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1. 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。

2. 发明申请

US20080131127A1 Broadband Light Source Using Fabry Perot Laser Diodes 有权
标题翻译：宽带光源使用法布里珀罗激光二极管
公开(公告)号：US20080131127A1
公开(公告)日：2008-06-05
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： G02B27/28 , H01S5/00 , H01S3/10 , H01S3/13
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。

3. 发明授权

US06728026B2 Dynamically tunable optical amplifier and fiber optic light source 失效
标题翻译：动态可调光放大器和光纤光源
公开(公告)号：US06728026B2
公开(公告)日：2004-04-27
申请号：US09942457
申请日：2001-08-29
申请人： Chang-Hee Lee , Byoung Yoon Kim , Seok Hyun Yun , Hyo Sang Kim , Jin-Serk Baik , Kun-Youl Park , Wayne V. Sorin
发明人： Chang-Hee Lee , Byoung Yoon Kim , Seok Hyun Yun , Hyo Sang Kim , Jin-Serk Baik , Kun-Youl Park , Wayne V. Sorin
IPC分类号： H01S300
CPC分类号： H04B10/2941 , H01S3/06758 , H01S3/1301 , H01S3/302 , H01S2301/04 , H04B10/296 , H04B2210/003
摘要： An optical amplifier comprises a wavelength tunable filter, one or more optical gain stages, and a controller for controlling a spectral profile of the wavelength tunable filter in response to a measured spectral characteristic of the amplifier. The controller may also control gain of the gain stage(s). The controller determines the filter spectral profile necessary to obtain a desired amplifier spectral characteristic. The spectral characteristic may, for example, be a power spectral output of the amplifier or a gain profile of the amplifier. The amplifier may incorporate a dispersion compensator. The controller may control a spectral profile of the wavelength tunable filter and gain of the dispersion compensator. A tunable fiber light source is also described.
摘要翻译：光学放大器包括波长可调滤波器，一个或多个光学增益级和用于响应于所测量的放大器的光谱特性来控制波长可调谐滤波器的光谱分布的控制器。控制器还可以控制增益级的增益。控制器确定获得所需放大器频谱特性所需的滤波器频谱分布。频谱特性可以例如是放大器的功率谱输出或放大器的增益曲线。放大器可以并入色散补偿器。控制器可以控制波长可调滤波器的谱分布和色散补偿器的增益。还描述了可调光纤光源。

4. 发明申请

US20090185807A1 Wavelength Division Multiplexing Passive Optical Network for Providing Both of Broadcasting Service and Communication Service and Central Office Used Thereof 有权
标题翻译：用于提供广播业务和通信业务的波分复用无源光网络及其使用的中心局
公开(公告)号：US20090185807A1
公开(公告)日：2009-07-23
申请号：US11992243
申请日：2006-09-19
申请人： Chang-Hee Lee , Jung-Hyung Moon , Ki-Man Choi
发明人： Chang-Hee Lee , Jung-Hyung Moon , Ki-Man Choi
IPC分类号： H04J14/02
CPC分类号： H04J14/0226 , H04B10/506 , H04B10/572 , H04J14/0232 , H04J14/0246 , H04J14/025 , H04J14/0282
摘要： Disclosed is a wavelength division multiplexing passive optical network for simultaneously providing a broadcasting service and a data service by employing a broadband light source, which uses mutually injected Fabry-Perot laser diodes, as well as a central office used for the same.
摘要翻译：公开了一种波分复用无源光网络，用于通过采用使用相互注入的法布里 - 珀罗激光二极管的宽带光源以及用于其的中心局同时提供广播服务和数据服务。

5. 发明申请

US20110255860A1 FAULT LOCALIZATION METHOD AND A FAULT LOCALIZATION APPARATUS IN A PASSIVE OPTICAL NETWORK AND A PASSIVE OPTICAL NETWORK HAVING THE SAME 审中-公开
标题翻译：无源光网络中的故障本地化方法和故障本地化设备及其相应的被动光网络
公开(公告)号：US20110255860A1
公开(公告)日：2011-10-20
申请号：US13123211
申请日：2009-10-09
申请人： Chang-Hee Lee , Jong-Hoon Lee , Ki-Man Choi , Sil-Gu Mun , Jung-Hyung Moon , Jung-eun Moon , Hoon-Keun Lee , Joon-Young Kim , Sang-Min Oh
发明人： Chang-Hee Lee , Jong-Hoon Lee , Ki-Man Choi , Sil-Gu Mun , Jung-Hyung Moon , Jung-eun Moon , Hoon-Keun Lee , Joon-Young Kim , Sang-Min Oh
IPC分类号： H04B10/08 , H04B17/00
CPC分类号： H04B10/0771 , G01M11/3136 , H04B10/071
摘要： The present invention discloses a fault localization method and a fault localization apparatus in a Passive Optical Network (PON) and a passive optical network having the same.A fault localization method in PON according to the present invention comprises a) configuring an optical path of a remote node (RN) selectively by electric power being fed temporarily only when necessary, while the PON is regularly being operated as a passive network; and b) detecting a fault occurring on the selectively configured optical path by inserting a monitoring signal of an OTDR unit, which is positioned in a central office (CO), through the selectively configured optical path.
摘要翻译：本发明公开了一种无源光网络（PON）中的故障定位方法和故障定位装置以及具有该故障定位方法的无源光网络。根据本发明的PON中的故障定位方法包括：a）通过仅在需要时临时馈送的电力来选择性地配置远程节点（RN）的光路，同时PON被定期地作为被动网络操作; 以及b）通过选择性地配置的光路插入位于中心局（CO）中的OTDR单元的监视信号来检测选择性配置的光路上发生的故障。

