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11. 发明授权

US08116628B2 Wavelength-division multiplexed passive optical network for embodying wavelength-independent operation of wavelength-locked Fabry-Perot laser diodes by injecting a low noise broadband light source 有权
标题翻译：波分复用无源光网络，用于通过注入低噪声宽带光源实现波长锁定法布里 - 珀罗激光二极管的波长独立运行
公开(公告)号：US08116628B2
公开(公告)日：2012-02-14
申请号：US12087723
申请日：2006-07-11
申请人： Chang-Hee Lee , Ki-Man Choi
发明人： Chang-Hee Lee , Ki-Man Choi
IPC分类号： H04J14/02
CPC分类号： H04J14/0226 , H04B10/506 , H04J14/02 , H04J14/0246 , H04J14/025 , H04J14/0282 , H04J2014/0253
摘要： The present invention relates to a wavelength-division multiplexed passive optical network (WDM-PON) which embodies wavelength-independence of wavelength-locked Fabry Perot-Laser Diode (F-P LD). A WDM-PON of the present invention comprises an optical fiber being used for optical transmission to and from a broadband light source (BLS) with a low noise characteristic; first arrayed waveguide Gratings (AWG) for filtering light transmitted from the BLS which is oscillated in a plural mode into a group of n numbers wherein the first AWG have a bandwidth broader than a bandwidth of one mode of the BLS; n F-P LDs outputting wavelength-locked light by light being injected through the first AWG; a circulator bypassing and outputting wavelength-division multiplexed signals which are inputted through the first AWG and the optical fiber; and second AWG de-multiplexing the WDM signals into a group of n numbers wherein the second AWG have a bandwidth broader than the bandwidth of the BLS to be injected, wherein the number n is either the number of output ports of the first or second AWG or the number of channels of the WDM signals.
摘要翻译：波分复用无源光网络（WDM-PON）技术领域本发明涉及一种实现波长锁定法布里珀罗激光二极管（F-P LD）的波长独立性的波分复用无源光网络（WDM-PON）。本发明的WDM-PON包括用于向具有低噪声特性的宽带光源（BLS）进行光传输的光纤; 第一阵列波导光栅（AWG），用于滤波从多个模式振荡的BLS发射的光，其中第一AWG具有比BLS的一种模式的带宽宽的带宽; n个F-P LD，通过第一AWG注入的光输出波长锁定的光; 绕过并输出通过第一AWG和光纤输入的波分复用信号的循环器; 并且第二AWG将WDM信号解复用为n个数组，其中第二AWG具有比要注入的BLS的带宽更宽的带宽，其中数量n是第一或第二AWG的输出端口的数量或WDM信号的通道数。

12. 发明授权

US07936994B2 Broadband light source using fabry perot laser diodes 有权
标题翻译：宽带光源采用fabry perot激光二极管
公开(公告)号：US07936994B2
公开(公告)日：2011-05-03
申请号：US11575604
申请日：2004-12-22
申请人： Chang-Hee Lee , Jin-serk Baik , Ki-Man Choi , Hyun-Sik Min , Keun-Youl Park
发明人： Chang-Hee Lee , Jin-serk Baik , Ki-Man Choi , Hyun-Sik Min , Keun-Youl Park
IPC分类号： H04J14/02
CPC分类号： H01S5/4006 , H01S5/005 , H01S5/0064 , H01S5/0427 , H01S5/0612 , H01S5/0656 , H01S5/4068
摘要： Disclosed is a broadband light source (BLS) necessary to implement wavelength-locked Fabry-Perot (FP) laser diodes (LDs) applicable to an optical subscriber network The BLS is based on a method using mutual injection of low-cost FP LDs and a method using FP LDs undergoing chirping. A power level of a light emitting diodes (LED), an erbium-doped fiber amplifier (EDFA), or a super luminescent diode (SLD) used as the conventional BLS is low and its cost is high, such that the conventional BLS is inefficient. However, the present invention can easily implement a low-cost BLS using proposed FP LDs.
摘要翻译：公开了实现适用于光用户网络的波长锁定法布里 - 珀罗（FP）激光二极管（LD）所必需的宽带光源（BLS）.BLS基于使用低成本FP LD的相互注入和方法使用FP LD进行啁啾。作为常规BLS使用的发光二极管（LED），掺铒光纤放大器（EDFA）或超发光二极管（SLD）的功率电平低，成本高，从而传统的BLS效率低下。然而，本发明可以容易地实现使用提出的FP LD的低成本BLS。

