公开(公告)号：US11411648B2

公开(公告)日：2022-08-09

申请号：US17312705

申请日：2019-11-28

申请人： NITTO DENKO CORPORATION ,  Yasuhiro Koike

发明人： Yuichi Tsujita ,  Takeshi Tanaka ,  Satoshi Ito ,  Keita Kiyoshima ,  Atsushi Yamagishi ,  Yasuhiro Koike ,  Azusa Inoue

IPC分类号： H04B10/00 ,  H04B10/2575 ,  H04B10/50 ,  H04B10/66 ,  H04J14/02

摘要： An optical transmission system transmits a Radio Frequency (RF) signal by a frequency division multiplexing method. The optical transmission system includes a Transmitter Optical SubAssembly (TOSA), an optical fiber, and a Receiver Optical SubAssembly (ROSA). The TOSA includes a surface emitting laser diode configured to be capable of emitting light at output of 0.8 mW or more. In the optical transmission system including the surface emitting laser diode, a noise index obtained by a measurement method including a predetermined step is 10.0 dBμV or less.

公开(公告)号：US20200264365A1

公开(公告)日：2020-08-20

申请号：US16645854

申请日：2018-09-11

申请人： Yasuhiro Koike ,  NITTO DENKO CORPORATION

发明人： Yasuhiro Koike ,  Azusa Inoue

IPC分类号： G02B6/028 ,  G02B6/02

摘要： Provided is an optical fiber cable which allows for high-quality signal transmission in short-distance transmission. The optical fiber cable is designed for use in optical communication based on transmitting an optical beam from a light-emitting device, to a light-receiving device. The optical fiber cable has: a proximal end which is one end thereof on the side of the light-emitting device, and a distal end which is the other end thereof on the side of the light-receiving device, wherein an optical beam returning from the side of the distal end toward the side of the light-emitting device has an M2 factor of 1.7 or more; and a length of 50 m or less.

公开(公告)号：US11092738B2

公开(公告)日：2021-08-17

申请号：US16645854

申请日：2018-09-11

申请人： Yasuhiro Koike ,  NITTO DENKO CORPORATION

发明人： Yasuhiro Koike ,  Azusa Inoue

IPC分类号： G02B6/028 ,  G02B6/02

摘要： Provided is an optical fiber cable which allows for high-quality signal transmission in short-distance transmission. The optical fiber cable is designed for use in optical communication based on transmitting an optical beam from a light-emitting device, to a light-receiving device. The optical fiber cable has: a proximal end which is one end thereof on the side of the light-emitting device, and a distal end which is the other end thereof on the side of the light-receiving device, wherein an optical beam returning from the side of the distal end toward the side of the light-emitting device has an M2 factor of 1.7 or more; and a length of 50 m or less.