One somatotype optical mojiyureta which possesses the high gain bandwidth product

摘要

(57) Abstract This invention regards one somatotype optical mojiyuretadebaisu (1) and its production manner. It is desirable, the lithium niobate substrate (2) light energy has the wave guide (52) which in order to be spread is produced in those in Mach Zhender architecture, and the median electrode (51) exists in center of these wave guides. In addition as for this wave guide, like the copper and the silver is, electrode metarizeshiyon (metallization) which (50) low electrical resistivity is approached with to be formed boundary, the device which possesses the high gain bandwidth product is offered, as a result, cost of Drive electronics is decreased, procedure is simplified. In addition, this mojiyuretadebaisu has, buffer coat (55), two silicon oxides, desirably. The gain bandwidth product exceeds 4.5 105. With impedance (54) the terminal it does this wave guide, because of best RF performance, and, this RF driver (56) is jointed to the electrode.