专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07110168B2 Optical signal transmission apparatus including reflective gain-clamped semiconductor optical amplifier 有权
标题翻译：光信号传输装置包括反射增益钳位半导体光放大器
公开(公告)号：US07110168B2
公开(公告)日：2006-09-19
申请号：US10847109
申请日：2004-05-17
申请人： Jeong-Seok Lee , Ho-In Kim , In-Kuk Yun , Seung-Woo Kim , Hyun-Cheol Shin , Yun-Je Oh , Seong-Taek Hwang
发明人： Jeong-Seok Lee , Ho-In Kim , In-Kuk Yun , Seung-Woo Kim , Hyun-Cheol Shin , Yun-Je Oh , Seong-Taek Hwang
IPC分类号： H04B10/12
CPC分类号： H04B10/506 , H01S3/2333 , H01S3/2383 , H01S5/005 , H01S5/5072 , H01S2301/02
摘要： Disclosed are optical signal transmission apparatus including a reflective gain-clamped semiconductor optical amplifier and optical communication system using the optical signal transmission apparatus, which can improve modulation speed and optical power by effectively suppressing intensity noise of an incoherent light source. The optical signal transmission apparatus comprises a light source; a reflective gain-clamped semiconductor optical amplifier to generate gain-clamped optical signals having a substantially constant output intensity in a gain saturation region; a wavelength division multiplexing apparatus configured to spectrum-slice light from the light source, provide the spectrum-sliced light to the reflective gain-clamped semiconductor optical amplifier, and multiplex optical signals gain-clamped by the reflective gain-clamped optical amplifier, and a circulator for inputting the light generated by the light source to the wavelength division multiplexing apparatus, and outputting the optical signal multiplexed by the wavelength division multiplexing apparatus to a transmission link.
摘要翻译：公开了包括使用光信号传输装置的反射增益钳位半导体光放大器和光通信系统的光信号传输装置，其可以通过有效地抑制非相干光源的强度噪声来提高调制速度和光功率。光信号传输装置包括光源; 反射增益钳位半导体光放大器，用于产生在增益饱和区中具有基本上恒定的输出强度的增益钳位光信号; 波长分割多路复用装置，被配置为对来自光源的光进行光谱分片，向经反射增益钳位的半导体光放大器提供频谱切割的光，并对由反射增益钳位的光放大器进行增益钳位的多路复用光信号，以及循环器，用于将由光源产生的光输入到波分多路复用装置，并将由波分多路复用装置复用的光信号输出到传输链路。

2. 发明申请

US20050088724A1 Optical signal transmission apparatus including reflective gain-clamped semiconductor optical amplifier 有权
标题翻译：光信号传输装置包括反射增益钳位半导体光放大器
公开(公告)号：US20050088724A1
公开(公告)日：2005-04-28
申请号：US10847109
申请日：2004-05-17
申请人： Jeong-Seok Lee , Ho-In Kim , In-Kuk Yun , Seung-Woo Kim , Hyun-Cheol Shin , Yun-Je Oh , Seong-Taek Hwang
发明人： Jeong-Seok Lee , Ho-In Kim , In-Kuk Yun , Seung-Woo Kim , Hyun-Cheol Shin , Yun-Je Oh , Seong-Taek Hwang
IPC分类号： H01S5/50 , G02B6/28 , H01S3/00 , H01S3/23 , H01S5/00 , H04B10/2507 , H04B10/40 , H04B10/50 , H04B10/60 , H04J14/00 , H04J14/02
CPC分类号： H04B10/506 , H01S3/2333 , H01S3/2383 , H01S5/005 , H01S5/5072 , H01S2301/02
摘要： Disclosed are optical signal transmission apparatus including a reflective gain-clamped semiconductor optical amplifier and optical communication system using the optical signal transmission apparatus, which can improve modulation speed and optical power by effectively suppressing intensity noise of an incoherent light source. The optical signal transmission apparatus comprises a light source; a reflective gain-clamped semiconductor optical amplifier to generate gain-clamped optical signals having a substantially constant output intensity in a gain saturation region; a wavelength division multiplexing apparatus configured to spectrum-slice light from the light source, provide the spectrum-sliced light to the reflective gain-clamped semiconductor optical amplifier, and multiplex optical signals gain-clamped by the reflective gain-clamped optical amplifier. and a circulator for inputting the light generated by the light source to the wavelength division multiplexing apparatus, and outputting the optical signal multiplexed by the wavelength division multiplexing apparatus to a transmission link.
摘要翻译：公开了包括使用光信号传输装置的反射增益钳位半导体光放大器和光通信系统的光信号传输装置，其可以通过有效地抑制非相干光源的强度噪声来提高调制速度和光功率。光信号传输装置包括光源; 反射增益钳位半导体光放大器，用于产生在增益饱和区中具有基本上恒定的输出强度的增益钳位光信号; 波分多路复用装置，被配置为对来自光源的光进行光谱分片，将光谱切片光提供给反射增益钳位半导体光放大器，并且复用由反射增益钳位光放大器增益钳位的光信号。以及循环器，用于将由光源产生的光输入到波分复用装置，并将由波分多路复用装置复用的光信号输出到传输链路。

