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1. 发明授权

US5357362A Optical telephone using optical modulator 失效
标题翻译：光电话使用光调制器
公开(公告)号：US5357362A
公开(公告)日：1994-10-18
申请号：US59467
申请日：1993-05-07
申请人： Yuji Azuma , Yoshihiro Shibata , Shinji Tamura , Nobuo Kuwaki , Nobuhiro Ikawa , Akira Fukuda , Akio Kuwahara
发明人： Yuji Azuma , Yoshihiro Shibata , Shinji Tamura , Nobuo Kuwaki , Nobuhiro Ikawa , Akira Fukuda , Akio Kuwahara
IPC分类号： G02B6/28 , G02B26/02 , H04B10/155 , H04B10/213 , H04B10/12 , G02B6/26 , H04B10/04
CPC分类号： H04B10/505 , G02B26/02 , G02B6/2852
摘要： An optical modulation method operable in an optical transmission path using an optical fiber, wherein an optical fiber bending region is formed by bending a portion of the optical fiber into a U shape having a predetermined bending width. A bending width set point is set in correspondence with a predetermined inclined portion of a characteristic curve representing a dependency ratio of insertion loss of light propagating in said optical fiber bending region relative to the bending width thereof, said predetermined inclined portion of said characteristic curve being located between a predetermined maximum and minimum portion thereof. Intensity modulation of light propagating in the optical fiber is performed using a signal to be transmitted by adjusting the bending width of the optical fiber bending region in correspondence with the signal to be transmitted with reference to the bending width set point as a center. An optical telephone uses an optical modulator including an optical fiber having a U-shaped bending region and a transducer for vibrating one straight portion of the optical fiber.
摘要翻译：一种光学调制方法，其在使用光纤的光传输路径中可操作，其中通过将所述光纤的一部分弯曲成具有预定弯曲宽度的U形形成光纤弯曲区域。弯曲宽度设定点对应于表示在所述光纤弯曲区域中传播的光的插入损耗相对于其弯曲宽度的依赖比的特性曲线的预定倾斜部分，所述特征曲线的所述预定倾斜部分为位于其预定的最大和最小部分之间。通过以相对于弯曲宽度设定点为中心的要发送的信号调整光纤弯曲区域的弯曲宽度，通过使用要发送的信号来进行在光纤中传播的光的强度调制。光电话机使用包括具有U形弯曲区域的光纤的光学调制器和用于振动光纤的一个直线部分的换能器。

2. 发明授权

US5259045A Optical modulation method operable in an optical transmission path and an optical modulator using the optical modulation method 失效
标题翻译：在光传输路径中可操作的光调制方法和使用光调制方法的光调制器
公开(公告)号：US5259045A
公开(公告)日：1993-11-02
申请号：US831562
申请日：1992-02-05
申请人： Yuji Azuma , Yoshihiro Shibata , Shinji Tamura , Nobuo Kuwaki , Nobuhiro Ikawa , Akira Fukuda , Akio Kuwahara
发明人： Yuji Azuma , Yoshihiro Shibata , Shinji Tamura , Nobuo Kuwaki , Nobuhiro Ikawa , Akira Fukuda , Akio Kuwahara
IPC分类号： G02B6/28 , G02B26/02 , H04B10/155 , H04B10/213 , G02B6/26
CPC分类号： H04B10/505 , G02B26/02 , G02B6/2852
摘要： An optical modulation method operable in an optical transmission path using an optical fiber, wherein an optical fiber bending region is formed by bending a portion of the optical fiber into a U shape having a predetermined bending width. A bending width set point is set in correspondence with a predetermined inclined portion of a characteristic curve representing a dependency ratio of insertion loss of light propagating in said optical fiber bending region relative to the bending width thereof, said predetermined inclined portion of said characteristic curve being located between a predetermined maximum and minimum portion thereof. Intensity modulation of light propagating in the optical fiber is performed using a signal to be transmitted by adjusting the bending width of the optical fiber bending region in correspondence with the signal to be transmitted with reference to the bending width set point as a center.
摘要翻译：一种光学调制方法，其在使用光纤的光传输路径中可操作，其中通过将所述光纤的一部分弯曲成具有预定弯曲宽度的U形形成光纤弯曲区域。弯曲宽度设定点对应于表示在所述光纤弯曲区域中传播的光的插入损耗相对于其弯曲宽度的依赖比的特性曲线的预定倾斜部分，所述特征曲线的所述预定倾斜部分为位于其预定的最大和最小部分之间。通过以相对于弯曲宽度设定点为中心的要发送的信号调整光纤弯曲区域的弯曲宽度，通过使用要发送的信号来进行在光纤中传播的光的强度调制。

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