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    • 5. 发明申请
    • OPTICAL AMPLIFYING DEVICE AND OPTICAL TRANSMISSION SYSTEM
    • 光学放大器件和光传输系统
    • US20090129785A1
    • 2009-05-21
    • US12257045
    • 2008-10-23
    • Yuki MURAKAMI
    • Yuki MURAKAMI
    • H04B10/12H01S3/00H04B10/00
    • H01S3/06754H01S3/10015H04B10/291
    • An optical amplifying device includes an amplifying unit for amplifying an optical signal using stimulated emission; a filter unit for attenuating at least part of a band of an output of the amplifying unit other than a main signal band of the optical signal; and an amplification control unit for controlling the amplifying unit on the basis of an output of the filter unit, the amplification control unit having, as a mode for controlling the amplifying unit, an amplified spontaneous emission output mode for causing the amplifying unit to operate, with the optical signal not being input to the amplifying unit, and for causing the filter unit to filter the amplified spontaneous emission output from the amplifying unit and to output the filtered amplified spontaneous emission to outside.
    • 光放大装置包括用于使用受激发射放大光信号的放大单元; 滤波器单元,用于衰减除了所述光信号的主信号频带之外的所述放大单元的输出的频带的至少一部分; 以及放大控制单元,用于根据滤波器单元的输出来控制放大单元,放大控制单元具有用于控制放大单元的模式,用于使放大单元工作的放大的自发发射输出模式, 其中光信号不被输入到放大单元,并且用于使滤波器单元滤除放大单元的放大的自发发射输出并将滤波的放大的自发发射输出到外部。
    • 9. 发明授权
    • Propagation apparatus and dispersion value setting method
    • 传播装置和色散值设定方法
    • US08412045B2
    • 2013-04-02
    • US12631851
    • 2009-12-06
    • Yuki MurakamiKatsumi SugawaToshiyuki HisanoAkihiro Horiuchi
    • Yuki MurakamiKatsumi SugawaToshiyuki HisanoAkihiro Horiuchi
    • H04J14/02
    • H04B10/25133H04B2210/258
    • A propagation apparatus includes a plurality of dispersion compensation execution units which accept a signal of a single wavelength from a wavelength-multiplexed signal which is received and execute dispersion compensation on the signal by inputting the accepted signal to a tunable dispersion compensator with an adjusted dispersion value, and a dispersion value calculation unit which acquires each dispersion value adjusted by the plurality of the dispersion compensation execution units, approximates the dispersion value of the wavelength assigned to a newly built line by using the acquired dispersion values whose signal error rates are in a tolerable range, and sets the approximated dispersion value as an initial value in the tunable dispersion compensator of the newly built line.
    • 传播装置包括多个色散补偿执行单元,其从接收到的波长多路复用信号接收单个波长的信号,并通过将可接受的信号输入到具有经调整的色散值的可调色散补偿器对该信号执行色散补偿 以及色散值计算单元,其获取由所述多个色散补偿执行单元调整的每个色散值,通过使用所获取的信号差错率在可容许的色散值来近似分配给新建线的波长的色散值 并将近似色散值设置为新建线路的可调色散补偿器中的初始值。
    • 10. 发明申请
    • Transmission apparatus
    • 传输装置
    • US20070121195A1
    • 2007-05-31
    • US11407170
    • 2006-04-20
    • Yuki MurakamiHideaki SugiyaAkira Yamamoto
    • Yuki MurakamiHideaki SugiyaAkira Yamamoto
    • H01S3/00
    • H04B10/0797
    • A transmission apparatus designed to be capable of monitoring faults which occur between the input stage of an optical multiplexer and the input stage of an optical amplifier, appropriately switching between automatic gain control and automatic level control, and outputting signal lights with appropriate optical power, without using a spectrum analyzer. The optical multiplexer combines the wavelengths of a plurality of signal lights. The optical amplifier is connected at the latter stage of the optical multiplexer, and operates in the automatic gain control mode or in the automatic level control mode, the automatic gain control mode maintaining a constant gain for wavelength-multiplexed signal light, the automatic level control mode maintaining constant output power for the wavelength-multiplexed signal light. A mode selector selects the automatic gain control mode or the automatic level control mode for the optical amplifier based on the total optical power of the plurality of signal lights to be input to the optical multiplexer and the optical power of the wavelength-multiplexed signal light to be input to the optical amplifier.
    • 一种发送装置,被设计为能够监视在光复用器的输入级与光放大器的输入级之间出现的故障,适当地切换自动增益控制和自动电平控制,并以适当的光功率输出信号灯,而不需要 使用频谱分析仪。 光复用器组合多个信号光的波长。 光放大器在光复用器的后级连接,以自动增益控制模式或自动电平控制模式工作,自动增益控制模式保持波长复用信号光的恒定增益,自动电平控制 模式保持波长复用信号光的恒定输出功率。 模式选择器基于要输入到光复用器的多个信号光的总光功率和波分复用信号光的光功率,选择光放大器的自动增益控制模式或自动电平控制模式 输入到光放大器。