公开(公告)号：US20070036483A1

公开(公告)日：2007-02-15

申请号：US11502826

申请日：2006-08-10

申请人： Dong-Jae Shin ,  Hyun-Soo Kim ,  Hong-Seok Shin ,  Sung-Bum Park ,  Dae-Kwang Jung ,  Seong-Taek Hwang

发明人： Dong-Jae Shin ,  Hyun-Soo Kim ,  Hong-Seok Shin ,  Sung-Bum Park ,  Dae-Kwang Jung ,  Seong-Taek Hwang

IPC分类号： G02B6/28

CPC分类号： H04J14/02 ,  H04J14/0221 ,  H04J14/0226 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282

摘要： A wavelength-division-multiplexed light source for transmitting broadband light through a fiber and receiving an optical signal through the fiber is disclosed. The wavelength-division-multiplexed light source includes: a light source for outputting broadband light; and a coupler for outputting the broadband light, which has been input from the light source, to the fiber through cross coupling, and outputting an optical signal, which has been input from the fiber, through bar coupling, based on a predetermined cross coupling ratio, wherein the cross coupling ratio of the coupler is adjusted depending on a power of the optical signal.

摘要翻译： 公开了一种用于通过光纤传输宽带光并通过光纤接收光信号的波分复用光源。 波分复用光源包括：用于输出宽带光的光源; 以及耦合器，用于将已经从光源输入的宽带光通过交叉耦合输出到光纤，并且基于预定的交叉耦合比率，通过条形耦合输出已经从光纤输入的光信号 ，其中耦合器的交叉耦合比根据光信号的功率而被调节。

公开(公告)号：US20070014576A1

公开(公告)日：2007-01-18

申请号：US11403757

申请日：2006-04-13

申请人： Sung-Bum Park ,  Seong-Taek Hwang ,  Hyun-Soo Kim ,  Dae-Kwang Jung ,  Hong-Seok Shin ,  Dong-Jae Shin

发明人： Sung-Bum Park ,  Seong-Taek Hwang ,  Hyun-Soo Kim ,  Dae-Kwang Jung ,  Hong-Seok Shin ,  Dong-Jae Shin

IPC分类号： H04J14/02

CPC分类号： H04J14/0216 ,  H04J14/0208

摘要： A bidirectional add/drop multiplexer includes first input/output unit inputs a first optical signal multiplexed from a plurality of odd channels and outputs a second optical signal multiplexed from a plurality of added or dropped even channels; a second input/output unit outputs the first optical signal multiplexed from a plurality of added or dropped odd channels and outputs the second optical signal multiplexed from a plurality of even channels; an optical arrayed waveguide grating for multiplexing added or dropped odd channels of the first optical signal input to a first terminal for subsequent transmission to the second input/output unit, multiplexing added or dropped even channels of the second optical signal input to a second terminal for subsequent transmission to the first input/output unit; and an optical combining unit that amplifies the first optical signal and the second optical signal input from the first input/output unit and the second input/output unit.

摘要翻译： 双向分插复用器包括：第一输入/输出单元输入从多个奇数通道复用的第一光信号，并输出从多个相加或丢弃的偶数通道中复用的第二光信号; 第二输入/输出单元输出从多个相加或丢弃的奇数信道复用的第一光信号，并输出从多个偶数信道复用的第二光信号; 光学阵列波导光栅，用于将第一光信号输入的添加或丢弃的奇数通道复用到第一终端，用于随后传输到第二输入/输出单元，将输入的第二光信号的偶数或偶数的偶数通道复用到第二终端， 随后传输到第一输入/输出单元; 以及光合成单元，其放大从第一输入/输出单元和第二输入/输出单元输入的第一光信号和第二光信号。

公开(公告)号：US20070189772A1

公开(公告)日：2007-08-16

申请号：US11600971

申请日：2006-11-17

申请人： Yoo-Jeong Hyun ,  Dong-Jae Shin ,  Dae-Kwang Jung

发明人： Yoo-Jeong Hyun ,  Dong-Jae Shin ,  Dae-Kwang Jung

IPC分类号： H04J14/00

CPC分类号： H04J14/0226 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0282

摘要： Provided is a hybrid Passive Optical Network (PON) using a wireless communication. The hybrid PON includes a Central Office (CO) for transmitting downstream optical signals, a Remote Node (RN) for performing wavelength division demultiplexing of the downstream optical signals received from the CO and power-splitting each of the demultiplexed downstream optical signals to generate a plurality of downstream optical signals, transmitting the plurality of downstream optical signals to Optical Network Units (ONUs) of a corresponding group, generating a corresponding upstream optical signal modulated with wirelessly received upstream subcarriers of a corresponding group, and transmitting a plurality of generated upstream optical signals to the CO, and ONUs forming a plurality of groups for acquiring downstream subcarriers of a corresponding group from a corresponding downstream optical signal received from the RN, acquiring a corresponding downstream subcarrier by filtering downstream subcarriers of the group, and wirelessly transmitting a corresponding upstream subcarrier to the RN.

