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1. 发明申请

US20060222365A1 SCM-PON using WDM 审中-公开
标题翻译： SCM-PON使用WDM
公开(公告)号：US20060222365A1
公开(公告)日：2006-10-05
申请号：US11395099
申请日：2006-03-31
申请人： Dae-Kwang Jung , Seong-Taek Hwang , Yun-Je Oh , Jin-Woo Park , Il-Rae Kim
发明人： Dae-Kwang Jung , Seong-Taek Hwang , Yun-Je Oh , Jin-Woo Park , Il-Rae Kim
IPC分类号： H04J14/00
CPC分类号： H04J14/0226 , H04J14/0247 , H04J14/0252 , H04J14/0282 , H04J14/0298
摘要： A SCM-PON using WDM includes: an OLT for transferring downstream data from an external service provider through downstream optical signals and transferring upstream data transferred through upstream optical signals to an outside; an ODN for distributing the downstream optical signals from the OLT and multiplexing the upstream optical signals to the OLT; and a plurality of ONUs for processing the downstream optical signals transferred from the OLT through the ODN and transferring upstream data of subscribers for the OLT through the upstream optical signals, wherein the optical signals between the OLT and the ONUs are divided into wavelength channels with different wavelengths and sub-carrier channels obtained by time-dividing the wavelength channels, and the upstream data and the downstream data are transferred through the sub-carrier channels.
摘要翻译：使用WDM的SCM-PON包括：OLT，用于通过下行光信号从外部服务提供商传送下行数据，并将通过上行光信号传送的上行数据传送到外部; 用于分配来自OLT的下行光信号并将上行光信号复用到OLT的ODN; 以及多个ONU，用于处理从OLT通过ODN传送的下行光信号，并通过上行光信号传输OLT的用户的上行数据，其中OLT和ONU之间的光信号被分成不同的波长信道通过时分波长信道获得的波长和子载波信道，并且上行数据和下行数据通过子载波信道传送。

2. 发明申请

US20060115271A1 Method for operating wavelength-division-multiplexed passive optical network 审中-公开
标题翻译：用于操作波分复用无源光网络的方法
公开(公告)号：US20060115271A1
公开(公告)日：2006-06-01
申请号：US11058793
申请日：2005-02-16
申请人： Seong-Taek Hwang , Yun-Je Oh , Dae-Kwang Jung , Jin-Woo Park , Sung-Kuen Lee , Yong-Won Lee , Sang-Rok Lee , Sang-Mo Hong
发明人： Seong-Taek Hwang , Yun-Je Oh , Dae-Kwang Jung , Jin-Woo Park , Sung-Kuen Lee , Yong-Won Lee , Sang-Rok Lee , Sang-Mo Hong
IPC分类号： H04J14/00
CPC分类号： H04J14/0227 , H04J14/0226 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0282
摘要： Disclosed is a method for operating a wavelength-division-multiplexed passive optical network (WDM-PON) including an optical line terminal (OLT) and a plurality of optical network units (ONUs), each of which is connected to the OLT and communicates with the OLT. The method comprises the steps of transmitting a first control channel including allocation information of downstream data channels and allocation information of time slots for the downstream data channels to each of the plurality of ONUs; and transmitting downstream data to the plurality of ONUs using their associated downstream data channels, each having at least one time slot, based on the information included in the first control channel.
摘要翻译：公开了一种用于操作包括光线路终端（OLT）和多个光网络单元（ONU）的波分复用无源光网络（WDM-PON）的方法，每个光网络单元（ONU）连接到OLT并与 OLT。该方法包括以下步骤：向多个ONU中的每一个发送包括下行数据信道的分配信息的第一控制信道和用于下行数据信道的时隙的分配信息; 以及基于包括在所述第一控制信道中的信息，使用其相关联的下游数据信道向所述多个ONU发送下行数据，每个ONU具有至少一个时隙。

3. 发明授权

US07187700B2 Method for maintaining wavelength-locking of Fabry-Perot laser regardless of change of external temperature and WDM light source using the method 失效
标题翻译：不管外部温度和WDM光源的变化如何，使用该方法维持法布里 - 珀罗激光器的波长锁定的方法
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。

