A small-diameter polarization maintaining optical fiber

    公开(公告)号:US20170139129A1

    公开(公告)日:2017-05-18

    申请号:US15317398

    申请日:2015-11-03

    Abstract: Disclosed is a small-diameter polarization maintaining optical fiber, which relates to the field of special optical fibers. The small-diameter polarization maintaining optical fiber comprises a quartz optical fiber (5); the periphery thereof is provided with an inner coating (6) and an outer coating (8); the interior of the quartz optical fiber (5) is provided with an optical fiber core layer (1) and a quartz cladding (2); two stress zones (4) are arranged between the optical fiber core layer (1) and the quartz cladding (2); a buffer coating (7) is arranged between the inner coating (6) and the outer coating (8); the periphery of each stress zone (4) is provided with a buffer layer (3) which is concentric with the stress zone (4); when a working wavelength of a small-diameter polarization maintaining optical fiber is 1310 nm, the attenuation thereof reaches less than 0.5 dB/km, and the crosstalk reaches −35 dB/km; and when the working wavelength of the small-diameter polarization maintaining optical fiber is 1550 nm, the attenuation thereof reaches less than 0.4 dB/km, and the crosstalk reaches −30 dB/km. The optical fiber not only has excellent stability characteristics of attenuation and crosstalk, but also has the excellent stability characteristic of long-term operation, and can provide a better optical fiber ring for research on a high-precision optical fiber gyroscope, thereby laying the foundation for the development directions of miniaturization and high precision of the optical fiber gyroscope.

    Method and system for updating optical distribution network (ODN) device by using intelligent management terminal

    公开(公告)号:US10154324B2

    公开(公告)日:2018-12-11

    申请号:US15039213

    申请日:2014-09-18

    Abstract: A method and system for updating an Optical Distribution Network (ODN) device by using an intelligent management terminal are disclosed. The method includes the following steps: an ODN management server connects to an intelligent management terminal through 2G/3G/Wifi, the intelligent management terminal is connected to an identifier of fiber's both terminations through USB or Bluetooth; the optical fiber connector is connected to an ODN device through USB, the ODN management server communicates wirelessly with the ODN device through the intelligent management terminal as a transfer station, and the ODN device downloads updating file from the ODN management server through the intelligent management terminal as a transfer station. The method and system can realize the wireless communication between the ODN network management server and the ODN device, thereby accomplishing the updating of the ODN device by the intelligent management terminal without cable networks wherever 2G/3G/Wifi.

    Small-diameter polarization maintaining optical fiber

    公开(公告)号:US09726817B2

    公开(公告)日:2017-08-08

    申请号:US15317398

    申请日:2015-11-03

    Abstract: Disclosed is a small-diameter polarization maintaining optical fiber, which relates to the field of special optical fibers. The small-diameter polarization maintaining optical fiber comprises a quartz optical fiber (5); the periphery thereof is provided with an inner coating (6) and an outer coating (8); the interior of the quartz optical fiber (5) is provided with an optical fiber core layer (1) and a quartz cladding (2); two stress zones (4) are arranged between the optical fiber core layer (1) and the quartz cladding (2); a buffer coating (7) is arranged between the inner coating (6) and the outer coating (8); the periphery of each stress zone (4) is provided with a buffer layer (3) which is concentric with the stress zone (4); when a working wavelength of a small-diameter polarization maintaining optical fiber is 1310 nm, the attenuation thereof reaches less than 0.5 dB/km, and the crosstalk reaches −35 dB/km; and when the working wavelength of the small-diameter polarization maintaining optical fiber is 1550 nm, the attenuation thereof reaches less than 0.4 dB/km, and the crosstalk reaches −30 dB/km. The optical fiber not only has excellent stability characteristics of attenuation and crosstalk, but also has the excellent stability characteristic of long-term operation, and can provide a better optical fiber ring for research on a high-precision optical fiber gyroscope, thereby laying the foundation for the development directions of miniaturization and high precision of the optical fiber gyroscope.

    Maintenance method of intelligent ODN management system
    15.
    发明授权
    Maintenance method of intelligent ODN management system 有权
    智能ODN管理系统的维护方法

    公开(公告)号:US09436518B2

    公开(公告)日:2016-09-06

    申请号:US14406697

    申请日:2013-07-24

    CPC classification number: G06F9/52 H04Q11/0067 H04Q2011/0081 H04Q2213/1301

    Abstract: A maintenance method of intelligent ODN management system comprises the following steps: carrying out mutual exclusion protection on a same operation task, wherein each executable operation task is protected by operation authorization, and any one maintenance and management terminal needs to acquire the operation authorization of the operation task before executing the operation task and release the corresponding operation authorization after the execution is finished; and carrying out mutual exclusion protection on different maintenance and management terminals, wherein after a local maintenance center obtains control right on the intelligent ODN management system, a remote maintenance center and a local maintenance terminal need to apply for authorization from the local maintenance center before operating the intelligent ODN management system, and can deliver an operation instruction after successfully applying for the authorization. A system exception caused by conflicted operations is therefor effectively prevented.

