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    • 3. 发明申请
    • POLARIZATION MULTIPLEXING TRANSMITTER AND TRANSMISSION SYSTEM
    • 偏振多路复用发射机和传输系统
    • US20110170869A1
    • 2011-07-14
    • US12985455
    • 2011-01-06
    • Kohei MANDAINobuhiko KIKUCHIShinya SASAKI
    • Kohei MANDAINobuhiko KIKUCHIShinya SASAKI
    • H04J14/06
    • H04J14/06
    • A polarization multiplexing transmitter which generates polarization-multiplexed signals which are arbitrarily polarization-scrambled at high speed, without adding a polarization modulator and a polarization scrambler. In the transmitter, an orthogonally polarized signal generator includes two optical modulators which modulate the electric fields of optical signals and generate two optical signals with mutually orthogonal polarized waves. The transmitter includes electric field mappers which convert two data strings into electric field signals, polarization mappers which give different polarized waves to the two signals, polarization rotators which rotate the polarized waves of the signals uniformly, a polarization multiplexer which multiplexes the two polarization-rotated signals, a polarization demultiplexer which demultiplexes the multiplexed signal into polarized wave components of optical signals generated by the orthogonally polarized signal generator, and a driver. The optical modulators are driven to make the two demultiplexed electric field signals consistent with the electric fields of optical signals modulated by the modulators.
    • 一种偏振复用发送器,其生成以高速任意偏振加扰的偏振复用信号,而不添加偏振调制器和偏振加扰器。 在发射机中,正交极化信号发生器包括调制光信号的电场并产生具有相互正交的极化波的两个光信号的两个光调制器。 发射机包括将两个数据串转换为电场信号的电场映射器,向两个信号提供不同极化波的偏振映射器,使信号的偏振波均匀旋转的偏振旋转器,多路复用两个偏振旋转 信号,将多路复用信号解复用为由正交偏振信号发生器产生的光信号的偏振波分量的偏振解复用器和驱动器。 驱动光调制器以使两个解复用的电场信号与由调制器调制的光信号的电场一致。
    • 5. 发明申请
    • OPTICAL COMMUNICATION MODULE AND OPTICAL FIBER COMMUNICATION SYSTEM
    • 光通信模块和光纤通信系统
    • US20120224168A1
    • 2012-09-06
    • US13363883
    • 2012-02-01
    • Riu HIRAINobuhiko KIKUCHITetsuya UDAShinya SASAKI
    • Riu HIRAINobuhiko KIKUCHITetsuya UDAShinya SASAKI
    • G01J3/44
    • H04B10/0791H04B10/071
    • Bending of an optical fiber where a heat may be generated by a high output power can be detected without using a dedicated light source. An optical communication module that outputs a continuous wave light generated by at least one light source to an optical fiber transmission line, includes: (1) a loss measurement unit that measures a loss of an amplified spontaneous emission generated by allowing the continuous wave light output from the light source to create stimulated Raman scattering in the optical fiber transmission line; (2) a fiber abnormality analyzer that detects the abnormal state of the optical fiber transmission line on the basis of loss information on the ASE measured by the loss measurement unit; and (3) a light source controller that controls a supply state of the continuous wave light from the light source on the basis of the detection of the fiber abnormality analyzer.
    • 可以在不使用专用光源的情况下检测可以通过高输出功率产生热量的光纤的弯曲。 将由至少一个光源产生的连续波光输出到光纤传输线的光通信模块包括:(1)损耗测量单元,其测量通过允许连续波光输出产生的放大的自发发射的损耗 从光源到光纤传输线中产生受激拉曼散射; (2)光纤异常分析装置,根据由损失测量部测得的ASE的损失信息,检测光纤传输线的异常状态; 以及(3)光源控制器,其基于光纤异常分析仪的检测来控制来自光源的连续波光的供给状态。