专利汇可以提供Waveguide type optical-acoustic spectrum analyzer专利检索,专利查询,专利分析的服务。并且PURPOSE:To reduce the leakage into a photodetector of a non-deflection light and to improve the dynamic range by converting a light beam which has been radiated to a plane optical waveguide, to collimated beam of light and thereafter, deflecting them in accordance with a frequency of an input signal. CONSTITUTION:An analyzer is constituted by containing a substrate 1, an optical waveguide 2 provided on the substrate 1, a light source 3 such as a semiconductor laser, etc., planar lenses 4, 6, an elastic surface wave electrode 5, a diffraction grating 9 and a photodetector array 7. In this state, a light beam which has been radiated from the light source 3 is propagated through the optical wave guide 2 and converted to collimated beam of lights by the lens 4. These collimated beam of lights are deflected by an elastic surface wave 8 corresponding to a frequency of a signal to be measured which has been applied between terminals of the electrode 5. The deflected collimated beam of lights 10 are further deflected by the diffraction grating 9, and thereafter, condensed by the lens 6 and condensed to a condensing point 14 of the array 7. On the other hand, collimated beam of lights 11 which are not deflected by the elastic surface wave 8 are scarcely deflected and transmit through and condensed to a condensing point 12. Since a distance between the condensing points 12, 14 becomes long, the non-deflection light scarcely leaks into the array 7.,下面是Waveguide type optical-acoustic spectrum analyzer专利的具体信息内容。
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