13. 发明申请

US20090196612A1 Optical modulation method and system in wavelength locked fp-ld by injecting broadband light source using mutually injected fp-ld 有权
标题翻译：通过使用相互注入的fp-ld注入宽带光源，在波长锁定fp-ld中的光调制方法和系统
公开(公告)号：US20090196612A1
公开(公告)日：2009-08-06
申请号：US11665902
申请日：2005-11-08
申请人： Chang-Hee Lee , Ki-Man Choi
发明人： Chang-Hee Lee , Ki-Man Choi
IPC分类号： H04J14/00 , H04B10/04
CPC分类号： H04B10/5167 , H04B10/503 , H04B10/5162
摘要： The present invention relates to an optical modulation method and optical modulation system of a wavelength locked Fabry Perot-Laser Diode (FP-LD) by injecting a broadband light source (BLS) using mutual injection of FP-LDs. More specifically, the present invention relates to a novel modulation technology which embodies a wavelength locked FP-LD capable of being used as an economic light source in an optical network based on a wavelength-division multiplexing passive optical network (WDM-PON). According to the present invention, a light modulation system is suggested comprising: BLS being constructed by mutual injection between two FP-LDs and an optical fiber being used for light transmission; first AWG for filtering light from a plurality of oscillation modes of the BLS into n group; n FP-LDs outputting wavelength locked light which is divided through the first AWG; an encoder being provided at a transmitting end of a subscriber to which the output from the first AWG is transmitted; a circulator outputting light which is inputted through the first AWG; second AWG de-multiplexing WDM signals from the first AWG into n group; and a decoder being provided at a receiving end to which the output from the second AWG is transmitted. Therefore, the present invention makes it possible to provide a more economic light source for WDM-PON subscribers by embodying a wavelength locked FP-LD by injecting a low-cost BLS.
摘要翻译：本发明涉及通过使用相互注入FP-LD注入宽带光源（BLS）的波长锁定法布里珀罗激光二极管（FP-LD）的光调制方法和光调制方式。更具体地说，本发明涉及一种新颖的调制技术，它体现了一种能够在基于波分复用无源光网络（WDM-PON）的光网络中用作经济光源的波长锁定FP-LD。根据本发明，提出了一种光调制系统，其包括：BLS通过两个FP-LD之间的相互注入和用于光透射的光纤构成; 将来自BLS的多个振荡模式的光过滤成n组的第一AWG; n个FP-LD，输出通过第一AWG划分的波长锁定光; 编码器被提供在用户的发送端，来自第一AWG的输出被发送到该编码器; 输出通过第一AWG输入的光的循环器; 第二AWG将WDM信号从第一AWG解复用为n组; 并且解码器被提供在从第二AWG的输出发送到的接收端。因此，本发明通过注入低成本的BLS来实现波长锁定的FP-LD，可以为WDM-PON用户提供更经济的光源。

14. 发明申请

US20120051749A1 WAVELENGTH DIVISION MULTIPLEXED-PASSIVE OPTICAL NETWORK CAPABLE OF HIGH-SPEED TRANSMISSION OF AN OPTICAL SIGNAL BY USING MODULATION FORMAT HAVING HIGH SPECTRAL EFFICIENCY 有权
标题翻译：通过使用具有高光谱效率的调制格式，可以高速传输光信号的波长段多路径无源光网络
公开(公告)号：US20120051749A1
公开(公告)日：2012-03-01
申请号：US13288289
申请日：2011-11-03
申请人： Chang-Hee Lee , Ki-Man Choi , Sil-Gu Mun , Jung-Hyung Moon
发明人： Chang-Hee Lee , Ki-Man Choi , Sil-Gu Mun , Jung-Hyung Moon
IPC分类号： H04J14/02
CPC分类号： H04L12/66
摘要： The present invention discloses a wavelength-division multiplexing passive optical network (WDM-PON) capable of high-bandwidth transmission for optical signals by using modulation format having high spectral efficiency. The WDM-PON according to the present invention provides a larger capacity and higher bandwidth transmission economically (at lower costs) by using a modulation format where spectral efficiency (a transmission bit number per a unit band width) is high, while using a low noise part of a light source.
摘要翻译：本发明公开了通过使用具有高频谱效率的调制格式，能够对光信号进行高带宽传输的波分复用无源光网络（WDM-PON）。根据本发明的WDM-PON通过使用其中频谱效率（每单位带宽的传输比特数）高的调制格式，以较低的成本在经济上（以较低的成本）提供了更大的容量和更高带宽的传输，同时使用低噪声光源的一部分。

