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公开(公告)号：US5581389A
公开(公告)日：1996-12-03
申请号：US364204
申请日：1994-12-27
申请人： Tekken Lee , Nobunari Takeuchi , Haruyoshi Uchiyama , Kaoru Shimizu , Tsuneo Horiguchi , Yahei Koyamada
发明人： Tekken Lee , Nobunari Takeuchi , Haruyoshi Uchiyama , Kaoru Shimizu , Tsuneo Horiguchi , Yahei Koyamada
CPC分类号： H04B10/2572 , H01S3/1301 , H01S3/10
摘要： The present invention provides light frequency control apparatus comprising a light pulse signal generating mechanism for generating a light pulse signal of a standard frequency; a light frequency shifting mechanism for circulating this light pulse signal a predetermined number of times, delaying this light pulse signal at each cycle thereby sequentially shifting and outputting the aforementioned light pulse signal; an extracting mechanism for extracting a light pulse signal in the second half of a cycle from the output of the light frequency shifting mechanism; and a polarization control mechanism inserted into the light frequency shifting mechanism for controlling the angle of polarization of the light pulse signal circulating in the light frequency shifting mechanism based on the amount of attenuation of the light pulse signal outputted by the extracting mechanism.
摘要翻译： 本发明提供一种光频控制装置，其包括用于产生标准频率的光脉冲信号的光脉冲信号发生机构; 用于使该光脉冲信号循环预定次数的光频移位机构，在每个周期延迟该光脉冲信号，从而依次移位并输出上述光脉冲信号; 提取机构，用于从光频移位机构的输出端提取周期的后半部分的光脉冲信号; 以及偏振控制机构，其插入到所述光频移动机构中，用于基于由所述提取机构输出的所述光脉冲信号的衰减量来控制在所述光频移动机构中循环的所述光脉冲信号的偏振角。
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公开(公告)号：US5438578A
公开(公告)日：1995-08-01
申请号：US265724
申请日：1994-06-24
IPC分类号： H04B10/293 , G02F2/02 , H01S5/0687 , H04B10/07 , H04B10/516 , H04B10/564 , H04B10/572 , H01S3/13
CPC分类号： H04B10/572 , H04B10/506
摘要： A light frequency shifter repeatedly generates, at predetermined cycles, an optical signal, an optical frequency component of which varies in a stepped manner at fixed intervals, and timing generating circuit generates timing signals corresponding to this variation. Detecting mechanisms synchronize, with the timing signal, a frequency difference between a reference light frequency freely selected from the light frequency component and a feedback light frequency of feedback light fed back so as to conform to this reference light frequency, and detect this. Light frequency-regulated light source extracts an output optical signal circulating within a closed loop circuit controlling the light frequency in accordance with the frequency difference described above, and supplies this to a light output terminal, and feeds back a portion of the output optical signal to the detecting mechanism as the feedback light described above.
摘要翻译： 光移相器在预定的周期重复地以固定的间隔以阶梯式的方式变化光频率分量的光信号，并且定时产生电路产生对应于该变化的定时信号。 检测机构与定时信号同步从光频率成分自由选择的参考光频与反馈光的反馈光频率之间的频率差，以符合该参考光频率，并进行检测。 光频调节光源根据上述频率差提取在控制光频率的闭环电路内循环的输出光信号，并将其提供给光输出端，并将输出光信号的一部分反馈到 作为上述反馈光的检测机构。
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公开(公告)号：US5394235A
公开(公告)日：1995-02-28
申请号：US214136
申请日：1994-03-16
申请人： Nobunari Takeuchi , Tekken Lee , Kaoru Shimizu , Tsuneo Horiguchi
发明人： Nobunari Takeuchi , Tekken Lee , Kaoru Shimizu , Tsuneo Horiguchi
CPC分类号： G01M11/335 , G01M11/319 , G01M11/332
摘要： An apparatus for measuring a distortion position of an optical fiber is disclosed. A light source generates continuous light with frequency f.sub.0 and injects the continuous light into a far-end of an optical fiber to be measured. An optical coupler divides the outgoing continuous light from a near-end of the optical fiber. An optical amplifier amplifies output light from the optical coupler. A first optical switch generates a first optical pulse by switching output light from the optical amplifier. An optical frequency shifter generates a second optical pulse having frequency components (f.sub.0 +f.sub.m) based on the first optical pulse from the first optical switch. A second optical switch injects the second optical pulse into the near-end of the optical fiber. A display displays outgoing continuous light with frequency f.sub.0 from the near-end of the optical fiber via the optical coupler and the second optical switch. A timing control circuit controls the operation timing of the first and second optical switches and the optical frequency shifter.
