Review of Brillouin-active fiber-based acousto-optic sensors

2002 ◽  
Author(s):  
Chung Yu ◽  
Yong K. Kim
Keyword(s):  
Active Fiber

scholarly journals Novel gas sensor combined active fiber loop ring-down and dual wavelengths differential absorption method

2014 ◽  
Vol 22 (9) ◽  
pp. 11244 ◽  
Author(s):  
Yanjie Zhao ◽  
Jun Chang ◽  
Jiasheng Ni ◽  
Qingpu Wang ◽  
Tongyu Liu ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Absorption Method ◽  
Differential Absorption ◽  
Active Fiber ◽  
Loop Ring ◽  
Differential Absorption Method ◽  
Fiber Loop

Active Fiber Bragg Grating Hydrogen Sensors for All-Temperature Operation

2007 ◽  
Vol 19 (5) ◽  
pp. 255-257 ◽  
Author(s):  
Michael Buric ◽  
Kevin P. Chen ◽  
Matrika Bhattarai ◽  
Philip R. Swinehart ◽  
Mokhtar Maklad
Keyword(s):  
Fiber Bragg Grating ◽  
Bragg Grating ◽  
Hydrogen Sensors ◽  
Active Fiber

scholarly journals Improved active fiber-based retroreflector with intensity stabilization and a polarization monitor for the near UV

2021 ◽  
Vol 29 (5) ◽  
pp. 7024
Author(s):  
Vitaly Wirthl ◽  
Lothar Maisenbacher ◽  
Johannes Weitenberg ◽  
Alexander Hertlein ◽  
Alexey Grinin ◽  
...  
Keyword(s):  
Active Fiber ◽  
Intensity Stabilization

scholarly journals Regularities of Signal and Sensitivity Variation of a Reflection Fiber Optopair Sensor Dependent on the Angle between Axes of Fiber Tips

2009 ◽  
Vol 14 (1) ◽  
pp. 41-49
Author(s):  
V. Kleiza ◽  
J. Verkelis
Keyword(s):  
Output Signal ◽  
Experimental Results ◽  
Sensor Head ◽  
Fiber Core ◽  
Active Fiber ◽  
Inflection Points ◽  
Maximal Sensitivity ◽  
Increased Sensitivity ◽  
Length Of Interval

Regularities of variation of output signal U of one reflection fiber optopair dependent on the distance h between active fiber tips and light reflecting body-mirror (U-h characteristics) and on the angle 2θ between the FAT axes, the distance between FAT being minimal (b = bmin), have been explored by modelling and experimentally. The parameters of U-h characteristics have been established: maximal sensitivity Smax(h), localization and values of maxima and inflection points (+,−) of a function U(h), length of interval ∆h in which the output signal U(h) is linear (98 % of sensitivity maxima), as well as dependences of these parameters on the angle θ and distance h. It has been shown that the experimental results are well described by the formulas improved by the authors previously. It has been demonstrated that reflection fiber optopair sensitivity Smax to displacement considerably increases with an increase of the angle θ. It has been defined that, with an increase of the angle θ up to 20°, sensitivity increases up to 30 times when active fiber tips axes are almost parallel and the diameter of the fiber core is 100 µm, and 125 µm with cladding. Apart from that, Smax increases almost exponentially up to θ = 20°. A drawback of such an RFP is that with an increase of the angle θ, the size of the sensor head also increases. However, due to their considerably increased sensitivity, they can be and are wide used.

Effect of active fiber birefringence on polarization properties of DBR all-fiber laser

Laser Physics ◽  
2012 ◽  
Vol 22 (4) ◽  
pp. 778-783 ◽  
Author(s):  
F. Yang ◽  
Z. Q. Pan ◽  
Q. Ye ◽  
D. J. Chen ◽  
H. W. Cai ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Active Fiber ◽  
Fiber Birefringence

Generation of high frequency trains of chirped soliton-like pulses in inhomogeneous and cascaded active fiber configurations

2018 ◽  
Vol 426 ◽  
pp. 333-340
Author(s):  
I.O. Zolotovskii ◽  
V.A. Lapin ◽  
D.I. Sementsov ◽  
A.A. Fotiadi ◽  
S.V. Popov
Keyword(s):  
High Frequency ◽  
Active Fiber
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