| 摘要 |
<p>The invention relates to fiberoptics. The invention is directed at widening the functional capacities of a filter by augmenting a length of an acousto-optical interaction on uniform acousto-optical structure and uniformity region of elastic vibrations. The inventive device comprises a cut of optical fiber and a radiator and an elastic vibration absorber rigidly connected thereto. The invention is characterized by the introduction into the device of a thin cylindrical shell used for spinning (completely or partially) optical fibers. In addition, the shell is fitted with at least one open slit parallel to the axis thereof. On the opposite sides of the slit, the radiator and the absorber are mounted along the length of the hole slit in a way making it possible to embrace the optical fibers. The inventive device provides a reflection factor R in the order of 0.3 within a filtration bandwidth ranging from 1 to 10 kHz.</p> |
