| 单词 | optical amplifier |
| 释义 | > as lemmasoptical amplifier optical amplifier n. a device that amplifies an optical beam or signal; esp. one that amplifies an optical signal without converting it to an electronic signal at any stage. ΚΠ 1952 Philos. Trans. (Royal Soc.) A. 244 219 The optical-lever amplifier developed for this investigation is described elsewhere.] 1963 Microwave Res. Inst. Symp. Ser. 13 131 This paper presents the salient facts on noise in optical amplifiers of coherent signals. 1995 Sci. Amer. Sept. 57/1 The optical amplifier..allows the power of a signal to be restored to its original strength without the usual optical-to-electronic conversion. < as lemmas |
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