4. 发明申请

US20050074240A1 Wavelength-division-multiplexed passive optical network system using wavelength-seeded light source 审中-公开
标题翻译：使用波长种子光源的波分复用无源光网络系统
公开(公告)号：US20050074240A1
公开(公告)日：2005-04-07
申请号：US10778426
申请日：2004-02-13
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： H04B10/24 , H04B10/207 , H04J14/02 , H04J14/00
CPC分类号： H04J14/0226 , H04J14/02 , H04J14/0246 , H04J14/025 , H04J14/0282
摘要： An economical wavelength-division-multiplexed passive optical network (WDM-PON) system is realized by directly modulating a wavelength-seeded light source to transmit upstream or downstream data, without using an expensive external modulator. A multiplexed signal having the same wavelength as the waveguide grating is generated and used to control the temperature of the waveguide grating and adjust the wavelength of a wavelength-division-multiplexed signal routed to a transfer link. The wavelength selectivity and stabilization of each light source are not required. Since upstream and downstream signals can be multiplexed and demultiplexed concurrently by each waveguide grating located in the central office and the remote node, it is possible to reduce the number of waveguide gratings used in a WDM optical network. In addition, upstream and downstream signals can be transmitted concurrently using a single-strand transfer optical fiber, thereby realizing an economical and efficient WDM-PON.
摘要翻译：通过直接调制波长种子光源来传输上游或下游数据，实现了经济的波分复用无源光网络（WDM-PON）系统，而不需要昂贵的外部调制器。产生具有与波导光栅相同波长的多路复用信号，并用于控制波导光栅的温度并调节路由到传输链路的波分复用信号的波长。不需要每个光源的波长选择性和稳定性。由于可以通过位于中心局和远程节点中的每个波导光栅同时复用和解复用上游和下行信号，所以可以减少在WDM光网络中使用的波导光栅的数量。此外，可以使用单股传输光纤同时传输上行和下行信号，从而实现经济高效的WDM-PON。

5. 发明申请

US20050047785A1 Bi-directional wavelength division multiplexing passive optical network and method for allocating wavelength band 审中-公开
标题翻译：双向波分复用无源光网络和波长带分配方法
公开(公告)号：US20050047785A1
公开(公告)日：2005-03-03
申请号：US10818194
申请日：2004-04-05
申请人： Seong-Taek Hwang , Dae-Kwang Jung , Hoon Kim , Yun-Je Oh , Chang-Sup Shim
发明人： Seong-Taek Hwang , Dae-Kwang Jung , Hoon Kim , Yun-Je Oh , Chang-Sup Shim
IPC分类号： G02B6/42 , H04B10/00 , H04B10/272 , H04J14/00 , H04J14/02 , H04L12/28 , H04L12/44
CPC分类号： H04J14/0282 , G02B6/4246 , H04J14/0226 , H04J14/0246 , H04J14/025 , H04J2014/0253
摘要： A bi-directional WDM-PON and a method for allocating a wavelength band are disclosed. In the bi-directional WDM-PON, bi-directional transceiver modules are used to transmit optical signals of different wavelengths in the upstream and downstream directions. An L-band and an S-band are used to allocate wavelength bands to the upstream and downstream optical signals so that a wavelength band interval at which the respective wavelength bands of the upstream and downstream optical signals are spaced is set between 50 nm to 150 nm.
摘要翻译：公开了双向WDM-PON和分配波长带的方法。在双向WDM-PON中，双向收发模块用于在上行和下行方向传输不同波长的光信号。使用L波段和S波段将波长带分配给上游和下游光信号，使得上游和下游光信号的相应波长带间隔开的波长带间隔设置在50nm至150nm nm。