3. 发明申请

US20050041971A1 Multi-wavelength optical transmitter and bi-directional wavelength division multiplexing system using the same 审中-公开
标题翻译：多波长光发射机和双向波分复用系统使用相同
公开(公告)号：US20050041971A1
公开(公告)日：2005-02-24
申请号：US10792322
申请日：2004-03-03
申请人： Jea-Hyuck Lee , Jeong-Seok Lee , Seong-Taek Hwang , Yun-Je Oh
发明人： Jea-Hyuck Lee , Jeong-Seok Lee , Seong-Taek Hwang , Yun-Je Oh
IPC分类号： H01S3/10 , H04B10/2507 , H04J14/00 , H04J14/02
CPC分类号： H04B10/296 , H04B10/2503 , H04J14/02
摘要： A multi-wavelength optical transmitter which multiplexes a plurality of channels having different wavelengths into an optical signal for output includes lasers for generating mode-locked channels by corresponding incoherent light received in the lasers. The transmitter also has a semiconductor optical amplifier for amplifying, while in a gain saturation state, the optical signal multiplexed by the multiplexer/demultiplexer. Light from a broadband light source is directed by a circulator to the multiplexer/demultiplexer for demultiplexing among the lasers. Light back from the lasers is multiplexed and then directed by the circulator and amplified by a semiconductor optical amplifier for output external to the transmitter.
摘要翻译：将具有不同波长的多个信道多路复用到用于输出的光信号中的多波长光发射机包括用于通过在激光器中接收的相应非相干光产生锁模信道的激光器。发射机还具有半导体光放大器，用于在增益饱和状态下放大由多路复用器/解复用器多路复用的光信号。来自宽带光源的光由循环器引导到多路复用器/解复用器，用于激光器之间的解复用。来自激光器的光反射被多路复用，然后由循环器引导并由半导体光放大器放大，以便在发射机外部输出。

4. 发明授权

US07110170B2 Semiconductor optical amplifier having photo detector and method of fabricating the same 有权
标题翻译：具有光电检测器的半导体光放大器及其制造方法
公开(公告)号：US07110170B2
公开(公告)日：2006-09-19
申请号：US10780306
申请日：2004-02-17
申请人： Jeong-Seok Lee , Yun-Je Oh , Seong-Taek Hwang
发明人： Jeong-Seok Lee , Yun-Je Oh , Seong-Taek Hwang
IPC分类号： H01S3/00
CPC分类号： H01S5/50 , H01S5/0264 , H01S5/0425 , H01S5/2004 , H01S5/22 , H01S5/5072
摘要： A gain-clamped semiconductor optical amplifier having photo detectors which are integrated on a single crystal substrate can detect optical intensities at input/output terminals of the optical amplifier. The semiconductor optical amplifier includes a first conductive semiconductor substrate, a semiconductor optical amplifier formed on the semiconductor substrate so as to have a horizontal-direction lasing structure, and a first and a second photo detector formed respectively at positions of the semiconductor substrate spaced horizontally from an input side and an output side of the semiconductor optical amplifier so as to measure intensities of an input signal and an output signal of the semiconductor optical amplifier.
摘要翻译：集成在单晶衬底上的具有光电检测器的增益钳位半导体光放大器可以检测光放大器的输入/输出端的光强度。半导体光放大器包括第一导电半导体衬底，形成在半导体衬底上以便具有水平方向激光结构的半导体光放大器，以及第一和第二光电检测器，分别形成在半导体衬底的水平方向半导体光放大器的输入侧和输出侧，以测量半导体光放大器的输入信号和输出信号的强度。

