Method and Optical Transmitter Device for Creating an Optical Binary Digital Transmit Signal

    公开(公告)号:US20180069635A1

    公开(公告)日:2018-03-08

    申请号:US15685141

    申请日:2017-08-24

    CPC classification number: H04B10/516 H04B10/504 H04B10/556 H04J14/02

    Abstract: A method for creating an optical binary digital transmit signal to be supplied to an optical transmission link including: operating an optical transmitter in such a state that mode hopping occurs between a predefined first and a predefined second optical mode of the optical transmitter if a binary digital modulation signal is supplied to the optical transmitter and creating a modulated optical output signal of the optical transmitter corresponding to the binary digital modulation signal supplied to the optical transmitter. The modulated optical output signal is optically filtered in such a way that at least a portion of the optical power spectrum of the modulated optical output signal caused by a selected one of the first and second optical modes is suppressed or at least substantially attenuated.

    Optical WDM Transmission Network
    36.
    发明申请
    Optical WDM Transmission Network 有权
    光WDM传输网络

    公开(公告)号:US20160329966A1

    公开(公告)日:2016-11-10

    申请号:US15091611

    申请日:2016-04-06

    Abstract: The invention relates to an optical WDM transmission network including at least one optical line terminal, a remote node and a plurality of optical network units. The at least one optical line terminal is connected to the optical remote node via an optical WDM path. Each optical network unit is connected to the optical remote node via an optical distribution path.

    Abstract translation: 本发明涉及一种包括至少一个光线路终端,远程节点和多个光网络单元的光WDM传输网络。 所述至少一个光线路终端经由光WDM路径连接到所述光学远程节点。 每个光网络单元经由光分配路径连接到光学远程节点。

    Method, transmitter and receiver device for transmitting a binary digital transmit signal over an optical transmission link
    37.
    发明授权
    Method, transmitter and receiver device for transmitting a binary digital transmit signal over an optical transmission link 有权
    用于通过光传输链路发送二进制数字发射信号的方法,发射机和接收机设备

    公开(公告)号:US09215116B2

    公开(公告)日:2015-12-15

    申请号:US14468132

    申请日:2014-08-25

    Inventor: Michael Eiselt

    Abstract: A method for transmitting a binary digital transmit signal over an optical transmission link includes creating a differential optical duobinary signal, supplying the differential optical duobinary signal to a first end of the optical transmission link, transmitting the differential optical duobinary signal to a second end of the optical transmission link, and receiving the differential optical duobinary signal as a receive signal at the second end of the optical transmission link. The differential optical duobinary signal may be created by pre-coding the binary digital transmit signal having a given bit interval (T) in two pre-coding steps each with a signal delay of a single bit interval or in a single pre-coding step with a signal delay of twice the bit interval. In each case the pre-coding applies a non-XOR or equivalent operation.

    Abstract translation: 一种用于通过光传输链路发送二进制数字发射信号的方法包括:产生差分光双二进制信号,将差分光双二进制信号提供给光传输链路的第一端,将差分光双二进制信号传输到第二端 光传输链路,并且在光传输链路的第二端接收差分光双二进制信号作为接收信号。 差分光学双二进制信号可以通过在具有单个位间隔的信号延迟的两个预编码步骤中或在单个预编码步骤中对具有给定位间隔(T)的二进制数字发射信号进行预编码来创建, 信号延迟是位间隔的两倍。 在每种情况下,预编码都应用非XOR或等效操作。

    Protected Optical Single-Fiber WDM System

    公开(公告)号:US20140226987A1

    公开(公告)日:2014-08-14

    申请号:US14180295

    申请日:2014-02-13

    Abstract: The invention relates to a protected optical single-fiber WDM system. A first (3) and a second (5) head-end terminal and at least one optical add/drop filter device (11) are connected to form a chain-like transmission path, each of the first and second head-end terminals (3, 5) being connected, at a WDM port (3a, 5a), through a single optical fiber (13) to a western (11a) or an eastern WDM port (11d) of an adjacent one of the optical add/drop filter devices (11), respectively, and each of the optical add/drop filter devices (11) being connected, at an eastern or western WDM port (11d, 11a), to a western or eastern WDM port (11a, 11d) of an adjacent one of the optical add/drop filter devices (11), respectively. At least one tail-end terminal (9) is connected to each optical add/drop filter device (11), wherein a first (9a) and a second (9b) channel port of the respective add/drop tail-end terminal (9) is connected to a dedicated first (11b) and second (11c) channel port of the optical add/drop filter device (11) through a respective optical fiber (15,17). The head-end terminals (3, 5), the optical add/drop filter devices (11) and the tail-end terminals (9) are adapted to selectively or simultaneously establish a bidirectional communication between each tail-end terminal (9) and the first and second head-end terminal (3, 5), wherein each tail-end terminal (9) bidirectionally communicates through its first channel port (9a) with the first head-end terminal (3) and bidirectionally communicates through its second channel port (9b) with the second head-end terminal (5), one of these communication paths serving as a working communication path and the other of these communication paths serving as a protection path, wherein for the communication between each of the tail-end terminals (9) and the first and second head-end terminal (3, 5), respectively, dedicated optical channel signals lying in a first wavelength band and a second wavelength band are used for each transmission direction, the first and second wavelength band revealing no overlap and the optical channel signals in each wavelength band forming, in each transmission direction in the chain-like transmission path, respective optical WDM signals.

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