6. 发明申请

US20050025484A1 Wavelength-division-multiplexed passive optical network using multi-wavelength lasing source and reflective optical amplification means 审中-公开
标题翻译：波分复用无源光网络采用多波长激光源和反射光放大手段
公开(公告)号：US20050025484A1
公开(公告)日：2005-02-03
申请号：US10781006
申请日：2004-02-18
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 , H04B10/27 , H04B10/272 , H04B10/54 , H04B10/572 , H04J14/02
CPC分类号： H04B10/2587 , H04J14/02 , H04J14/0226 , H04J14/0232 , H04J14/0246 , H04J14/025 , H04J14/0282 , H04J2014/0253
摘要： A wavelength-division-multiplexed passive optical network using an economical multi-wavelength lasing source and a reflective optical amplification device is disclosed. The wavelength-division-multiplexed passive optical network includes a central office in which a multi-wavelength lasing source is located; a plurality of subscriber terminals for transmitting an upward signal by a refection signal of a multi-wavelength signal transmitted from the central office; and a local office, which is connected among the central office and the subscriber terminals through transmission optical fibers, for demultiplexing the multi-wavelength signal transmitted from the central office and transmitting the demultiplexed signal to the subscriber terminals, and for multiplexing signals inputted from each of the subscriber terminals and transmitting the multiplexed signals to the central office.
摘要翻译：公开了一种使用经济的多波长激光源和反射光放大装置的波分复用无源光网络。波分复用无源光网络包括多波长激光源所在的中心局; 多个用户终端，用于通过从中心局发送的多波长信号的反射信号发送上行信号; 以及通过发送光纤连接在中心局和用户终端之间的本地办公室，用于对从中心局发送的多波长信号进行解复用，并将解复用的信号发送到用户终端，并且用于复用从每个并将复用的信号发送到中心局。

7. 发明授权

US07295778B2 Wavelength division multiplexed passive optical network system 有权
标题翻译：波分复用无源光网络系统
公开(公告)号：US07295778B2
公开(公告)日：2007-11-13
申请号：US10713393
申请日：2003-11-14
申请人： Jea-Hyuck Lee , Seong-Taek Hwang , Yun-Je Oh , Dae-Kwang Jung
发明人： Jea-Hyuck Lee , Seong-Taek Hwang , Yun-Je Oh , Dae-Kwang Jung
IPC分类号： H04J14/00
CPC分类号： H04J14/0282 , H04B10/2503 , H04B10/40 , H04J14/02 , H04J14/0226 , H04J14/0246 , H04J14/025 , H04Q11/0067 , H04Q2011/0016
摘要： Disclosed is a wavelength division multiplexed passive optical network (WDM PON) system including a central office, a remote Node, and an optical fiber coupled between the central office and the remote node, wherein the central office includes an optical power splitter coupled to the optical fiber, wherein the optical power splitter (1) divides an upstream optical signal from the optical fiber into a plurality of upstream optical signals having substantially similar power and (2) outputs downstream optical signals to the optical fiber, and a plurality of optical transceiver modules to (1) receive the plurality of upstream optical signals, and (2) output the downstream optical signals to the optical power splitter, and wherein at least one of the optical transceiver modules having an optical transmitter including a semiconductor optical amplifier and a reflection-type optical fiber grating located at a predetermined distance from the semiconductor optical amplifier, the optical transmitter transmitting light of a pre-set wavelength resonating between the SOA and reflection-type optical fiber grating; and wherein at least one of the optical transceiver modules having an optical receiver having an optical fiber grating for transmitting light of a predetermined wavelength and an optical detector for detecting light passing through the optical fiber grating.
摘要翻译：公开了一种波分复用无源光网络（WDM PON）系统，包括中心局，远程节点和耦合在中心局与远程节点之间的光纤，其中中心局包括耦合到光学器件的光功率分配器光纤，其中所述光功率分配器（1）将来自所述光纤的上行光信号划分成具有基本相似功率的多个上游光信号，以及（2）向所述光纤输出下行光信号，以及多个光收发模块（1）接收多个上游光信号，以及（2）将下行光信号输出到光功率分配器，并且其中至少一个光收发模块具有光发射机，该光发射机包括半导体光放大器和反射 - 位于与半导体光放大器预定距离的光纤光栅，光发射传输在SOA和反射型光纤光栅之间谐振的预设波长的光; 并且其中所述光收发器模块中的至少一个具有光接收器，所述光接收器具有用于透射预定波长的光的光纤光栅和用于检测通过所述光纤光栅的光的光学检测器。

