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81. 发明授权

US07340173B2 Wavelength division multiplexing optical transmitter using Fabry-Perot laser 有权
标题翻译：波分复用光发射机采用法布里 - 珀罗激光器
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。

82. 发明申请

US20070189261A1 METHOD FOR CONTROLLING HANDOFF IN OPTICAL DISTRIBUTED NETWORK SYSTEM USING MULTI INPUT MULTI OUTPUT 有权
标题翻译：使用多输入多输出控制光分布式网络系统中的切换方法
公开(公告)号：US20070189261A1
公开(公告)日：2007-08-16
申请号：US11623791
申请日：2007-01-17
申请人： Do-In Choi , Seong-Taek Hwang , Yun Je Oh
发明人： Do-In Choi , Seong-Taek Hwang , Yun Je Oh
IPC分类号： H04B7/212
CPC分类号： H04W36/18
摘要： A method for controlling a handoff in an optical distributed network system using MIMO (multi input multi output) is disclosed. The method includes steps of classifying a channel into a first channel and a second channel, and setting an active cell, receiving and measuring a signal strength of a predetermined cell, and determining on/off of the predetermined cell, when the predetermined cell turns on, releasing the first channel of the active cell, switching a path to a first channel of the predetermined cell, and keeping the second channel of the active cell, receiving and measuring a signal strength of the active cell, and when the measured signal strength is a preset critical value or less, turning off the active cell and when the active cell turns off, releasing the second channel of the active cell, and switching the path to a second channel of the predetermined cell.
摘要翻译：公开了一种使用MIMO（多输入多输出）控制光分布式网络系统中切换的方法。该方法包括以下步骤：将信道分类为第一信道和第二信道，并且当预定小区接通时，设置活动小区，接收和测量预定小区的信号强度，以及确定预定小区的开/关释放活动小区的第一信道，切换到预定小区的第一信道的路径，并保持活动小区的第二信道，接收并测量活动小区的信号强度，并且当测得的信号强度为预设的临界值或更小，关闭活动小区，并且当活动小区关闭时，释放活动小区的第二信道，并将路径切换到预定小区的第二信道。

83. 发明申请

US20070184841A1 Optical distributed network system using multi input multi output 审中-公开
标题翻译：光分布式网络系统采用多输入多输出
公开(公告)号：US20070184841A1
公开(公告)日：2007-08-09
申请号：US11606428
申请日：2006-11-30
申请人： Do-In Choi , Seong-Taek Hwang , Yun-Je Oh
发明人： Do-In Choi , Seong-Taek Hwang , Yun-Je Oh
IPC分类号： H04Q7/20
CPC分类号： H04B10/25754 , H04W88/085
摘要： Provided is a system for communicating between a base station transceiver subsystem and radio access units in a wireless communication system. The system includes a data path switch for switching a signal received from a base station controller, to a predetermined picocell, a micro cell HD controller and a picocell HD controller for detecting header information of the received signal, and controlling the data path switch, a picocell power meter for receiving a signal strength from a mobile terminal, and performing a power control, a modem for processing and transmitting the signal to an optical transceiver, and processing and transmitting a signal received from the optical transceiver to the data path switch and an optical transceiving unit for receiving and converting an electric signal into an optical signal, and receiving and converting an optical signal into an electric signal.
摘要翻译：提供了一种用于在无线通信系统中的基站收发机子系统和无线电接入单元之间进行通信的系统。该系统包括用于将从基站控制器接收的信号切换到预定微微小区的数据路径切换器，用于检测接收信号的标题信息的微小区HD控制器和微微小区HD控制器，以及控制数据路径切换用于从移动终端接收信号强度的微微小区功率计，以及执行功率控制的调制解调器，用于处理和发送信号到光收发器的调制解调器，以及处理和发送从光收发器接收的信号到数据路径开关，以及光收发单元，用于将电信号接收和转换成光信号，以及接收并将光信号转换成电信号。

84. 发明授权

US07254340B2 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：US07254340B2
公开(公告)日：2007-08-07
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： H04J14/02 , H04B10/00
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。

85. 发明授权

US07224907B2 Duobinary optical transmission apparatus 失效
标题翻译：双色光传输装置
公开(公告)号：US07224907B2
公开(公告)日：2007-05-29
申请号：US10459788
申请日：2003-06-12
申请人： Han-Lim Lee , Ji-Chai Jeong , Yong-Hoon Kim , Yun-Je Oh , Seong-Taek Hwang
发明人： Han-Lim Lee , Ji-Chai Jeong , Yong-Hoon Kim , Yun-Je Oh , Seong-Taek Hwang
IPC分类号： H04B10/04 , H04B10/12
CPC分类号： H04B10/505 , H04B10/5055 , H04B10/508
摘要： A duobinary optical transmission apparatus is provided to generate duobinary optical signals, without using an electric low-pass-filter (LPF), by restricting a bandwidth of a Mach-Zehnder-interferometer-type optical intensity modulator (MZ MOD). Alternatively, a LPF having a single pole with a single capacitor is implemented instead of an expensive LPF, thereby providing a simple transmitter with a lower production cost in comparison with a transmitter using a conventional electric LPF.
摘要翻译：提供双二进制光传输装置，通过限制马赫 - 曾德干涉仪型光强度调制器（MZ MOD）的带宽，而不使用电气低通滤波器（LPF）来产生双二进制光信号。或者，实现具有单个电容器的单极点的LPF而不是昂贵的LPF，从而与使用常规电气LPF的发射器相比，提供具有较低生产成本的简单发射器。

