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    Wavelength division multiplexing optical transmitter using Fabry-Perot laser
    1.
    发明授权
    Wavelength division multiplexing optical transmitter using Fabry-Perot laser 有权
    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。

    Method for maintaining wavelength-locking of Fabry-Perot laser regardless of change of external temperature and WDM light source using the method
    2.
    发明授权
    Method for maintaining wavelength-locking of Fabry-Perot laser regardless of change of external temperature and WDM light source using the method 失效
    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。

    Method for maintaining mode-locked state of fabry-perot laser irrespective of temperature change and WDM light source using the same method
    3.
    发明授权
    Method for maintaining mode-locked state of fabry-perot laser irrespective of temperature change and WDM light source using the same method 有权
    不管温度变化和WDM光源如何使用相同的方法来维持fabry-perot激光器的锁模状态的方法

    公开(公告)号：US07123633B2

    公开(公告)日：2006-10-17

    申请号：US10691392

    申请日：2003-10-22

    申请人： Dong-Jae Shin ,  Dae-Kwang Jung ,  Jea-Hyuck Lee ,  Seong-Taek Hwang ,  Yun-Je Oh

    发明人： Dong-Jae Shin ,  Dae-Kwang Jung ,  Jea-Hyuck Lee ,  Seong-Taek Hwang ,  Yun-Je Oh

    IPC分类号： H01S3/098 ,  H04J14/02

    CPC分类号： H04J14/02 ,  H01S5/0268 ,  H01S5/0608 ,  H01S5/0654 ,  H01S5/0656 ,  H01S5/4006 ,  H01S5/4087

    摘要： A method for maintaining the mode-locked state of a Fabry-Perot (FP) laser and a WDM light source using the same method for use in WDM optical communication are disclosed. The mode-locked state can be maintained irrespective of temperature change, without use of a temperature controller, by spectrum-slicing the incoherent light generated by a light source element and injecting the spectrum-sliced light to the FP laser, then the FP laser amplifies and outputs only a lasing mode coinciding with the wavelength of the injected light, wherein a lasing-mode interval of the FP laser is set to be less than a 3 dB linewidth of the injected light, so that at least one lasing mode exists inside the 3 dB linewidth of the injected light irrespective of changes in external temperature.

    摘要翻译： 公开了一种使用与WDM光通信相同的方法来维持法布里 - 珀罗（FP）激光器和WDM光源的锁模状态的方法。 通过对光源元件产生的非相干光进行频谱分片，并将光谱切片光注入到FP激光器中，不管温度变化如何，可以保持模式锁定状态而不使用温度控制器，然后FP激光放大 并且仅输出与注入的光的波长一致的激光模式，其中FP激光器的激光模式间隔被设置为小于注入的光的3dB线宽，使得至少一个激光模式存在于 不管外部温度的变化，注入光线的3dB线宽。

    Wavelength division multiplexed passive optical network system
    4.
    发明授权
    Wavelength division multiplexed passive optical network system 有权
    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。

    Multi-wavelength optical transmitter and bi-directional wavelength division multiplexing system using the same
    5.
    发明申请
    Multi-wavelength optical transmitter and bi-directional wavelength division multiplexing system using the same 审中-公开
    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。

    Embedded capacitor
    9.
    发明授权
    Embedded capacitor 失效
    嵌入式电容器

    公开(公告)号：US07301751B2

    公开(公告)日：2007-11-27

    申请号：US11229756

    申请日：2005-09-19

    申请人： Jea-Hyuck Lee ,  Young-Min Lee ,  Shi-Yun Cho ,  Shin-Hee Cho ,  Kyung-Wan Park

    发明人： Jea-Hyuck Lee ,  Young-Min Lee ,  Shi-Yun Cho ,  Shin-Hee Cho ,  Kyung-Wan Park

    IPC分类号： H01G4/06 ,  H01G4/005 ,  H01G4/228

    CPC分类号： H01G4/228 ,  H01G4/30 ,  H05K1/162 ,  H05K3/4641 ,  H05K2201/0355 ,  H05K2201/09336 ,  H05K2201/09763

    摘要： An embedded capacitor comprises a first substrate on which a plurality of electrically insulated electrode patterns and a ground pattern are formed, a second substrate separated from the first substrate, a plurality of dielectric layers stacked between the first and second substrates, a plurality of metal layers inserted between the dielectric layers and connected to the electrode patterns of the first substrate, and a plurality of ground layers inserted between the dielectric layers alternately with the metal layers.

    摘要翻译： 嵌入式电容器包括：第一基板，其上形成有多个电绝缘电极图案和接地图案;与第一基板分离的第二基板，堆叠在第一和第二基板之间的多个电介质层，多个金属层 插入在电介质层之间并连接到第一衬底的电极图案，以及多个接地层与金属层交替地插入在电介质层之间。