6. 发明申请

US20100290782A1 REMOTE NODE CONFIGURATION FOR PROVIDING UPGRADED SERVICES IN A PASSIVE OPTICAL NETWORK AND A PASSIVE OPTICAL NETWORK HAVING THE SAME 审中-公开
标题翻译：用于在被动光网络中提供升级服务的远程节点配置和具有相同功能的被动光网络
公开(公告)号：US20100290782A1
公开(公告)日：2010-11-18
申请号：US12681551
申请日：2007-10-10
申请人： Chang-Hee Lee , Jong-Hoon Lee , Ki-Man Choi , Sil-Gu Mun , Jung-Hyung Moon , Hoon-Keun Lee
发明人： Chang-Hee Lee , Jong-Hoon Lee , Ki-Man Choi , Sil-Gu Mun , Jung-Hyung Moon , Hoon-Keun Lee
IPC分类号： H04J14/00 , H04L12/28
CPC分类号： H04B10/807 , H04B10/272 , H04J14/0282 , H04Q11/0005 , H04Q11/0067 , H04Q2011/0009 , H04Q2011/0015 , H04Q2011/0069 , H04Q2011/0079 , H04Q2011/0081
摘要： The present invention discloses a remote node (RN) configuration for providing an enhanced service in a passive optical network and a passive optical network (PON) having the same. In an RN configuration for providing a new service in a PON according to the present invention, it is possible to configure the RN remotely by instantaneous powering from a remote site only when necessary, while the RN being operated as a PON at ordinary times. More specifically, an RN configuration for providing a new service in a PON according to the present invention includes a power generation block capable of providing energy necessary for activating the RN by instantaneously supplied power from the remote site. Further, an RN according to the present invention further includes either one or both of a control agent block capable of controlling and managing optical paths of the RN by using power generated from the power generation block; and a reconfigurable switching block capable of configuring and switching the optical path of the RN through the power being provided from the power generation block and a control by the control agent block.
摘要翻译：本发明公开了一种用于在无源光网络中提供增强业务的远程节点（RN）配置和具有该远程节点（RN）的无源光网络（PON）。在根据本发明的用于在PON中提供新服务的RN配置中，可以仅在必要时从远程站点通过即时供电来远程配置RN，而RN在正常时间作为PON操作。更具体地，根据本发明的用于在PON中提供新业务的RN配置包括能够提供通过从远程站点的即时提供的功率来激活RN所需的能量的发电块。此外，根据本发明的RN还包括能够通过使用从发电块产生的电力来控制和管理RN的光路的控制代理块中的一个或两个; 以及能够通过从发电块提供的功率和由控制代理块的控制来配置和切换RN的光路的可重构切换块。

7. 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。

8. 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。

9. 发明授权

US08442400B2 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频谱效率的调制格式高速传输光信号
公开(公告)号：US08442400B2
公开(公告)日：2013-05-14
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： H04J14/00
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。

10. 发明授权

US08290370B2 Wavelength division multiplexing passive optical network for providing both of broadcasting service and communication service and central office used thereof 有权
标题翻译：波分复用无源光网络，用于提供广播服务和通信服务以及使用的中心局
公开(公告)号：US08290370B2
公开(公告)日：2012-10-16
申请号：US11992243
申请日：2006-09-19
申请人： Chang-Hee Lee , Jung-Hyung Moon , Ki-Man Choi
发明人： Chang-Hee Lee , Jung-Hyung Moon , Ki-Man Choi
IPC分类号： H04J14/00
CPC分类号： H04J14/0226 , H04B10/506 , H04B10/572 , H04J14/0232 , H04J14/0246 , H04J14/025 , H04J14/0282
摘要： Disclosed is a wavelength division multiplexing passive optical network for simultaneously providing a broadcasting service and a data service by employing a broadband light source, which uses mutually injected Fabry-Perot laser diodes, as well as a central office used for the same.
摘要翻译：公开了一种波分复用无源光网络，用于通过采用使用相互注入的法布里 - 珀罗激光二极管的宽带光源以及用于其的中心局同时提供广播服务和数据服务。

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