5. 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。

6. 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

7. 发明申请

US20050041280A1 Semiconductor optical amplifier having photo detector and method of fabricating the same 有权
标题翻译：具有光电检测器的半导体光放大器及其制造方法
公开(公告)号：US20050041280A1
公开(公告)日：2005-02-24
申请号：US10780306
申请日：2004-02-17
申请人： Jeong-Seok Lee , Yun-Je Oh , Seong-Taek Hwang
发明人： Jeong-Seok Lee , Yun-Je Oh , Seong-Taek Hwang
IPC分类号： H01S5/50 , H01S3/10 , H01S3/108 , H01S5/026 , H01S5/10 , H01S5/22 , H01S3/00
CPC分类号： H01S5/50 , H01S5/0264 , H01S5/0425 , H01S5/2004 , H01S5/22 , H01S5/5072
摘要： A gain-clamped semiconductor optical amplifier having photo detectors which are integrated on a single crystal substrate can detect optical intensities at input/output terminals of the optical amplifier. The semiconductor optical amplifier includes a first conductive semiconductor substrate, a semiconductor optical amplifier formed on the semiconductor substrate so as to have a horizontal-direction lasing structure, and a first and a second photo detector formed respectively at positions of the semiconductor substrate spaced horizontally from an input side and an output side of the semiconductor optical amplifier so as to measure intensities of an input signal and an output signal of the semiconductor optical amplifier.
摘要翻译：集成在单晶衬底上的具有光电检测器的增益钳位半导体光放大器可以检测光放大器的输入/输出端的光强度。半导体光放大器包括第一导电半导体衬底，形成在半导体衬底上以便具有水平方向激光结构的半导体光放大器，以及第一和第二光电检测器，分别形成在半导体衬底的水平方向半导体光放大器的输入侧和输出侧，以测量半导体光放大器的输入信号和输出信号的强度。

8. 发明授权

US07653039B2 Network system for interworking W-LAN and 3G mobile communication network through RoF link and authentication method according to interworking in the network system 失效
标题翻译：网络系统通过RoF链路和网络系统互通的认证方式互联W-LAN和3G移动通信网络
公开(公告)号：US07653039B2
公开(公告)日：2010-01-26
申请号：US11356822
申请日：2006-02-17
申请人： Gyu-Woong Lee , Kwan-Soo Lee , Chang-Sup Shim , Yun-Je Oh , Jae-Hoon Lee , Seong-Taek Hwang
发明人： Gyu-Woong Lee , Kwan-Soo Lee , Chang-Sup Shim , Yun-Je Oh , Jae-Hoon Lee , Seong-Taek Hwang
IPC分类号： H04W4/00
CPC分类号： H04W92/02 , H04B10/2575 , H04L63/08 , H04W12/06 , H04W84/04 , H04W84/12 , H04W88/08 , H04W88/085
摘要： A network system for interworking a Wireless Local Area Network (W-LAN) and a 3rd-Generation (3G) mobile communication network through a Radio-over-Fiber(RoF) link and an authentication method in interworking in the network system are provided. The network system includes a 3G mobile communication network and a W-LAN system. The 3G mobile communication network includes a voice signal processing network connected to a Public Switched Telephone Network (PSTN) for voice call processing with respect to a predetermined mobile terminal, a packet data network for data communication with the predetermined mobile terminal, and a terminal device for communication with the predetermined mobile terminal. The W-LAN system is connected to the packet data network of the 3G mobile communication network to provide a W-LAN service to the predetermined mobile communication terminal. The W-LAN system is implemented in a plurality of Base Transceiver Stations (BTSs) included in the 3G mobile communication network through the RoF link.
摘要翻译：提供了一种用于通过光纤无线（RoF）链路互通无线局域网（W-LAN）和第三代（3G）移动通信网络的网络系统，以及在网络系统中互通的认证方法。网络系统包括3G移动通信网络和W-LAN系统。 3G移动通信网络包括连接到公共交换电话网（PSTN）的语音信号处理网络，用于相对于预定移动终端进行语音呼叫处理，用于与预定移动终端进行数据通信的分组数据网络，以及终端设备用于与预定的移动终端进行通信。 W-LAN系统连接到3G移动通信网络的分组数据网络，以向预定的移动通信终端提供W-LAN服务。 W-LAN系统通过RoF链路在3G移动通信网络中包括的多个基站收发台（BTS）中实现。

