IR sensor applications

2015 ◽  
Author(s):  
Ashok K. Sood ◽  
Gopal Pethuraja ◽  
Roger E. Welser ◽  
Yash R. Puri ◽  
Nibir K. Dhar ◽  
...  
Keyword(s):  
Antireflection Coatings ◽  
Large Area ◽  
Sensor Applications ◽  
Ir Sensor

Characterization and sensor applications of polycarbonate optical fibers

1993 ◽  
Vol 12 (3) ◽  
pp. 257-268 ◽  
Author(s):  
H. Guerrero ◽  
J. Zoido ◽  
J. L. Escudero ◽  
E. Bernabeu
Keyword(s):  
Optical Fibers ◽  
Sensor Applications

A novel image-guided FT-IR sensor using chalcogenide glass optical fibers for the detection of combustion gases

2015 ◽  
Vol 220 ◽  
pp. 414-419 ◽  
Author(s):  
Xiaobing Dai ◽  
Xiangyan Liu ◽  
Li Liu ◽  
Bin Zhu ◽  
Zheng Fang
Keyword(s):  
Chalcogenide Glass ◽  
Optical Fibers ◽  
Combustion Gases ◽  
Image Guided ◽  
Ir Sensor ◽  
Ft Ir

Bragg gratings in carbon coated optical fibers and their potential sensor applications in harsh environment

2014 ◽  
Author(s):  
Yaowen Li ◽  
David J. Kudelko ◽  
Adam S. Hokansson ◽  
Debra A. Simoff ◽  
Andrei A. Stolov ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Bragg Gratings ◽  
Harsh Environment ◽  
Sensor Applications ◽  
Carbon Coated

scholarly journals Polymer Fibers Covered by Soft Multilayered Films for Sensing Applications in Composite Materials

Sensors ◽  
2019 ◽  
Vol 19 (18) ◽  
pp. 4052 ◽  
Author(s):  
Dorian Nikoniuk ◽  
Karolina Bednarska ◽  
Maksymilian Sienkiewicz ◽  
Grzegorz Krzesiński ◽  
Mateusz Olszyna ◽  
...  
Keyword(s):  
Composite Material ◽  
Composite Materials ◽  
Optical Fibers ◽  
Temperature Sensitivity ◽  
Polymer Coating ◽  
Layer By Layer ◽  
Sensor Applications ◽  
Sensing Applications ◽  
Polymer Optical Fibers ◽  
Soft Polymer

This paper presents the possibility of applying a soft polymer coating by means of a layer-by-layer (LbL) technique to highly birefringent polymer optical fibers designed for laminating in composite materials. In contrast to optical fibers made of pure silica glass, polymer optical fibers are manufactured without a soft polymer coating. In typical sensor applications, the absence of a buffer coating is an advantage. However, highly birefringent polymer optical fibers laminated in a composite material are much more sensitive to temperature changes than polymer optical fibers in a free space as a result of the thermal expansion of the composite material. To prevent this, we have covered highly birefringent polymer optical fibers with a soft polymer coating of different thickness and measured the temperature sensitivity of each solution. The results obtained show that the undesired temperature sensitivity of the laminated optical fiber decreases as the thickness of the coating layer increases.

Development of nanostructure based antireflection coatings for EO/IR sensor applications

2012 ◽  
Author(s):  
Ashok K. Sood ◽  
Roger E. Welser ◽  
Adam W. Sood ◽  
Yash R. Puri ◽  
David Poxson ◽  
...  
Keyword(s):  
Antireflection Coatings ◽  
Sensor Applications ◽  
Ir Sensor

scholarly journals Yb,Er:glass Microlaser at 1.5 µm for optical fiber sensing: development, characterization and noise reduction

ACTA IMEKO ◽  
2016 ◽  
Vol 5 (4) ◽  
pp. 24 ◽  
Author(s):  
Alexey Pniov ◽  
Andrey Zhirnov ◽  
Dmitriy Shelestov ◽  
Konstantin Stepanov ◽  
Evgeny Nesterov ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Relaxation Oscillation ◽  
Time Domain Reflectometry ◽  
Single Frequency ◽  
Peak Reduction ◽  
Erbium Laser ◽  
Optical Time Domain Reflectometry ◽  
Optical Fiber Sensing ◽  
Efficient Coupling ◽  
Optical Time

A fiber-pumped single-frequency microchip erbium laser was developed and characterized with the aim of using it in coherent Optical Time Domain Reflectometry (OTDR) measurements and sensing. The laser is pumped by a fiber-coupled 976 nm laser diode and provides 8 mW TEM00 single frequency output power at 1.54 µm wavelength, suitable for efficient coupling to optical fibers. The amplitude and phase noise of this 200 THz oscillator were experimentally investigated and a Relative Intensity Noise (RIN) control loop was developed providing 27 dB RIN peak reduction at the relaxation oscillation frequency of 800 kHz

scholarly journals Effect of Temperature Variations on Strain Response of Polymer Bragg Grating Optical Fibers

2017 ◽  
Vol 13 (1) ◽  
pp. 53-58 ◽  
Author(s):  
Hisham Hisham
Keyword(s):  
Optical Fiber ◽  
Optical Fibers ◽  
Bragg Gratings ◽  
Effect Of Temperature ◽  
Strain Response ◽  
Polymer Optical Fiber ◽  
Bragg Wavelength ◽  
Temperature Variations ◽  
Sensor Applications ◽  
Silica Optical Fiber

This paper presents a numerical analysis for the effect of temperature variations on the strain response of polymer optical fiber (POF) Bragg gratings. Results show that the dependence of the Bragg wavelength (λB) upon strain and temperature variations for the POF Bragg gratings is lies within the range of 0.462 – 0.470 fm με-1 °C-1 compare with 0.14 – 0.15 fm με-1 °C-1 for the SOFs Bragg gratings. Also, results show that the strain response for the POF Bragg gratings changed on average by 1.034 ± 0.02fm με- 1°C-1 and on average by 0.36 ± 0.03fm με-1°C-1 for the silica optical fiber (SOF) Bragg gratings. The obtained results are very important for strain sensor applications especially in the environments where the temperature change.

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