Patent
Apparatus for continuous readout of fabry-perot fiber optic sensor
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TLDR
In this paper, the authors propose an apparatus to interrogate one or more fiber optic sensors to make high-resolution measurements at long distances between the sensor and the interrogator apparatus.Abstract:
An apparatus to interrogate one or more fiber optic sensors to make high-resolution measurements at long distances between the sensor and the interrogator apparatus. The apparatus comprises a tunable light source, an optical switch for pulsing the light source, at least one sensor (e.g., a Fabry-Perot sensor) for reflecting the laser light, a fiber optic cable interconnecting the sensor with the light source, a coupler for directing the reflected light from the sensor to a detector in order to generate a digital output, and a control logic for tuning the laser light source based on the digital output from the detector. Use of a fiber Bragg grating temperature sensor is also contemplated.read more
Citations
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References
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Patent
Electrically tunable optical filter utilizing a deformable multi-layer mirror
TL;DR: An electrically tunable optical filter utilizing a deformable multi-layer mirror construction was proposed in this article, where the optical filter was constructed by using a deformation-free deformable multilayer mirror.
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Method and apparatus for waveguide optics and devices
Mark P. Bendett,Michael A. Mccoy +1 more
TL;DR: In this paper, a waveguide is defined within a glass substrate doped with a rare-earth element or elements by ion diffusion and feedback elements such as mirrors or reflection gratings in the waveguide further define a laser-resonator cavity so that laser light is output from the waveguides when pumped optically or otherwise.
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