发明授权
- 专利标题： Optical transmission equipment which transmits an amplified optical data signal and an optical surveillance signal
- 专利标题（中）： 发送放大的光数据信号和光监视信号的光传输设备
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申请号： US244856申请日： 1999-02-05
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公开(公告)号： US6018405A公开(公告)日： 2000-01-25
- 发明人: Keiji Tomooka , Naohiro Sakakida , Shin Nishimura , Yoshihiro Ashi , Hironari Matsuda , Satoshi Aoki , Yukio Nakano , Masahiro Takatori , Toru Kazawa , Shinya Sasaki , Ryoji Takeyari , Hiroyuki Nakano
- 申请人： Keiji Tomooka , Naohiro Sakakida , Shin Nishimura , Yoshihiro Ashi , Hironari Matsuda , Satoshi Aoki , Yukio Nakano , Masahiro Takatori , Toru Kazawa , Shinya Sasaki , Ryoji Takeyari , Hiroyuki Nakano
- 申请人地址： JPX Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX4-087247 19920408
- 主分类号： H04B10/00
- IPC分类号： H04B10/00 ; H04B10/02 ; H04B10/08 ; H04B10/17 ; H04J3/14 ; H04J14/02 ; H04Q11/00 ; H04Q11/04
摘要：
An optical transmission system accomplishes optical transmission over a long distance by combining a multiplexing line terminal with optical amplifiers, linear repeaters, and regenerators with optical amplifiers combined together. The system also accomplishes the optical transmission over a short distance by directly connecting the linear terminals therebetween, with an electric-to-optic converter replaced by an electric-to-optic converter having a semiconductor amplifier, with an optic-toelectric converter by an optic-to-electric converter having an avalanche photodiode as light receiver, and with no use of any optical booster amplifier and optical preamplifier in the multiplexing line terminal. With these, the optical transmission system can be easily constructed depending on the transmission distance required.
公开/授权文献
- US4909394A Nestable lockable foamed thermoplastic container or cup 公开/授权日：1990-03-20