公开(公告)号：US06501876B1

公开(公告)日：2002-12-31

申请号：US09295060

申请日：1999-04-20

申请人： Kuniaki Okada ,  Yorishige Ishii ,  Toshiyuki Matsushima ,  Hideaki Fujita ,  Yukio Kurata

发明人： Kuniaki Okada ,  Yorishige Ishii ,  Toshiyuki Matsushima ,  Hideaki Fujita ,  Yukio Kurata

IPC分类号： C02B626

CPC分类号： G02B6/4246 ,  G02B6/4207

摘要： Bidirectional optical communication devices are attached to both ends of an optical fiber, and each of them has a transmitting light wave guide coupled to a semiconductor laser and a received light wave guide which is coupled to a photodiode, and optically separated from the transmitting light wave guide. On the end face of the light-incident area of the optical fiber on which transmitting light coupled to the optical fiber from the transmitting light wave guide is directed, the light axis of the transmitting light is set so as to tilt with respect to the normal to the end face of the light-incident area so as to prevent reflected light on the end face of the light-incident area caused by the transmitting light from entering the photodiode installed on the same side as the semiconductor laser. Consequently, light communication is simultaneously carried out bidirectionally in a stable manner by using a single optical fiber; thus, it is possible to provide a bidirectional optical communication device and a bidirectional optical communication apparatus using this device at low costs.

摘要翻译： 双向光通信装置连接到光纤的两端，并且它们中的每一个具有耦合到半导体激光器的发射光波导和耦合到光电二极管并且与透射光波光学分离的接收光波导 指南。 在光纤的光入射区域的端面上，其中透射光从发射光波导引导到光纤上，其中透射光的光轴被设定为相对于正常光线倾斜 到光入射区域的端面，以防止由透射光引起的光入射区域的端面上的反射光进入安装在与半导体激光器相同侧的光电二极管。 因此，通过使用单个光纤，以稳定的方式同时进行光通信; 因此，可以以低成本提供使用该装置的双向光通信装置和双向光通信装置。