摘要翻译： 提供了一种使用无线通信的混合无源光网络（PON）。 混合PON包括用于发送下行光信号的中心局（CO），用于对从CO接收到的下行光信号进行波分解复用的远端节点（RN），并对每个解复用的下行光信号进行功率分配，以产生 多个下行光信号，将多个下行光信号发送到相应组的光网络单元（ONU），产生用无线接收的相应组的上行子载波调制的对应的上行光信号，并发送多个生成的上行光 向CO发送信号，以及ONU形成多个组，用于从从RN接收到的相应下行光信号中获取对应组的下行子载波，通过对该组的下行子载波进行滤波来获取对应的下行子载波，并且无线地发送相应的上行 副载波 到RN。

公开(公告)号：US20060233550A1

公开(公告)日：2006-10-19

申请号：US11406135

申请日：2006-04-18

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： H04J14/02

CPC分类号： H04J14/0226 ,  H04B10/506 ,  H04J14/02 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282 ,  H04J2014/0253

摘要： A wavelength division multiplexed light source for a passive optical network using the same includes broadband light sources arranged at a desired interval on a wavelength axis, so as to output wavelength bands each having a plurality of structural wavelengths. Further included is a main coarse wavelength division multiplexer (M-CWDM) for multiplexing the lights and a dense wavelength division multiplexer (DWDM) for spectrally dividing the multiplexed light into the channels corresponding to structural wavelengths of the multiplexed light. Groups are consequently generated each of which has a plurality of channels spaced at wavelength period.

摘要翻译： 用于使用该波分复用光纤的无源光网络的波分复用光源包括在波长轴上以期望的间隔布置的宽带光源，以输出每个具有多个结构波长的波长带。 还包括用于复用光的主粗略波分多路复用器（M-CWDM）和用于将多路复用光谱分解成与多路复用光的结构波长相对应的通道的密集波分多路复用器（DWDM）。 因此，产生每个具有在波长周期间隔开的多个通道的组。

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。

公开(公告)号：US20060171629A1

公开(公告)日：2006-08-03

申请号：US11341727

申请日：2006-01-27

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： G02B6/28

CPC分类号： H04J14/0226 ,  H04B10/85 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/028 ,  H04J14/0283 ,  H04J2014/0253

摘要： Disclosed is a method for removing cross-talk in a wavelength division multiplexed passive optical network (WDM-PON). The WDM-PON and the method remove cross-talk between adjacent wavelength channels due to incomplete alignment of wavelength channels in a MUX/de-MUX between a central office and a remote node in the WDM-PON employing light-injected light sources. The WDM-PON includes at least two broadband light sources having different bands, which provide injection light to be injected to light-injected channels light sources, a transmitter receiving injection from the broadband light sources, injecting the injection light to odd channel light-injected light sources and even channel light-injected light sources, arraying odd and even channels in such a manner that the odd and even channels belong to different spectrum bands, multiplexing the signal according channels, and transmitting the multiplexed signal. The WDM-PON may also include a receiver for receiving the multiplexed signal transmitted from the transmitter and splitting the multiplexed signal according to the odd and even channels.

摘要翻译： 公开了一种在波分复用无源光网络（WDM-PON）中消除串扰的方法。 由于使用光注入光源的WDM-PON中的中心局和远程节点之间的MUX /解除MUX中的波长信道不完全对准，WDM-PON和该方法消除了相邻波长信道之间的串扰。 WDM-PON包括至少两个具有不同频带的宽带光源，其提供要注入到光注入通道光源的注入光，从宽带光源接收注入的发射器，将注入光注射到注入光的奇数通道 光源甚至通道光注入光源，以奇数和偶数信道属于不同频谱带的方式排列奇数和偶数信道，根据信道复用信号，并发送多路复用信号。 WDM-PON还可以包括用于接收从发射机发送的复用信号的接收机，并根据奇数和偶数信道分离多路复用信号。

公开(公告)号：US07187700B2

公开(公告)日：2007-03-06

申请号：US10730568

申请日：2003-12-08

申请人： Dong-Jae Shin ,  Dae-Kwang Jung ,  Jea-Hyuck Lee ,  Jung-Kee Lee ,  Seong-Taek Hwang ,  Yun-Je Oh

发明人： Dong-Jae Shin ,  Dae-Kwang Jung ,  Jea-Hyuck Lee ,  Jung-Kee Lee ,  Seong-Taek Hwang ,  Yun-Je Oh

