MEMS accelerometers utilizing resonant microcantilevers with interrogated single-mode waveguides and Bragg gratings

2013 ◽  
Author(s):  
L. G. Carpenter ◽  
C. Holmes ◽  
J. C. Gates ◽  
P. G. R. Smith
Keyword(s):  
Single Mode ◽  
Bragg Gratings ◽  
Mems Accelerometers

scholarly journals Electrically Tunable Bragg Gratings in Single Mode Polymer Optical Fiber

2006 ◽  
Author(s):  
Kyriacos Kalli ◽  
Helen L. Dobb ◽  
David J. Webb ◽  
Michael Komodromos ◽  
Christos Themistos ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Single Mode ◽  
Bragg Gratings ◽  
Polymer Optical Fiber

Multiwavelength erbium-doped fiber lasers with tilted Bragg gratings in single mode fibers

2007 ◽  
Author(s):  
Long Jin ◽  
Bo Liu ◽  
Lingling Xu ◽  
Jian Zhang ◽  
Yange Liu ◽  
...  
Keyword(s):  
Fiber Lasers ◽  
Single Mode ◽  
Bragg Gratings ◽  
Erbium Doped

scholarly journals Sapphire-Derived Fiber Bragg Gratings for High Temperature Sensing

Crystals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 946
Author(s):  
Qi Guo ◽  
Zhixu Jia ◽  
Xuepeng Pan ◽  
Shanren Liu ◽  
Zhennan Tian ◽  
...  
Keyword(s):  
Refractive Index ◽  
High Temperature ◽  
Spectral Characteristics ◽  
Fiber Bragg Gratings ◽  
Single Mode ◽  
Bragg Gratings ◽  
Temperature Sensing ◽  
Direct Writing ◽  
Core Diameter ◽  
Application Range

In this paper, a sapphire-derived fiber (SDF) with a core diameter of 10 μm and a cladding diameter of 125 μm is fabricated by the melt-in-tube method, and fiber Bragg gratings (FBGs) with reflectivity over 80% are prepared by the femtosecond laser point-by-point direct writing method. By analyzing the refractive index distribution and reflection spectral characteristics of the SDF, it can be seen that the SDF is a graded refractive index few-mode fiber. In order to study the element composition of the SDF core, the end-face element distribution of the SDF is analyzed, which indicates that element diffusion occurred between the core and the cladding materials. The temperature and stress of the SDF gratings are measured and the highest temperature is tested to 1000 °C. The temperature and strain sensitivities are 15.64 pm/°C and 1.33 pm/με, respectively, which are higher than the temperature sensitivity of the quartz single-mode fiber. As a kind of special fiber, the SDF expands the application range of sapphire fiber, and has important applications in the fields of high-temperature sensing and high-power lasers.

scholarly journals Filament-arrayed Bragg Gratings for azimuthally resolved displacement sensing in single-mode fiber

2022 ◽  
Author(s):  
Abdullah Rahnama ◽  
Hossein Mahlooji ◽  
GLIGOR DJOGO ◽  
Fae Azhari ◽  
Peter Herman
Keyword(s):  
Single Mode ◽  
Bragg Gratings ◽  
Single Mode Fiber
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