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31. 发明申请

US20050157290A1 Optical modulating apparatus having bias controller and bias control method 失效
标题翻译：具有偏置控制器和偏置控制方法的光调制装置
公开(公告)号：US20050157290A1
公开(公告)日：2005-07-21
申请号：US10883055
申请日：2004-07-01
申请人： Gyu-Woong Lee , Yun-Je Oh , Seong-Taek Hwang
发明人： Gyu-Woong Lee , Yun-Je Oh , Seong-Taek Hwang
IPC分类号： G02F1/035 , G01C3/00 , G02B26/00
CPC分类号： H04B10/505 , G02F1/0123 , H04B10/50575 , H04B10/58
摘要： Disclosed are an optical modulating apparatus having a bias controller and a bias control method using the same, which can automatically perform a bias adjust so as to keep the optical output characteristic of an optical modulator constant. The optical modulating apparatus includes an optical modulator to modulate an optical carrier using a bias signal; and a bias controller to adjust the bias signal of the optical modulator by detecting a second harmonic signal of the modulated optical signal, setting a minimum point of the second harmonic signal as a reference bias voltage, and then comparing a magnitude of the second harmonic signal that changes according to an external environment with a magnitude of a signal generated from the reference bias voltage.
摘要翻译：公开了具有偏置控制器和使用该偏置控制器的偏置控制方法的光调制装置，其可以自动执行偏置调整，以保持光调制器的光输出特性恒定。光调制装置包括使用偏置信号调制光载波的光调制器; 以及偏置控制器，通过检测所述调制光信号的二次谐波信号来调整所述光调制器的偏置信号，将所述二次谐波信号的最小点设定为基准偏置电压，然后比较所述二次谐波信号的幅度其根据具有从参考偏置电压产生的信号的大小的外部环境而变化。

32. 发明授权

US06888671B2 Optical amplifier device and bidirectional wavelength division multiplexing optical communication system using the same 失效
标题翻译：光放大器器件和双向波分复用光通信系统使用相同
公开(公告)号：US06888671B2
公开(公告)日：2005-05-03
申请号：US10047707
申请日：2002-01-15
申请人： Young-Hoon Joo , Seong-Taek Hwang , Seong-Ha Kim , Gyu-Woong Lee
发明人： Young-Hoon Joo , Seong-Taek Hwang , Seong-Ha Kim , Gyu-Woong Lee
IPC分类号： H01S3/06 , G02B6/293 , H01S3/067 , H04B10/00 , H04B10/2519 , H04B10/29 , H04B10/297 , H04J14/00 , H04J14/02 , H01S3/00
CPC分类号： H04B10/2971 , H04B10/25133
摘要： Disclosed is a bi-direcional wavelength-division multiplexing optical communication system including a first optical transmitter/receiver unit for transmitting a forward optical signal composed of a plurality of channels respectively allocated with wavelengths having a desired wavelength space while receiving a reverse optical signal composed of a plurality of channels respectively allocated with wavelengths each interleaved between associated ones of the wavelengths of the forward optical signal, a second optical transmitter/receiver unit for transmitting the reverse optical signal while receiving the forward optical signal, an optical fiber coupled between the first and second optical transmitter/receiver units, the optical fiber serving as a transmission medium for the forward and reverse optical signals, and an optical amplifier device arranged on the optical fiber and adapted to interleave the channels of the forward and reverse optical signals, bi-directionally received via the optical fiber, in accordance with the wavelengths of the channels, to amplify an interleaved optical signal generated in accordance with the interleaving operation, to split the amplified optical signal into the forward and reverse optical signals in accordance with wavelengths, and to bi-directionally transmit the split forward and reverse optical signals via the optical fiber.
摘要翻译：公开了一种双向波分多路复用光通信系统，包括：第一光发射机/接收机单元，用于发送由分别分配有具有期望波长空间的波长的多个信道组成的正向光信号，同时接收由分别分配有在前向光信号的相关联的波长之间交织的波长的多个信道，用于在接收正向光信号的同时发送反向光信号的第二光发送器/接收器单元，耦合在第一和第第二光发射机/接收机单元，用作正向和反向光信号的传输介质的光纤，以及布置在光纤上的光放大器装置，用于将正向和反向光信号的信道双向交织通过o接收根据信道的波长，放大根据交织操作产生的交错光信号，根据波长将放大的光信号分离成正向和反向光信号，并且双向传输通过光纤分离正向和反向光信号。

