Optical waveguides – Optical waveguide sensor
Patent
1995-09-01
1996-11-05
Ullah, Akm E.
Optical waveguides
Optical waveguide sensor
G02B 600
Patent
active
055726097
ABSTRACT:
The invention herein provides a method and apparatus for fabricating optical fiber vibration modal filtering sensors. Such filtering sensors are used in vibration control of engineered structures, especially flexible structures. In particular, the optical fiber sensor is made by a functionally weighted exposure of an optical fiber to ultra-violet (UV) laser source thereby modifying the refractive index of the optical fiber core resulting in a vibrational modal filtering sensor using a single mode interferometric detection scheme. The apparatus for making the same uses a multiple reel stepper motor mechanism, a process controller and a UV laser source.
REFERENCES:
patent: 5208877 (1993-05-01), Murphy et al.
patent: 5224182 (1993-06-01), Murphy et al.
patent: 5384884 (1995-01-01), Kashyap et al.
Hill et al. "Photo-sensitivity in optical fiber" Annu. Rev. Mater. Sci. 125 (1993) pp. 125-57.
Atkins et al., "Photolytic Index Changes in Optical Fibers," Ann. Rev. Mater. Sci. (1993) pp. 381-407.
Malo et al., "Effective index drift from molecular hydrogen diffusion in hydrogen-loaded optical fibres and its effect on Bragg Grating fabrication" Elect. Ltrs. (1994) pp. 442-443.
Li Yaowen
Sirkis James S.
Sears Christopher N.
Ullah Akm E.
University of Maryland
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