公开(公告)号：US20060140548A1

公开(公告)日：2006-06-29

申请号：US11185040

申请日：2005-07-20

申请人： Dong-Jae Shin ,  Chang-Sup Shim ,  Seong-Taek Hwang ,  Dae-Kwang Jung

发明人： Dong-Jae Shin ,  Chang-Sup Shim ,  Seong-Taek Hwang ,  Dae-Kwang Jung

IPC分类号： G02B6/36

CPC分类号： G02B6/4246 ,  G02B6/2706 ,  G02B6/29361 ,  G02B6/29385

摘要： Disclosed are an optical transceiver and an passive optical network using the same. The optical transceiver includes a polarization splitter for splitting injected light input from an outside of the optical transceiver into a first polarization component and a second polarization component, a light injected transmitter for receiving the first polarization component and outputting an optical signal generated based on the first polarization component, and an optical receiver for detecting an electrical signal based on the second polarization component.

摘要翻译： 公开了一种光收发器和使用其的无源光网络。 光收发器包括：偏振分离器，用于将从光收发器的外部输入的注入光分成第一偏振分量和第二偏振分量;光注入发射器，用于接收第一偏振分量，并输出基于第一偏振分量产生的光信号 偏振分量和用于基于第二偏振分量检测电信号的光接收器。

公开(公告)号：US20060104636A1

公开(公告)日：2006-05-18

申请号：US11281761

申请日：2005-11-17

申请人： Dae-Kwang Jung ,  Chang-Sup Shim ,  Yun-Je Oh ,  Seong-Taek Hwang

发明人： Dae-Kwang Jung ,  Chang-Sup Shim ,  Yun-Je Oh ,  Seong-Taek Hwang

IPC分类号： H04B10/20

CPC分类号： H04J14/0291 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0282 ,  H04J14/0283

摘要： A bi-directional metro-access optical network includes a central office for generating beams of different wavelength bands and a plurality of wavelength locked downward optical signals and for detecting wavelength locked upward optical signals; a plurality of nodes for detecting the downward optical signals of different wavelengths and for generating the wavelength locked upward optical signals of which wavelengths are locked by respective wavelength beams; a first optical fiber line for linking together each of the nodes with the central office in a ring shape, transmitting the upward optical signals to the central office, and transmitting the downward optical signals and the beams to each of the nodes; and a second optical fiber line for linking together each of the nodes with the central office in a ring shape along the circumference of the first optical fiber line.

摘要翻译： 双向地铁接入光网络包括用于产生不同波长带的波束和多个波长锁定的向下的光信号的中心局和用于检测波长锁定的向上的光信号; 多个节点，用于检测不同波长的向下的光信号，并产生波长锁定的上行光信号，波长由各波长波束锁定; 用于将每个节点与中心局以环形形式连接在一起的第一光纤线路，将向上的光信号传输到中心局，并将向下的光信号和光束传输到每个节点; 以及第二光纤线路，用于将每个节点与中心局沿着第一光纤线路的圆周以环形形状连接在一起。

公开(公告)号：US20060039700A1

公开(公告)日：2006-02-23

申请号：US11005212

申请日：2004-12-06

申请人： Hyun-Soo Kim ,  Dae-Kwang Jung ,  Jeong-Seok Lee ,  Sung-Kee Kim

发明人： Hyun-Soo Kim ,  Dae-Kwang Jung ,  Jeong-Seok Lee ,  Sung-Kee Kim

IPC分类号： H04J14/00

CPC分类号： H04J14/0282 ,  H04J14/0226 ,  H04J14/0246 ,  H04J14/025

摘要： A passive optical network using downstream and upstream optical signals for achieving a two-way communication is provided, wherein the downstream and upstream optical signals have different polarization components and an equal wavelength band.