86. 发明授权

US07173758B2 Gain-clamped semiconductor optical amplifier 有权
标题翻译：增益钳位半导体光放大器
公开(公告)号：US07173758B2
公开(公告)日：2007-02-06
申请号：US10922677
申请日：2004-08-19
申请人： Jeong-Seok Lee , Yun-Je Oh , Seong-Taek Hwang , Dong-Han Lee , Jeong-Mee Oh
发明人： Jeong-Seok Lee , Yun-Je Oh , Seong-Taek Hwang , Dong-Han Lee , Jeong-Mee Oh
IPC分类号： H01S5/00 , H01S4/00
CPC分类号： H01S5/50 , H01S5/0078 , H01S5/5072
摘要： A gain-clamped semiconductor optical amplifier includes a semiconductor optical amplifier for amplifying an inputted optical signal and outputting amplified spontaneous emission light, the amplified spontaneous emission light consisting of a first portion and a second portion, the first portion having a wavelength range to be amplified. The amplifier further includes a wavelength selective reflector for allowing the first portion of the amplified spontaneous emission light to pass through the wavelength selective reflector and reflecting the second portion of the amplified spontaneous emission light again to the semiconductor optical amplifier, thereby clamping the gain of the amplifier.
摘要翻译：增益钳位半导体光放大器包括用于放大输入的光信号并输出放大的自发发射光的半导体光放大器，放大的自发发射光由第一部分和第二部分组成，第一部分具有待放大的波长范围。放大器还包括一个波长选择反射器，用于使放大的自发发射光的第一部分通过波长选择反射器并将放大的自发发射光的第二部分再次反射到半导体光放大器，由此夹紧放大器

87. 发明申请

US20060291776A1 Wavelength-division-multiplexed passive optical network using wavelength-locked optical transmitter 失效
标题翻译：使用波长锁定光发射机的波分复用无源光网络
公开(公告)号：US20060291776A1
公开(公告)日：2006-12-28
申请号：US11471152
申请日：2006-06-20
申请人： Jae-Hoon Lee , Yong-Gyoo Kim , Yun-Je Oh , Seong-Taek Hwang
发明人： Jae-Hoon Lee , Yong-Gyoo Kim , Yun-Je Oh , Seong-Taek Hwang
IPC分类号： G02B6/28
CPC分类号： H04J14/0226 , H04J14/02 , H04J14/0246 , H04J14/025 , H04J14/0282
摘要： Disclosed is a wavelength-division-multiplexed passive optical network using a wavelength-locked optical transmitter. The wavelength-division-multiplexed passive optical network (WDM PON) includes a central office, which includes a plurality of downstream optical transmitters for outputting downstream optical signals having wavelengths according to downstream injection lights, a wavelength division multiplexer including a plurality of de-multiplexing ports linked to the plurality of the downstream optical transmitters by one-to-one, and a multiplexing port linked with the feeder fiber and performing wavelength division multiplexing and wavelength division de-multiplexing, and at least one optical switch interposed between the downstream optical transmitters and the de-multiplexing ports, inputting a downstream band light output from a selected downstream optical transmitter to the multiplexing port, and inputting a downstream optical signal output from a remaining downstream optical transmitter, which is not selected, to the de-multiplexing port.
摘要翻译：公开了使用波长锁定光发射机的波分复用无源光网络。波分复用无源光网络（WDM PON）包括中心局，其包括多个下行光发射机，用于输出具有根据下游注入光的波长的下行光信号，波分多路复用器包括多个解复用通过一对一连接到多个下游光发射机的端口，以及与馈电光纤链接并执行波分复用和波分解除复用的复用端口，以及插入在下行光发射机之间的至少一个光开关以及解复用端口，将从所选择的下游光发射机输出的下行带光输入到复用端口，以及将未被选择的剩余下行光发射机输出的下行光信号输入到解复用端口。