摘要翻译： 公开了一种用于测量光纤的失真位置的装置。 光源产生具有频率f0的连续光，并将连续的光注入要测量的光纤的远端。 光耦合器分离出来自光纤近端的输出连续光。 光放大器放大来自光耦合器的输出光。 第一光开关通过切换来自光放大器的输出光产生第一光脉冲。 光移位器基于来自第一光开关的第一光脉冲产生具有频率分量（f0 + fm）的第二光脉冲。 第二光开关将第二光脉冲注入光纤的近端。 显示器通过光耦合器和第二光开关显示来自光纤近端的频率f0的出射连续光。 定时控制电路控制第一和第二光开关和光移频器的操作定时。
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公开(公告)号：US5500762A
公开(公告)日：1996-03-19
申请号：US364327
申请日：1994-12-27
申请人： Haruyoshi Uchiyama , Tekken Lee , Nobunari Takeuchi , Kaoru Shimizu , Tsuneo Horiguchi , Yahei Koyamada
发明人： Haruyoshi Uchiyama , Tekken Lee , Nobunari Takeuchi , Kaoru Shimizu , Tsuneo Horiguchi , Yahei Koyamada
CPC分类号： H04B10/2572 , H01S3/06754
摘要： The present invention provides light frequency control apparatus comprising a light pulse signal generating mechanism for converting continuous light into a light pulse signal, and outputting this light pulse signal; a light signal generating mechanism for repeatedly generating at predetermined cycles, a light signal, in which a light frequency component therein is shifted to form a staircase shape based on the number of cycles of a loop within which the light pulse signal circulates; and a dummy light generating mechanism for generating dummy light at a timing such that the level of the light signal becomes zero, and supplying this dummy light to the light amplifying mechanism. The aforementioned loop is formed from a light amplifying mechanism for amplifying the light pulse signal outputted from the light pulse signal generating mechanism, light delay mechanism for delaying the light pulse signal a fixed amount; and frequency shifting mechanism for shifting the frequency of the light pulse signal.
摘要翻译： 本发明提供一种光频控制装置，包括：光脉冲信号发生机构，用于将连续光转换为光脉冲信号，并输出该光脉冲信号; 光信号发生机构，用于以预定周期反复产生基于光脉冲信号在其中循环的循环的循环次数而将其中的光频分量偏移以形成阶梯形状的光信号; 以及用于在使得光信号的电平变为零的定时产生虚拟光并将虚拟光提供给光放大机构的虚拟光产生机构。 上述环路由用于放大从光脉冲信号发生机构输出的光脉冲信号的光放大机构形成，用于将光脉冲信号延迟固定量的光延迟机构; 以及用于移动光脉冲信号的频率的频移机构。
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公开(公告)号：US5493110A
公开(公告)日：1996-02-20
申请号：US265839
申请日：1994-06-24
IPC分类号： G02F2/02 , H01S5/0687 , H04B10/07 , H04B10/293 , H04B10/516 , H04B10/564 , H04B10/572 , G01J1/32 , H01S3/13
CPC分类号： H04B10/506
摘要： A reference light generating mechanism generates reference light, a light frequency component of which varies in a stepped manner at fixed intervals, repeatedly at pre-specified cycles, and generates a timing signal in accordance with this variance. A detecting mechanism detects a frequency difference between a reference light frequency freely selected from among the light frequency component and a feedback light frequency of feedback light fed back so as to conform to the reference light frequency, and synchronizes this with a timing signal, and an output light generating mechanism generates output light, the light frequency of which is controlled in accordance with the frequency difference, and conducts the feedback of this output light to the detecting mechanism as feedback light.
摘要翻译： 参考光产生机构以预定的周期重复地以固定的间隔以分阶段的方式产生参考光，并且根据该方差产生定时信号。 检测机构检测从光频率分量中自由选择的参考光频率与反馈光的反馈光频率之间的频率差，以符合参考光频率，并将其与定时信号同步，并且 输出光产生机构产生其频率根据频率差被控制的输出光，并将该输出光的反馈作为反馈光传导到检测机构。
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