摘要翻译： 提供了一种使用用于实现双向通信的下行和上行光信号的无源光网络，其中下游和上游光信号具有不同的偏振分量和相等的波长带。

公开(公告)号：US20060008202A1

公开(公告)日：2006-01-12

申请号：US11144949

申请日：2005-06-03

申请人： Dong-Jae Shin ,  Seong-Taek Hwang ,  Dae-Kwang Jung

发明人： Dong-Jae Shin ,  Seong-Taek Hwang ,  Dae-Kwang Jung

IPC分类号： G02B6/28

CPC分类号： H04B10/506 ,  H04J14/02

摘要： A light source apparatus for use with optical communication using external-injection light sources, and an optical communication system using the light source apparatus. The light source apparatus for optical communication includes external-injection light sources, and a multiplexer/demultiplexer. The multiplexer/demultiplexer provides light components spectrum-sliced broadband light from a broadband light source as respective external injection light inputs. The multiplexer/demultiplexer includes a first waveguide to transmit the broadband light and multiplexed light with a plurality of wavelengths, a plurality of second waveguides each to transmit light with an associated one of the wavelengths, and a plurality of optical filters each to pass light with an associated one of the wavelengths and to reflect the remaining wavelengths. The pass wavelength of each optical filter is set such that insertion loss distribution of the optical filters at the wavelengths is similar to a gain distribution of the injection light sources at the wavelengths.

摘要翻译： 一种用于使用外部注入光源的光通信的光源装置和使用该光源装置的光通信系统。 用于光通信的光源装置包括外部注入光源和多路复用器/解复用器。 多路复用器/解复用器提供来自宽带光源的光分量光谱切片宽带光作为相应的外部注入光输入。 多路复用器/解复用器包括：第一波导，用于传输宽带光和具有多个波长的多路复用光;多个第二波导，每个用于透射具有相关联的一个波长的光;以及多个光学滤光器， 相关联的一个波长并反射剩余的波长。 设置每个滤光器的通过波长，使得波长处的滤光器的插入损耗分布类似于在波长处的注入光源的增益分布。

公开(公告)号：US20050063704A1

公开(公告)日：2005-03-24

申请号：US10890477

申请日：2004-07-13

申请人： Eun-Hwa Lee ,  Dong-Jae Shin ,  Jung-Kee Lee ,  Dae-Kwang Jung ,  Jun-Youn Kim

发明人： Eun-Hwa Lee ,  Dong-Jae Shin ,  Jung-Kee Lee ,  Dae-Kwang Jung ,  Jun-Youn Kim

IPC分类号： H04B10/04 ,  H04B10/155 ,  H04J14/02 ,  H04J14/00

CPC分类号： H04B10/506 ,  H04J14/02

摘要： A WDM optical transmitter using a wideband gain laser comprises a plurality of wideband gain lasers and a wavelength division multiplexer. Each wideband gain laser includes a gain medium with a 3 dB bandwidth of 40 nm or more at a threshold current, and it amplifies corresponding incoherent light injected into the gain medium and outputs a corresponding channel. The multiplexer multiplexes channels, outputted from the wideband gain lasers, into an optical signal in a WDM scheme and outputs the multiplexed optical signal.

摘要翻译： 使用宽带增益激光器的WDM光发射机包括多个宽带增益激光器和波分复用器。 每个宽带增益激光器包括在阈值电流下具有40nm或更大的3dB带宽的增益介质，并且其放大注入到增益介质中的相应非相干光并输出相应的通道。 多路复用器将从宽带增益激光器输出的信道复用为WDM方案中的光信号，并输出复用的光信号。

公开(公告)号：US07283748B2

公开(公告)日：2007-10-16

申请号：US10721712

申请日：2003-11-25

申请人： Dae-Kwang Jung ,  Yun-Je Oh ,  Seong-Taek Hwang

发明人： Dae-Kwang Jung ,  Yun-Je Oh ,  Seong-Taek Hwang

IPC分类号： H04J14/00 ,  G02F1/00

CPC分类号： H04J14/0297 ,  H04J14/0226 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282 ,  H04J14/029 ,  H04Q11/0067 ,  H04Q2011/0016 ,  H04Q2011/0081

摘要： A self-healing WDM (Wavelength Division Multiplexing)-PON (Passive Optical Network) system is disclosed and includes a CO (Central Office), a RN (Remote Node) and a plurality of subscriber units. The system includes a trunk working fiber and a trunk protection fiber for connecting the CO with the RN, a distribution working fiber, and a distribution protection fiber for connecting the RN with the subscriber units. The CO is connected to the trunk working fiber and the trunk protection fiber, and contains an optical switching unit switched when an error or communication failure occurs, an upstream working optical receiver and an upstream protection optical receiver for receiving upstream data, and a downstream working light source and a downstream protection light source for transmitting downstream data. Each subscriber unit is connected to the distribution working fiber and the distribution protection fiber, and contains an optical switching unit switched when an error or communication failure occurs, a downstream working optical receiver and a downstream protection optical receiver for receiving downstream data, and an upstream working light source and an upstream protection light source for transmitting downstream data.

