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US 2016/0238392 A1Published application
Ring laser sensor
AssigneeShenzhen University
InventorsQiao WEN, Guowen LIANG, Ji LI, Hanben NIU
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AssigneeShenzhen University
InventorsQiao WEN, Guowen LIANG, Ji LI, Hanben NIU
Estimating the term…
The present invention is suitable for the technical field of sensing, and provides a ring laser sensor comprising a pump source, a common section, and a reference section and a detection section, the common section is provided with a gain medium, the common section and the reference section form a first ring laser resonator, and the common section and the detection section form a second ring laser resonator, lasers are transmitted oppositely in the first ring laser resonator and the second ring laser resonator, the detection section is provided with a sensing element capable of causing an optical path difference; the common section is provided with an output unit or each of the reference section and the detection is provided with the output unit, the output unit is connected to a photoelectric detector through a light uniting unit. In the present invention, two ring laser resonators with opposite transmission directions is provided, the detection section is provided with the sensing element, and because the frequencies of the laser are sensitive to the changes of the optical paths in the resonators, the sensitivity and accuracy of the sensor are high, and the two resonators of the sensor have common optical path, such that the sensor has good anti jamming capacity and is suitable for measuring the small changes in a variety of physical quantities.
A ring laser sensor, wherein the ring laser sensor comprises a pump source, a common section, and a reference section and a detection section which are connected to the two ends of the common section in parallel, the common section is provided with a gain medium, the common section and the reference section form a first ring laser resonator, and the common section and the detection section form a second ring laser resonator, lasers are transmitted oppositely in the first ring laser resonator and the second ring laser resonator, the detection section is provided with a sensing element capable of causing an optical path difference;
Dependencies are inferred from the claim text.