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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Optical transistor ： ウィキペディア英語版 Optical transistor An optical transistor is a device that switches or amplifies optical signals. Light incident on an optical transistor’s input changes the intensity of light emitted from the transistor’s output. Output power is supplied by an additional optical source. Since the input signal intensity may be weaker than that of the source, an optical transistor amplifies the optical signal. The device is the optical analog of the electronic transistor that forms the basis of modern electronic devices. Optical transistors provide a means to control light using only light and has applications in optical computing and fiber-optic communication networks. Such technology has the potential to exceed the speed of electronics, while consuming less power. Since photons inherently do not interact with each other, an optical transistor must employ an operating medium to mediate interactions. This is done without converting optical to electronic signals as an intermediate step. Implementations using a variety of operating mediums have been proposed and experimentally demonstrated. However, their ability to compete with modern electronics is currently limited. == Applications == Optical transistors could be used to improve the performance of fiber-optic communication networks. Although fiber-optic cables are used to transfer data, tasks such as signal routing are done electronically. This requires optical-electronic-optical conversion, which form bottlenecks. In principle, all-optical digital signal processing and routing is achievable using optical transistors arranged into photonic integrated circuits. The same devices could be used to create new types of optical amplifiers to compensate for signal attenuation along transmission lines. A more elaborate application of optical transistors is the development of an optical digital computer in which components process photons rather than electrons. Further, optical transistors that operate using single photons could form an integral part of quantum information processing where they can be used to selectively address individual units of quantum information, known as qubits. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Optical transistor」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.