88. 发明授权

US07119947B2 Dual-port broadband light source 有权
标题翻译：双端口宽带光源
公开(公告)号：US07119947B2
公开(公告)日：2006-10-10
申请号：US10869428
申请日：2004-06-16
申请人： Sang-Ho Kim , Seong-Taek Hwang , Yun-Je Oh
发明人： Sang-Ho Kim , Seong-Taek Hwang , Yun-Je Oh
IPC分类号： H10S4/00
CPC分类号： H01S3/06754 , H01S3/005 , H01S3/0064 , H01S3/0078 , H01S3/06766 , H01S3/0677 , H01S3/094023 , H01S3/0941 , H01S3/1608 , H01S3/1613 , H01S3/1616 , H04B10/506
摘要： A dual-port broadband light source is disclosed. In the dual-port broadband light source, a first beam splitter splits a first ASE at a first ratio into the second and third light paths and outputs the first ASE received from the second light path to the first light path. A second beam splitter splits a second ASE at a second ratio into the second and fourth light sources and outputs the second ASE received from the second light path to the first light path. A first reflector reflects input first and second ASEs in the first light path, and a second reflector reflects input first and second ASEs in the second light path. A first gain medium generates the first ASE between the first reflector and the first beam splitter, and a second gain medium generates the second ASE between the first reflector and the second beam splitter.
摘要翻译：公开了一种双端口宽带光源。在双端口宽带光源中，第一分束器以第一比率将第一ASE分离成第二和第三光路，并将从第二光路接收的第一ASE输出到第一光路。第二分束器以第二比例将第二ASE分成第二和第四光源，并将从第二光路接收的第二ASE输出到第一光路。第一反射器在第一光路中反射输入的第一和第二ASE，并且第二反射器在第二光路中反射输入的第一和第二ASE。第一增益介质在第一反射器和第一分束器之间产生第一ASE，第二增益介质在第一反射器和第二分束器之间产生第二ASE。

89. 发明申请

US20060177223A1 Wavelength division multiplexing-passive optical network 审中-公开
标题翻译：波分复用 - 无源光网络
公开(公告)号：US20060177223A1
公开(公告)日：2006-08-10
申请号：US11346973
申请日：2006-02-03
申请人： Seong-Taek Hwang , Kwan-Soo Lee , Chang-Sup Shim , Yun-Je Oh
发明人： Seong-Taek Hwang , Kwan-Soo Lee , Chang-Sup Shim , Yun-Je Oh
IPC分类号： H04J14/00
CPC分类号： H04J14/0282 , H04B10/296 , H04J14/02 , H04J14/0226 , H04J14/0227 , H04J14/0232 , H04J14/0246 , H04J14/025
摘要： A passive optical network includes a central office generating multiplexed downstream optical signals, a plurality of subscriber units provided with the downstream optical signals of the corresponding wavelengths, and a remote node for relaying signals between the subscriber units and the central office. The central office comprises a broadband light source for generating a light of gain-clamped wide wavelength band with a gain channel and a plurality of incoherent channels; a plurality of downstream light sources for generating downstream optical signals the wavelengths of which are locked by the incoherent channels of the corresponding wavelengths; and a multiplexer/de-multiplexer for de-multiplexing the incoherent channels and outputting the de-multiplexed channels to the corresponding downstream light source and for multiplexing the upstream optical signals and outputting the multiplexed optical signals.
摘要翻译：无源光网络包括产生多路复用的下行光信号的中心局，提供有相应波长的下行光信号的多个用户单元和用于在用户单元与中心局之间中继信号的远程节点。中心局包括宽带光源，用于产生具有增益通道和多个非相干通道的增益钳位宽波段的光; 多个下游光源，用于产生其波长被相应波长的非相干通道锁定的下行光信号; 以及多路复用器/解复用器，用于对非相干信道进行解复用，并将去多路复用的信道输出到相应的下游光源，并用于复用上行光信号并输出复用的光信号。

90. 发明申请

US20060171721A1 Label remover and label swapper using the same 审中-公开
标题翻译：标签去除器和使用相同的标签交换器
公开(公告)号：US20060171721A1
公开(公告)日：2006-08-03
申请号：US11185108
申请日：2005-07-20
申请人： Sung-Kee Kim , Hoon Kim , Yun-Je Oh , Seong-Taek Hwang
发明人： Sung-Kee Kim , Hoon Kim , Yun-Je Oh , Seong-Taek Hwang
IPC分类号： H04B10/04
CPC分类号： H04L45/00 , H04B10/2937
摘要： A label remover, and the method using the same, renders photoelectric conversion becomes unnecessary and improves using conditions and transmission quality. The label remover includes: (a) an oscillator for outputting a driving signal having a third frequency f3; (b) a double-sided band converter for (i) receiving an optical signal modulated based on a data signal of an intermediate frequency fm and frequency-modulated based on a label signal so as to indicate a first frequency f1 and a second frequency f2; and (ii) frequency-transiting the received optical signal so that each of the first and second frequencies is transited to at least two frequencies including the intermediate frequency fm; and (c) a band passer filter for filtering the frequency-transited optical signal to remove frequencies except the intermediate frequency fm.
摘要翻译：标签去除器及其使用方法使光电转换变得不必要，并且改善了使用条件和传输质量。标签去除器包括：（a）用于输出具有第三频率f 3的驱动信号的振荡器; （b）双面频带转换器，用于（i）接收基于中频fm的数据信号调制并基于标号信号进行频率调制的光信号，以指示第一频率f 1和第二频率 f 2; 和（ii）对所接收的光信号进行频率转换，使得第一和第二频率中的每一个被转换到包括中频fm的至少两个频率; 和（c）带通滤波器，用于对频率转换的光信号进行滤波以除去中间频率fm以外的频率。

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