    Abstract translation: 智能ODN管理系统的维护方法包括以下步骤:对相同的操作任务执行互斥保护,其中每个可执行操作任务受到操作授权的保护,任何一个维护和管理终端需要获取操作授权 执行操作任务之前的操作任务,执行完毕后释放相应的操作授权; 对不同的维护管理终端进行互斥保护,在本地维护中心获得智能ODN管理系统的控制权后,远程维护中心和本地维护终端在运行前需要从本地维护中心申请授权 智能ODN管理系统,并可在成功申请授权后提供操作指导。 因冲突操作引起的系统异常有效防止。

    SMART ODN SYSTEM OF LOW POWER CONSUMPTION
    16.
    发明申请
    SMART ODN SYSTEM OF LOW POWER CONSUMPTION 审中-公开
    智能低功耗系统

    公开(公告)号:US20150222971A1

    公开(公告)日:2015-08-06

    申请号:US14124683

    申请日:2012-08-10

    Abstract: The present invention discloses a smart ODN system of low power consumption, and the system is related to the ODN field and includes a smart management terminal, a master control management board, and several wiring management boards, where the smart management terminal is directly connected to the master control management board, and is also connected to the master control management board through the Internet and a mobile terminal, the master control management board is connected with several wiring management boards, each wiring management board includes a PMU and a PQU, which are independent from each other, the PQU is connected to a CPU of a wiring management board through a control line; the PMU is configured to collect and store information data of a port and communicate with the master control management board or the smart management terminal; the PQU independent from the CPU independently performs the query operation on a wiring port, and promptly obtains a port connection status. The present invention more than doubles operation time of a smart ODN management system, extends battery life of the whole system when a mobile power supply provides power for the system, shortens a time span taken by the system to respond to port changes, and improves operation efficiency of the system.

    Abstract translation: 本发明公开了一种低功耗的智能ODN系统,该系统与ODN领域相关,包括智能管理终端,主控管理板和多个布线管理板,智能管理终端直接连接 主控管理板,并通过互联网和移动终端连接到主控管理板,主控管理板与多个布线管理板连接,每个布线管理板包括一个PMU和一个PQU,它们是 彼此独立,PQU通过控制线连接到布线管理板的CPU; PMU被配置为收集和存储端口的信息数据,并与主控管理板或智能管理终端进行通信; 独立于CPU的PQU独自在接线端口执行查询操作,并及时获取端口连接状态。 本发明使智能ODN管理系统的操作时间增加了两倍以上,当移动电源为系统提供电力时,延长了整个系统的电池寿命,缩短了系统响应端口变化所需的时间间隔,并改善了操作 系统的效率。

    CIRCUIT FOR REALIZING PASSIVATION OF INTELLIGENT OPTICAL DISTRIBUTION INTERFACE DISC IN MACHINE DISC ENABLE MANNER
    17.
    发明申请
    CIRCUIT FOR REALIZING PASSIVATION OF INTELLIGENT OPTICAL DISTRIBUTION INTERFACE DISC IN MACHINE DISC ENABLE MANNER 审中-公开
    实现智能光纤分布式接口盘在机器光盘启动器中的实现电路

    公开(公告)号:US20140112665A1

    公开(公告)日:2014-04-24

    申请号:US14124705

    申请日:2012-08-10

    CPC classification number: H04B10/801 G02B6/2553 G02B6/4292

    Abstract: Disclosed is a circuit for realizing passivation of an intelligent optical distribution interface disc in a machine disc enable manner, which relates to the field of optical communications. In the present invention, a distribution port is separated from distribution management, all management circuits on a distribution interface disc are moved out, and all control and management functions are achieved on a distribution management disc, to enable passivation of a distribution interface disc circuit, i.e. any active electronic devices such as integrated circuits, triodes, etc. which are easily damaged by static electricity and affected by fouling are not placed on the distribution interface disc any longer, and power lines are not introduced in the distribution interface disc. Using the present invention, no matter whether in a fusion-distribution integration or fusion-distribution separation design, during onsite construction, a distribution disc has both strong anti-static capability and fouling-resistant capability. When the fusion-distribution integration design is used, the device cost can be reduced, the device production process can be reduced, and the device performance and the distribution density can be increased. When the fusion-distribution separation design is used, even an optical fibre fusion splice point on the distribution disc generates failure, over-high requirements may not be put forward for maintenance and construction.

    Abstract translation: 公开了一种用于实现与光通信领域有关的机盘使能方式的智能光分配接口盘的钝化的电路。 在本发明中,分发端口与分发管理分离,分发接口盘上的所有管理电路被移出,并且在分发管理盘上实现所有的控制和管理功能,以使分配接口盘电路能够钝化, 即容易被静电损坏并受污染影响的诸如集成电路,三极管等的任何有源电子器件不再放置在分配接口盘上,并且电力线不被引入分配接口盘中。 使用本发明,无论是在融合分配一体化还是熔融分配分离设计中,在现场施工中,分配盘都具有很强的抗静电能力和抗结垢能力。 当采用融合一体化设计时,可以降低设备成本,减少设备生产过程,提高设备性能和配送密度。 当使用熔融分配分离设计时,即使分配盘上的光纤熔接点产生故障,也不可能提出超高的要求进行维护和施工。

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