Optical access network of wavelength division method and passive optical network using the same
    1.
    发明申请
    Optical access network of wavelength division method and passive optical network using the same 审中-公开
    光接入网络的波分方法和无源光网络使用相同

    公开(公告)号:US20060045525A1

    公开(公告)日:2006-03-02

    申请号:US11199490

    申请日:2005-08-08

    IPC分类号: H04J14/00

    摘要: A wavelength division multiplexed optical access network including a central office for multiplexing first optical signals used for transmitting a high-speed wire data service to a subscriber side and second optical signals used for transmitting a wireless data service to a remote subscriber terminal, a remote node connected to the central office through an optical fiber and for de-multiplexing a multiplexed optical signal received from the central office, a plurality of subscribers connected to the remote node, each subscriber receiving a first optical signal having a corresponding wavelength from among the de-multiplexed first optical signals, and a plurality of radio access units connected to the remote node, each radio access unit converting a second optical signal having a corresponding wavelength from among the de-multiplexed second optical signals into a wireless electric signal and wirelessly transmitting the wireless electric signal.

    摘要翻译: 一种波分多路复用光接入网络,包括用于将用于向用户侧发送高速有线数据业务的第一光信号复用的中心局和用于向远程用户终端发送无线数据业务的第二光信号,远端节点 通过光纤连接到中心局,并且对从中心局接收的多路复用的光信号进行去多路复用,多个用户连接到远程节点,每个用户接收到具有相应波长的第一光信号, 多路复用的第一光信号和连接到远程节点的多个无线电接入单元,每个无线电接入单元将具有相应波长的第二光信号从解复用的第二光信号中转换成无线电信号,并无线地发送无线 电信号。

    Optical access network of wavelength division method and passive optical network using the same
    2.
    发明申请
    Optical access network of wavelength division method and passive optical network using the same 审中-公开
    光接入网络的波分方法和无源光网络使用相同

    公开(公告)号:US20060045524A1

    公开(公告)日:2006-03-02

    申请号:US11156155

    申请日:2005-06-17

    IPC分类号: H04J14/00

    摘要: An optical access network of wavelength division method and passive optical network using the same are disclosed. The wavelength division multiplexed optical access network includes a central office for multiplexing first optical signals for wire communication and second optical signals for wireless communication and a remote node connected to the central office through an optical fiber and for demultiplexing a multiplexed optical signal received from the central office. A plurality of subscribers may be connected to the remote node. Each subscriber receives a first optical signal having a corresponding wavelength from among the demultiplexed first optical signals. The network also includes a plurality of radio relay stations connected to the remote node, each radio relay station converting a second optical signal having a corresponding wavelength from among the demultiplexed second optical signals into a radio electric signal and wirelessly transmitting the radio electric signal.

    摘要翻译: 公开了一种波分复用光接入网络及其使用的无源光网络。 波分多路复用光接入网包括一个中心局,用于多路复用用于有线通信的第一光信号和用于无线通信的第二光信号,以及通过光纤连接到中心局的远端节点,以及从中心接收的复用光信号 办公室。 多个用户可以连接到远程节点。 每个用户从解复用的第一光信号中接收具有相应波长的第一光信号。 网络还包括连接到远程节点的多个无线电中继站,每个无线电中继站将具有相应波长的第二光信号从解复用的第二光信号中转换为无线电信号,并无线发射无线电信号。

    Method for maintaining wavelength-locking of Fabry-Perot laser regardless of change of external temperature and WDM light source using the method
    3.
    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

    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。

    SCM-PON using WDM
    4.
    发明申请
    SCM-PON using WDM 审中-公开
    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

    IPC分类号: H04J14/00

    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。

    Wavelength-division-multiplexed passive optical network system using wavelength-seeded light source
    5.
    发明申请
    Wavelength-division-multiplexed passive optical network system using wavelength-seeded light source 审中-公开
    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

    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。

    Wavelength-division-multiplexed passive optical network using multi-wavelength lasing source and reflective optical amplification means
    7.
    发明申请
    Wavelength-division-multiplexed passive optical network using multi-wavelength lasing source and reflective optical amplification means 审中-公开
    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

    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。

    Wavelength division multiplexing optical transmitter using Fabry-Perot laser
    8.
    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

    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。

    Apparatus and method for tracking optical wavelength in WDM passive optical network using loop-back light source
    9.
    发明授权
    Apparatus and method for tracking optical wavelength in WDM passive optical network using loop-back light source 有权
    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

    IPC分类号: H04J14/02 H04B10/00

    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。

    Optical network for bi-directional wireless communication
    10.
    发明申请
    Optical network for bi-directional wireless communication 审中-公开
    用于双向无线通信的光网络

    公开(公告)号:US20060104636A1

    公开(公告)日:2006-05-18

    申请号:US11281761

    申请日:2005-11-17

    IPC分类号: H04B10/20

    摘要: A bi-directional metro-access optical network includes a central office for generating beams of different wavelength bands and a plurality of wavelength locked downward optical signals and for detecting wavelength locked upward optical signals; a plurality of nodes for detecting the downward optical signals of different wavelengths and for generating the wavelength locked upward optical signals of which wavelengths are locked by respective wavelength beams; a first optical fiber line for linking together each of the nodes with the central office in a ring shape, transmitting the upward optical signals to the central office, and transmitting the downward optical signals and the beams to each of the nodes; and a second optical fiber line for linking together each of the nodes with the central office in a ring shape along the circumference of the first optical fiber line.

    摘要翻译: 双向地铁接入光网络包括用于产生不同波长带的波束和多个波长锁定的向下的光信号的中心局和用于检测波长锁定的向上的光信号; 多个节点,用于检测不同波长的向下的光信号,并产生波长锁定的上行光信号,波长由各波长波束锁定; 用于将每个节点与中心局以环形形式连接在一起的第一光纤线路,将向上的光信号传输到中心局,并将向下的光信号和光束传输到每个节点; 以及第二光纤线路,用于将每个节点与中心局沿着第一光纤线路的圆周以环形形状连接在一起。