15. 发明授权

US07773838B2 Method and network architecture for upgrading legacy passive optical network to wavelength division multiplexing passive optical network based next-generation passive optical network 有权
标题翻译：将传统无源光网络升级为波分复用无源光网络的下一代无源光网络的方法和网络架构
公开(公告)号：US07773838B2
公开(公告)日：2010-08-10
申请号：US12513741
申请日：2006-11-14
申请人： Chang-Hee Lee , Ki-Man Choi , Sil-Gu Mun , Jung-Hyung Moon , Hoon-Keun Lee
发明人： Chang-Hee Lee , Ki-Man Choi , Sil-Gu Mun , Jung-Hyung Moon , Hoon-Keun Lee
IPC分类号： G02B6/28
CPC分类号： H04J14/02 , H04J14/0201 , H04J14/0226 , H04J14/0227 , H04J14/0247 , H04J14/0252 , H04J14/0282 , H04J2014/0253
摘要： The present invention discloses a network architecture for upgrading a legacy time division multiplexing-passive optical network (TDM-PON) to a wavelength division multiplexing-passive optical network (WDM-PON) based next-generation passive optical network (next-generation PON), wherein the legacy TDM-PON comprises: a central office (CO) having a first optical line termination (OLT); a remote node (RN) having a splitter; a single mode fiber (SMF) connecting the first OLT and the splitter; and a first group of one or more optical network terminations (ONTs) being connected to the splitter by a first group of one or more distribution fibers, and wherein the network architecture further comprises: in case that the next-generation PON is a WDM-PON, a first apparatus for combining and splitting wavelength bands being positioned between the SMF and the first OLT, in order to add a second OLT to be used for the WDM-PON within the CO or within another CO which is located in a position different from the CO, while sharing the SMF; a second apparatus for combining and splitting wavelength bands being positioned at a front terminal of the splitter; and an arrayed waveguide grating (AWG) being connected to the second apparatus for combining and splitting wavelength bands within the RN, and being connected to a second group of one or more ONTs by a second group of one or more distribution fibers within the RN or within another RN which is located in a position different from the RN.
摘要翻译：本发明公开了一种用于将传统时分复用无源光网络（TDM-PON）升级为基于波分多路复用无源光网络（WDM-PON）的下一代无源光网络（下一代PON）的网络架构，，其中所述传统TDM-PON包括：具有第一光线路终端（OLT）的中心局（CO）; 具有分离器的远程节点（RN）; 连接第一OLT和分离器的单模光纤（SMF）; 以及由第一组一个或多个分配光纤连接到分离器的第一组一个或多个光网络终端（ONT），并且其中所述网络架构还包括：在下一代PON是WDM- PON是用于组合和分离位于SMF和第一OLT之间的波长带的第一装置，以便添加用于CO内的WDM-PON或位于不同位置的另一CO内的WDM-PON的第二OLT 从CO共享SMF; 用于组合和分离位于分离器的前端的波长带的第二装置; 和连接到第二装置的阵列波导光栅（AWG），用于组合和分离RN内的波段，并且由RN内的一个或多个分配光纤的第二组连接到一个或多个ONT的第二组，或者位于与RN不同的位置的另一RN内。