33. 发明申请

US20070206953A1 Multi-wavelength bidirectional optical transceiver having monitors 审中-公开
标题翻译：具有监视器的多波长双向光收发器
公开(公告)号：US20070206953A1
公开(公告)日：2007-09-06
申请号：US11701779
申请日：2007-02-02
申请人： Gyu-Woong Lee , Chang-Sup Shim , Yun-Je Oh , Seong-Taek Hwang
发明人： Gyu-Woong Lee , Chang-Sup Shim , Yun-Je Oh , Seong-Taek Hwang
IPC分类号： H04B10/00
CPC分类号： G02B6/4246 , G02B6/29362 , G02B6/4249
摘要： A multi-wavelength bidirectional optical transceiver includes a plurality of optical transmitters for generating and outputting forward optical signals, a plurality of optical receivers for performing optoelectric conversion on reverse optical signals, a band splitter for outputting the forward optical signals that are input from the plurality of optical transmitters to outside the multi-wavelength bidirectional optical transceiver and for outputting reverse optical signals that are input from outside the multi-wavelength bidirectional optical transceiver to the plurality of optical receivers, a power splitter on an optical path between the plurality of optical transmitters and the band splitter for power-splitting the forward optical signals that are input from the plurality of optical transmitters and for outputting portions of the forward optical signals to the band splitter, and a plurality of monitors for performing optoelectric conversion on the remaining portions of the forward optical signals that are input from the band splitter.
摘要翻译：多波长双向光收发器包括用于产生和输出正向光信号的多个光发射机，用于在反光信号上执行光电转换的多个光接收机，用于输出从多个光信号输入的正向光信号的分束器的光发射机到多波长双向光收发器之外并且用于输出从多波长双向光收发器外部输入到多个光接收器的反向光信号;在多个光发射机之间的光路上的功率分配器以及分束器，用于对从多个光发射机输入的正向光信号进行功率分配，并将前向光信号的一部分输出到分束器;以及多个监视器，用于对其中的剩余部分进行光电转换向前从分束器输入的光信号。

34. 发明授权

US07023534B2 Optical modulating apparatus having bias controller and bias control method 失效
标题翻译：具有偏置控制器和偏置控制方法的光调制装置
公开(公告)号：US07023534B2
公开(公告)日：2006-04-04
申请号：US10883055
申请日：2004-07-01
申请人： Gyu-Woong Lee , Yun-Je Oh , Seong-Taek Hwang
发明人： Gyu-Woong Lee , Yun-Je Oh , Seong-Taek Hwang
IPC分类号： G01N21/00
CPC分类号： H04B10/505 , G02F1/0123 , H04B10/50575 , H04B10/58
摘要： Disclosed are an optical modulating apparatus having a bias controller and a bias control method using the same, which can automatically perform a bias adjust so as to keep the optical output characteristic of an optical modulator constant. The optical modulating apparatus includes an optical modulator to modulate an optical carrier using a bias signal; and a bias controller to adjust the bias signal of the optical modulator by detecting a second harmonic signal of the modulated optical signal, setting a minimum point of the second harmonic signal as a reference bias voltage, and then comparing a magnitude of the second harmonic signal that changes according to an external environment with a magnitude of a signal generated from the reference bias voltage.
摘要翻译：公开了具有偏置控制器和使用该偏置控制器的偏置控制方法的光调制装置，其可以自动执行偏置调整，以保持光调制器的光输出特性恒定。光调制装置包括使用偏置信号调制光载波的光调制器; 以及偏置控制器，通过检测所述调制光信号的二次谐波信号来调整所述光调制器的偏置信号，将所述二次谐波信号的最小点设定为基准偏置电压，然后比较所述二次谐波信号的幅度其根据具有从参考偏置电压产生的信号的大小的外部环境而变化。

35. 发明申请

US20050089336A1 Metro wavelength division multiplexing network 审中-公开
标题翻译：城域波分复用网络
公开(公告)号：US20050089336A1
公开(公告)日：2005-04-28
申请号：US10847059
申请日：2004-05-17
申请人： Seong-Taek Hwang , Gyu-Woong Lee , Dong-Han Lee , Yun-Je Oh
发明人： Seong-Taek Hwang , Gyu-Woong Lee , Dong-Han Lee , Yun-Je Oh
IPC分类号： G02F1/35 , H01S3/06 , H01S3/067 , H01S3/23 , H01S3/30 , H04B10/25 , H04B10/294 , H04J14/00 , H04J14/02 , H04B10/02
CPC分类号： H04B10/2916 , H04B10/2914 , H04J14/0221
摘要： A metro wavelength division multiplexing network is disclosed and includes a plurality of optical repeaters, connected through an optical-fiber link, each of the optical repeaters having a Raman-gain medium for Raman-amplifying an inputted optical signal, and a semiconductor optical amplifier for amplifying the Raman-amplified optical signal, wherein each of the optical repeaters accepts a pump light having a designated wavelength for pumping the corresponding Raman-gain medium.
摘要翻译：公开了一种城域波分复用网络，包括通过光纤链路连接的多个光中继器，每个光中继器具有用于拉曼放大输入的光信号的拉曼增益介质，以及用于放大拉曼放大的光信号，其中每个光中继器接收具有指定波长的泵浦光以泵送对应的拉曼增益介质。

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