| 简介 |
Use : pour on fiber-optic self-excited generator devices on the basis of fiber lasers with the micro-resonator mirrors for measuring the magnetic. The essence of the solution proposed consists of the following. Is proposed the new the schematic of the construction of the multichannel fiber-optic sensor of magnetic pour on, allowing the continuous and simultaneous operation N of the independent measuring channels. The simultaneous excitation N of the independent fiber-optic lasers is accomplished by one semiconductor laser of pumping with the aid of the multimode of 2N fiber fan-outs. In this case is proposed the use of active light guides, alloyed by rare-earth elements , which specifies the possibility of designing of highly effective erbium fiber lasers ([EVL]) with the small length of fiber resonator, to l≤0, 1 m. furthermore, the contemporary technology of micromechanics makes it possible to create silicic micros-resonator with the high efficiency of the excitation of fluctuations and the natural frequencies of basic mode of vibration, by exceeding 100 MHz. 1 illus. |
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