8. 发明申请

US20050259988A1 Bi-directional optical access network 审中-公开
标题翻译：双向光接入网
公开(公告)号：US20050259988A1
公开(公告)日：2005-11-24
申请号：US10988824
申请日：2004-11-15
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 , H04B10/00 , H04B10/25 , H04B10/272 , H04J14/02
CPC分类号： H04J14/02 , H04J14/0226 , H04J14/0246 , H04J14/025 , H04J14/0282
摘要： A bi-directional optical access network is disclosed. The network includes a central office that generates a plurality of wavelength-locked downstream optical signals, multiplexes the downstream optical signals, and outputs the resultant multiplexed signal. The network also includes a remote node that demultiplexes the multiplexed signal of the downstream optical signals output from the central office, outputs the demultiplexed downstream optical signals to subscriber units, respectively, multiplexes upstream optical signals, and outputs the resultant multiplexed signal of the upstream optical signals to the central office. The subscriber units slice an associated one of the downstream optical signals to detect a portion of the associated downstream optical signal. The subscriber units generate an associated one of the upstream optical signals, which is wavelength-locked by the remaining portion of the associated downstream optical signal, and output the associated upstream optical signal to the remote node.
摘要翻译：公开了一种双向光接入网络。网络包括生成多个波长锁定的下行光信号的中心局，多路复用下行光信号，并输出所得到的复用信号。该网络还包括对从中心局输出的下行光信号的复用信号进行解复用的远程节点，分别向用户单元输出解复用的下行光信号，复用上行光信号，并输出上行光信号的合成复用信号向中心局发信号。用户单元切割相关联的一个下行光信号以检测相关联的下行光信号的一部分。用户单元产生相关联的一个上行光信号，其由相关联的下行光信号的剩余部分波长锁定，并将相关联的上行光信号输出到远程节点。

9. 发明申请

US20050047784A1 Apparatus and method for tracking optical wavelength in WDM passive optical network using loop-back light source 有权
标题翻译：使用环回光源在WDM无源光网络中跟踪光波长的装置和方法
公开(公告)号：US20050047784A1
公开(公告)日：2005-03-03
申请号：US10780132
申请日：2004-02-17
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 , H04B10/07 , H04B10/27 , H04B10/272 , H04B10/40 , H04B10/50 , H04B10/572 , H04B10/60 , H04J14/02
CPC分类号： H04J14/0282 , H04B10/2587 , H04B10/506 , H04B10/572 , H04J14/02 , H04J14/0226 , H04J14/0246 , H04J14/025 , H04J2014/0253
摘要： An optical wavelength tracking apparatus and method in a wavelength division multiplexed (WDM) passive optical network (PON) in which a central office (CO) having a multi-frequency light source is connected to a plurality of optical network units (ONUs) having loop-back light sources through a WDM MUX/DEMUX in a remote node (RN). The power levels of downstream and upstream WDM optical signals are measured. The WDM wavelengths of the multi-frequency light source and the WDM MUX/DEMUX are controlled to be nearly identical in order to minimize the difference between the power levels of the downstream and upstream WDM optical signals.
摘要翻译：一种波分复用（WDM）无源光网络（PON）中的光波长跟踪装置和方法，其中具有多频光源的中心局（CO）连接到具有环路的多个光网络单元（ONU）通过远程节点（RN）中的WDM MUX / DEMUX来返回光源。测量下行和上行WDM光信号的功率电平。控制多频光源和WDM MUX / DEMUX的WDM波长几乎相同，以便最小化下行和上行WDM光信号的功率电平之间的差异。

10. 发明申请

US20050008362A1 Self-healing wavelength division multiplexing-passive optical network system 失效
标题翻译：自愈波分复用 - 无源光网络系统
公开(公告)号：US20050008362A1
公开(公告)日：2005-01-13
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： H04B10/03 , H04B10/032 , H04B10/27 , H04B10/272 , H04J3/16 , H04J14/00 , H04J14/02 , H04Q11/00 , 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。

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