摘要翻译： 公开了一种自愈WDM（波分多路复用）-PON（被动光网络）系统，包括CO（中心局），RN（远端节点）和多个用户单元。 该系统包括中继线工作光纤和中继保护光纤，用于将CO与RN连接，分配工作光纤和用于将RN与用户单元连接的分布保护光纤。 CO连接到主干工作光纤和中继保护光纤，并且在发生错误或通信故障时包含切换的光交换单元，用于接收上游数据的上行工作光接收机和上游保护光接收机，以及下行工作 光源和用于传输下游数据的下游保护光源。 每个用户单元连接到分发工作光纤和分布保护光纤，并且包含当发生错误或通信故障时切换的光交换单元，用于接收下行数据的下行工作光接收机和下游保护光接收机，以及上游 工作光源和上游保护光源，用于传输下游数据。

公开(公告)号：US20070189773A1

公开(公告)日：2007-08-16

申请号：US11644570

申请日：2006-12-22

申请人： Dae-Kwang Jung ,  Seong-Taek Hwang ,  Jin-Woo Park ,  Sang-Rok Lee ,  Seong-Geun Lee

发明人： Dae-Kwang Jung ,  Seong-Taek Hwang ,  Jin-Woo Park ,  Sang-Rok Lee ,  Seong-Geun Lee

IPC分类号： H04J14/00

CPC分类号： H04J14/0226 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0282

摘要： A TDM PON including: an optical line terminal; a remote node including multiple secondary optical distributors connected to multiple optical network units; and the multiple optical network units generating and outputting a corresponding upstream optical signal. Each of the secondary optical distributors splits an upstream optical signal input from one of the optical network units connected thereto so as to generate split upstream optical signals and transmits one of the upstream optical signals to the optical line terminal, and transmits another upstream optical signal to a different optical network unit.

摘要翻译： 一种TDM PON，包括：光线路终端; 远程节点，包括连接到多个光网络单元的多个次级光分配器; 多个光网络单元生成并输出相应的上行光信号。 每个二次光分配器分离从连接到其上的光网络单元之一输入的上行光信号，以产生分离的上行光信号，并将上游光信号之一发送到光线路终端，并将另一上游光信号发送到 不同的光网络单元。

公开(公告)号：US07228021B2

公开(公告)日：2007-06-05

申请号：US11185105

申请日：2005-07-20

申请人： Dae-Kwang Jung ,  Yun-Je Oh ,  Seong-Taek Hwang

发明人： Dae-Kwang Jung ,  Yun-Je Oh ,  Seong-Taek Hwang

IPC分类号： G02B6/12 ,  H04J14/02

CPC分类号： G02B6/29362 ,  G02B6/29383

摘要： Disclosed is a bidirectional optical add/drop multiplexer that includes a first filter for reflecting a first optical signal pre-selected among input forward optical signals and transmitting the remaining forward optical signals, a second filter for reflecting a second optical signal pre-selected among input reverse optical signals and transmitting the remaining reverse optical signals, a first optical splitter for combining the first optical signal and the forward optical signals by reflection from the first filter, wherein the reflected second optical signal having passed through the first filter is outputted to a connected second drop terminal and the first optical signal input from a connected first add terminal is outputted to the first filter, and a second optical splitter for adding the second optical signal and the reverse optical signals by reflection from the second filter, wherein the reflected first optical signal having passed through the second filter is outputted to a connected first drop terminal and the second optical signal input from a connected second add terminal is outputted to the second filter.