9. 发明授权

US07474858B2 Duobinary optical transmission device using at least one semiconductor optical amplifier 失效
标题翻译：使用至少一个半导体光放大器的二元光传输装置
公开(公告)号：US07474858B2
公开(公告)日：2009-01-06
申请号：US10849070
申请日：2004-05-19
申请人： Han-Lim Lee , Gyu-Woong Lee , Yun-Je Oh , Seong-Taek Hwang
发明人： Han-Lim Lee , Gyu-Woong Lee , Yun-Je Oh , Seong-Taek Hwang
IPC分类号： H04B10/00
CPC分类号： H04B10/505 , H04B10/5055 , H04B10/508
摘要： A duobinary optical transmission device provides duobinary optical transmission with improved quality by a technique that does not require an electrical low pass filter LPF.A duobinary optical transmission device includes at least one semiconductor optical amplifier (SOA). A light source outputs a carrier wave as an optical signal. A precoder encodes an input of a non-return-to-zero (NRZ) electrical signal. An interferometer type semiconductor optical amplification unit modulates the carrier wave according to a change of an applied bias current coupled to the encoded signal. An optical band pass filter (OBPF) receives the phase-modulated optical signal from the semiconductor optical amplification unit, filters the received phase-modulated optical signal according to a designated band, and outputs an optical duobinary signal.
摘要翻译：双二进制光传输装置通过不需要电气低通滤波器LPF的技术提供具有改进质量的双向光传输。双二进制光传输装置包括至少一个半导体光放大器（SOA）。光源输出载波作为光信号。预编码器对不归零（NRZ）电信号的输入进行编码。干涉仪型半导体光放大单元根据耦合到编码信号的施加的偏置电流的变化来调制载波。光带通滤波器（OBPF）从半导体光放大单元接收相位调制光信号，根据指定频带对接收的相位调制光信号进行滤波，并输出光双二进制信号。

10. 发明申请

US20080102881A1 Method and apparatus for adaptively allocating transmission power for beam-forming combined with OSTBCs in a distributed wireless communication system 有权
标题翻译：用于在分布式无线通信系统中自适应地分配与OSTBC组合的波束形成的发射功率的方法和装置
公开(公告)号：US20080102881A1
公开(公告)日：2008-05-01
申请号：US11977612
申请日：2007-10-25
申请人： Shuangfeng Han , Yun-Je Oh , Seong-Taek Hwang , Byung-Jik Kim , Han-Lim Lee
发明人： Shuangfeng Han , Yun-Je Oh , Seong-Taek Hwang , Byung-Jik Kim , Han-Lim Lee
IPC分类号： H04Q7/20 , H04M1/00
CPC分类号： H01Q3/30 , H04B7/0443 , H04B7/0669 , H04B7/0691 , H04W52/346 , H04W52/42
摘要： An apparatus that adaptively allocates transmission power for beam-forming combined with orthogonal space time block codes in a distributed wireless communication system, the apparatus including: sub-arrays for beam-forming, which are geographically distributed and each of which includes a plurality of distributed antennas placed in random groups. A central processing unit provides predetermined combinable power allocation schemes according to subsets in a plurality of the sub-arrays, identifying performances of the schemes by using information on large-scale fading of each of the sub-arrays fed back from a receiving party, setting a subset having best performance as an optimal subset according to the identified performances, and performing power allocation according thereto.
摘要翻译：一种在分布式无线通信系统中自适应地分配与正交空间时间块码组合的波束成形的发射功率的装置，该装置包括：地理分布的波束形成子阵列，每个子阵列包括多个分布式天线放置在随机组中。中央处理单元根据多个子阵列中的子集提供预定的可组合功率分配方案，通过使用关于从接收方反馈的每个子阵列的大规模衰落的信息来识别方案的性能，设置根据所识别的性能，具有作为最佳子集的最佳性能的子集，以及根据所识别的性能执行功率分配。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式