IPC分类号： H01S3/13

CPC分类号： H04B10/572 ,  H01S5/4006

摘要： Disclosed is a method for maintaining wavelength-locking of a Fabry-Perot laser regardless of a change of external temperature even though a temperature controller is not used, and a wavelength division multiplexing (WDM) light source using the method, as an economical light source used in a WDM optical communication field. The WDM light source comprises a Fabry-Perot laser for injecting spectrum-spliced incoherent light to amplify and output only an oscillation mode matching with a wavelength of the injected light, and a bias controlling unit for adjusting a bias current supplied to the Fabry-Perot laser to a value adjacent to a threshold current of the Fabry-Perot laser, whose threshold current is changed according to a temperature and a relationship between the injected light changed depending to a temperature and a wavelength of the oscillation mode. Therefore, the bias current having a value adjacent to the threshold current of the Fabry-Perot laser is supplied to the Fabry-Perot laser, so that the Fabry-Perot laser can maintain an excellent transmission characteristic regardless of a change of temperature even though a temperature controller is not used.

摘要翻译： 公开了即使不使用温度控制器也能够保持法布里 - 珀罗激光器的波长锁定的方法，而不管外部温度的变化如何，并且使用该方法作为经济光源的波分复用（WDM）光源 用于WDM光通信领域。 WDM光源包括用于注入频谱拼接的非相干光的法布里 - 珀罗激光器，以放大和仅输出与注入的光的波长匹配的振荡模式;以及偏置控制单元，用于调节提供给法布里 - 珀罗 激光到与Fabry-Perot激光器的阈值电流相邻的值，其阈值电流根据温度改变，并且注入的光随温度变化和振荡模式的波长之间的关系而改变。 因此，具有与法布里 - 珀罗激光器的阈值电流相邻的值的偏置电流被提供给法布里 - 珀罗激光器，使得法布里 - 珀罗激光器可以保持优异的传输特性，而不管温度的变化，即使 温度控制器不使用。

公开(公告)号：US07340173B2

公开(公告)日：2008-03-04

申请号：US10776720

申请日：2004-02-11

申请人： Dong-Jae Shin ,  Dae-Kwang Jung ,  Jea-Hyuck Lee ,  Jung-Kee Lee ,  Jeong-Seok Lee ,  Seong-Taek Hwang ,  Yun-Je Oh

发明人： Dong-Jae Shin ,  Dae-Kwang Jung ,  Jea-Hyuck Lee ,  Jung-Kee Lee ,  Jeong-Seok Lee ,  Seong-Taek Hwang ,  Yun-Je Oh

IPC分类号： H04J14/02 ,  H04J14/00

CPC分类号： H04J14/02 ,  H04B10/506

摘要： A WDM (Wavelength Division Multiplexing) optical transmitter using a Fabry-Perot laser is disclosed. The WDM optical transmitter includes a light source for outputting incoherent light of a prescribed wavelength bandwidth, a circulator having the first to the third ports, for outputting the incoherent light received at the first port coupled to the light source to the second port, and outputting an optical signal received at the second port to the third port coupled to the external waveguide, a WGR (Waveguide Grating Router) having a multiplexing port (MP) coupled to the second port of the circulator and a plurality of demultiplexing ports (DPs), for performing WD (Wavelength Division) demultiplexing on the incoherent light received at the MP to output WD-demultiplexed signals to the plurality of DPs, and performing WD multiplexing on a plurality of channel signals received at the plurality of DPs to output WD-multiplexed signals to the MP, and a plurality of FB (Fabry-Perot) lasers respectively connected to the DPs of the WGR, each FP laser is comprised of a laser cavity, an antireflection coating layer deposited at one end of the laser cavity facing a corresponding DP, and a high reflection coating layer deposited at the other end of the laser cavity, whereby an optical injection efficiency increases and an influence of reflected light is reduced, resulting in facilitation of a wavelength-locked phenomenon.

摘要翻译： 公开了一种使用法布里 - 珀罗激光器的WDM（波分复用）​​光发射机。 WDM光发射机包括用于输出规定波长带宽的非相干光的光源，具有第一至第三端口的循环器，用于将耦合到光源的第一端口处接收到的非相干光输出到第二端口，并输出 在第二端口处接收到耦合到外部波导的第三端口的光信号，具有耦合到循环器的第二端口的复用端口（MP）的WGR（波导光栅路由器）和多个解复用端口（DP） 用于对在MP处接收到的非相干光进行WD（波分）解复用，以将WD分离的信号输出到多个DP，并且对在多个DP上接收的多个信道信号执行WD复用以输出WD复用信号 MP和分别连接到WGR的DP的多个FB（Fabry-Perot）激光器，每个FP激光器由激光腔，抗雷 在激光腔的面对相应的DP的一端沉积的吸收层，以及沉积在激光腔的另一端的高反射涂层，由此光注入效率增加并且反射光的影响减小，导致促进 的波长锁定现象。

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：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。