摘要翻译： 公开了一种双向光分插复用器，其包括：第一滤波器，用于反射在输入的正向光信号中预先选择的第一光信号，并传输剩余的正向光信号;第二滤波器，用于反映在输入中预先选择的第二光信号 反向光信号并发送剩余的反向光信号，第一分光器，用于通过来自第一滤光器的反射组合第一光信号和正光信号，其中已经穿过第一滤光器的反射的第二光信号被输出到连接 第二分支终端和从连接的第一加法终端输入的第一光信号被输出到第一滤波器，以及第二分光器，用于通过来自第二滤波器的反射来添加第二光信号和反相光信号，其中反射的第一光 已经通过第二滤波器的信号被输出到co 连接的第一分接端子和从连接的第二加法端子输入的第二光信号被输出到第二滤波器。

公开(公告)号：US07224519B2

公开(公告)日：2007-05-29

申请号：US10798662

申请日：2004-03-11

申请人： Hyun-Cheol Shin ,  Jeong-Seok Lee ,  Seong-Taek Hwang ,  Dae-Kwang Jung

发明人： Hyun-Cheol Shin ,  Jeong-Seok Lee ,  Seong-Taek Hwang ,  Dae-Kwang Jung

IPC分类号： H01S5/50 ,  H04J14/02

CPC分类号： H01S5/14 ,  H01S5/0265 ,  H01S5/028 ,  H01S5/06812 ,  H01S5/1085 ,  H01S5/1092

摘要： A multi-wavelength light source includes a substrate, a fabry-perot laser laminated on the substrate that is operated by driving current below a predetermined threshold current to generate multi-wavelength light including a plurality of peaks whose wavelengths and spacing are identical to these of WDM channels. A semiconductor optical amplifier (SOA) is laminated on the substrate in an arrangement such that a slant surface of the SOA is opposed to a side surface of the fabry-perot laser, which serves to thereby amplify the multi-wavelength light output from the fabry-perot laser. The semiconductor optical amplifier is driven in a gain saturation state to reduce the relative intensity of noise in the channels of the multi-wavelength light that are simultaneously amplified.

摘要翻译： 多波长光源包括基板，层叠在基板上的fabry-perot激光器，其通过驱动低于预定阈值电流的电流来操作，以产生多波长光，其包括波长和间距与 WDM频道 半导体光放大器（SOA）以这样的布置层压在基板上，使得SOA的倾斜表面与fabry-perot激光器的侧表面相对，其用于放大来自fabry的多波长光输出 激光激光 半导体光放大器以增益饱和状态驱动，以减少同时放大的多波长光的通道中的噪声的相对强度。

公开(公告)号：US07209609B2

公开(公告)日：2007-04-24

申请号：US11144949

申请日：2005-06-03

申请人： Dong-Jae Shin ,  Seong-Taek Hwang ,  Dae-Kwang Jung

发明人： Dong-Jae Shin ,  Seong-Taek Hwang ,  Dae-Kwang Jung

IPC分类号： G02B6/26 ,  H04J14/02

CPC分类号： H04B10/506 ,  H04J14/02

摘要： A light source apparatus for use with optical communication using external-injection light sources, and an optical communication system using the light source apparatus. The light source apparatus for optical communication includes external-injection light sources, and a multiplexer/demultiplexer. The multiplexer/demultiplexer provides light components spectrum-sliced broadband light from a broadband light source as respective external injection light inputs. The multiplexer/demultiplexer includes a first waveguide to transmit the broadband light and multiplexed light with a plurality of wavelengths, a plurality of second waveguides each to transmit light with an associated one of the wavelengths, and a plurality of optical filters each to pass light with an associated one of the wavelengths and to reflect the remaining wavelengths. The pass wavelength of each optical filter is set such that insertion loss distribution of the optical filters at the wavelengths is similar to a gain distribution of the injection light sources at the wavelengths.

摘要翻译： 一种用于使用外部注入光源的光通信的光源装置和使用该光源装置的光通信系统。 用于光通信的光源装置包括外部注入光源和多路复用器/解复用器。 多路复用器/解复用器提供来自宽带光源的光分量光谱切片宽带光作为相应的外部注入光输入。 多路复用器/解复用器包括：第一波导，用于传输宽带光和具有多个波长的多路复用光;多个第二波导，每个用于透射具有相关联的一个波长的光;以及多个光学滤光器， 相关联的一个波长并反射剩余的波长。 设置每个滤光器的通过波长，使得波长处的滤光器的插入损耗分布类似于在波长处的注入光源的增益分布。