翻訳と辞書 Words near each other ・ Optical pulsar ・ Optical pumping ・ Optical Race ・ Optical radiation ・ Optical reader ・ Optical recording ・ Optical rectification ・ Optical relief ・ Optical resolution ・ Optical Review ・ Optical RFID ・ Optical 88 ・ Optical aberration ・ Optical add-drop multiplexer ・ Optical Allusions ・ Optical amplifier ・ Optical answer sheet ・ Optical attached cable ・ Optical attenuator ・ Optical audio disc ・ Optical autocorrelation ・ Optical axis ・ Optical axis grating ・ Optical beam smoke detector ・ Optical beam-induced current ・ Optical bistability ・ Optical black hole ・ Optical bonding ・ Optical braille recognition ・ Optical brightener Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Optical amplifier ： ウィキペディア英語版 Optical amplifier An optical amplifier is a device that amplifies an optical signal directly, without the need to first convert it to an electrical signal. An optical amplifier may be thought of as a laser without an optical cavity, or one in which feedback from the cavity is suppressed. Optical amplifiers are important in optical communication and laser physics. There are several different physical mechanisms that can be used to amplify a light signal, which correspond to the major types of optical amplifiers. In doped fibre amplifiers and bulk lasers, stimulated emission in the amplifier's gain medium causes amplification of incoming light. In semiconductor optical amplifiers (SOAs), electron-hole recombination occurs. In Raman amplifiers, Raman scattering of incoming light with phonons in the lattice of the gain medium produces photons coherent with the incoming photons. Parametric amplifiers use parametric amplification. ==Laser amplifiers== Almost any laser active gain medium can be pumped to produce gain for light at the wavelength of a laser made with the same material as its gain medium. Such amplifiers are commonly used to produce high power laser systems. Special types such as regenerative amplifiers and chirped-pulse amplifiers are used to amplify ultrashort pulses. 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 amplifier」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.