16. 发明申请

US20100054740A1 METHOD AND NETWORK ARCHITECTURE FOR UPGRADING LEGACY PASSIVE OPTICAL NETWORK TO WAVELENGTH DIVISION MULTIPLEXING PASSIVE OPTICAL NETWORK BASED NEXT-GENERATION PASSIVE OPTICAL NETWORK 有权
标题翻译：用于将LEGACY被动光网络升级为波长段的方法和网络架构多路复用基于无源光网络的下一代被动光网络
公开(公告)号：US20100054740A1
公开(公告)日：2010-03-04
申请号：US12513741
申请日：2006-11-14
申请人： Chang-Hee Lee , Ki-Man Choi , Sil-Gu Mun , Jung-Hyung Moon , Hoon-Keun Lee
发明人： Chang-Hee Lee , Ki-Man Choi , Sil-Gu Mun , Jung-Hyung Moon , Hoon-Keun Lee
IPC分类号： H04J14/00 , H04J14/08 , H04J14/02
CPC分类号： H04J14/02 , H04J14/0201 , H04J14/0226 , H04J14/0227 , H04J14/0247 , H04J14/0252 , H04J14/0282 , H04J2014/0253
摘要： The present invention discloses a network architecture for upgrading a legacy time division multiplexing-passive optical network (TDM-PON) to a wavelength division multiplexing-passive optical network (WDM-PON) based next-generation passive optical network (next-generation PON), wherein the legacy TDM-PON comprises: a central office (CO) having a first optical line termination (OLT); a remote node (RN) having a splitter; a single mode fiber (SMF) connecting the first OLT and the splitter; and a first group of one or more optical network terminations (ONTs) being connected to the splitter by a first group of one or more distribution fibers, and wherein the network architecture further comprises: in case that the next-generation PON is a WDM-PON, a first apparatus for combining and splitting wavelength bands being positioned between the SMF and the first OLT, in order to add a second OLT to be used for the WDM-PON within the CO or within another CO which is located in a position different from the CO, while sharing the SMF; a second apparatus for combining and splitting wavelength bands being positioned at a front terminal of the splitter; and an arrayed waveguide grating (AWG) being connected to the second apparatus for combining and splitting wavelength bands within the RN, and being connected to a second group of one or more ONTs by a second group of one or more distribution fibers within the RN or within another RN which is located in a position different from the RN.
摘要翻译：本发明公开了一种用于将传统时分复用无源光网络（TDM-PON）升级为基于波分多路复用无源光网络（WDM-PON）的下一代无源光网络（下一代PON）的网络架构，，其中所述传统TDM-PON包括：具有第一光线路终端（OLT）的中心局（CO）; 具有分离器的远程节点（RN）; 连接第一OLT和分离器的单模光纤（SMF）; 以及由第一组一个或多个分配光纤连接到分离器的第一组一个或多个光网络终端（ONT），并且其中所述网络架构还包括：在下一代PON是WDM- PON是用于组合和分离位于SMF和第一OLT之间的波长带的第一装置，以便添加用于CO内的WDM-PON或位于不同位置的另一CO内的WDM-PON的第二OLT 从CO共享SMF; 用于组合和分离位于分离器的前端的波长带的第二装置; 和连接到第二装置的阵列波导光栅（AWG），用于组合和分离RN内的波段，并且由RN内的一个或多个分配光纤的第二组连接到一个或多个ONT的第二组，或者位于与RN不同的位置的另一RN内。

17. 发明申请

US20080232807A1 Wavelength Division Multiplexed-Passive Optical Network Capable of High-Speed Transmission of an Optical Signal By Using Modulation Format Having High Spectral Efficiency 有权
标题翻译：波分复用无源光网络，能够通过使用具有高光谱效率的调制格式高速传输光信号
公开(公告)号：US20080232807A1
公开(公告)日：2008-09-25
申请号：US12064229
申请日：2006-11-14
申请人： Chang-Hee Lee , Ki-Man Choi , Sil-Gu Mun , Jung-Hyung Moon
发明人： Chang-Hee Lee , Ki-Man Choi , Sil-Gu Mun , Jung-Hyung Moon
IPC分类号： H04J14/02
CPC分类号： H04L12/66
摘要： The present invention discloses a wavelength-division multiplexing passive optical network (WDM-PON) capable of high-bandwidth transmission for optical signals by using modulation format having high spectral efficiency. The WDM-PON according to the present invention provides a larger capacity and higher bandwidth transmission economically (at lower costs) by using a modulation format where spectral efficiency (a transmission bit number per a unit band width) is high, while using a low noise part of a light source.
摘要翻译：本发明公开了通过使用具有高频谱效率的调制格式，能够对光信号进行高带宽传输的波分复用无源光网络（WDM-PON）。根据本发明的WDM-PON通过使用其中频谱效率（每单位带宽的传输比特数）高的调制格式，以较低的成本在经济上（以较低的成本）提供了更大的容量和更高带宽的传输，同时使用低噪声光源的一部分。

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