The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 09, 2022
Filed:
Nov. 28, 2019
Nitto Denko Corporation, Osaka, JP;
Yasuhiro Koike, Kanagawa, JP;
Yuichi Tsujita, Osaka, JP;
Takeshi Tanaka, Osaka, JP;
Satoshi Ito, Osaka, JP;
Keita Kiyoshima, Osaka, JP;
Atsushi Yamagishi, Osaka, JP;
Yasuhiro Koike, Kanagawa, JP;
Azusa Inoue, Tokyo, JP;
NITTO DENKO CORPORATION, Osaka, JP;
Other;
Abstract
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.