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1. 发明授权

US07139117B2 Optical transmission apparatus 有权
标题翻译：光传输装置
公开(公告)号：US07139117B2
公开(公告)日：2006-11-21
申请号：US10793099
申请日：2004-03-05
申请人： Eisuke Nakamura , Makoto Murakami , Kiyotoshi Noheji
发明人： Eisuke Nakamura , Makoto Murakami , Kiyotoshi Noheji
IPC分类号： H01S4/00 , H04B10/12
CPC分类号： H04B10/2942 , H04B10/2916
摘要： An optical transmission apparatus that improves optical transmission quality by performing an optical noise correction and optical level detection with great precision. A first optical amplifier performs optical amplification with an optical fiber transmission line as an amplification medium. A second optical amplifier inputs second excitation light into an amplification medium in which an active substance for optical amplification is doped to perform optical amplification. A first optical level detector monitors, before transmitting an optical signal, a level of optical noise scattered by the first optical amplifier by emitting first excitation light in an operating environment and detects an optical level at the time of transmitting the optical signal by subtracting the level of the optical noise from a signal amplified by the first optical amplifier. A second optical level detector monitors, before transmitting an optical signal, a level of optical noise emitted from the second optical amplifier by emitting the second excitation light in the operating environment and detects an optical level at the time of transmitting the optical signal by subtracting the level of the optical noise from a signal amplified by the second optical amplifier.
摘要翻译：一种通过以高精度执行光学噪声校正和光学水平检测来提高光传输质量的光传输装置。第一光放大器利用光纤传输线作为放大介质进行光放大。第二光放大器将第二激发光输入到其中掺杂用于光放大的活性物质进行光放大的放大介质中。第一光学电平检测器在发送光信号之前，通过在操作环境中发射第一激发光来监测由第一光放大器散射的光噪声水平，并且通过减去光信号的发送时检测光电平的来自由第一光放大器放大的信号的光噪声。第二光学电平检测器在发送光信号之前通过在操作环境中发射第二激发光来监测从第二光放大器发射的光噪声水平，并通过减去光信号的发送来检测光电平来自由第二光放大器放大的信号的光噪声的电平。

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