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    INDIVIDUALLY ROUTABLE SUBCARRIERS
    2.
    发明申请
    INDIVIDUALLY ROUTABLE SUBCARRIERS 有权

    公开(公告)号：US20220116119A1

    公开(公告)日：2022-04-14

    申请号：US17561830

    申请日：2021-12-24

    Applicant: Infinera Corporation

    Inventor： Kuang-Tsan Wu ,  Matthew L. Mitchell

    IPC: H04B10/61 ,  H04B10/548 ,  H04B10/50 ,  H04B10/67 ,  H04J14/02 ,  H04B10/54 ,  H04J14/06 ,  H04B10/69 ,  H04B10/40

    Abstract: Consistent with an aspect of the present disclosure, electrical signals or digital subcarriers are generated in a DSP based on independent input data streams. Drive signals are generated based on the digital subcarriers, and such drive signals are applied to an optical modulator, including, for example, a Mach-Zehnder modulator. The optical modulator modulates light output from a laser based on the drive signals to supply optical subcarriers corresponding to the digital subcarriers. These optical subcarriers may be received by optical receivers provided at different locations in an optical communications network, where the optical subcarrier may be processed, and the input data stream associated with such optical subcarrier is output. Accordingly, instead of providing multiple lasers and modulators, for example, data is carried by individual subcarriers output from an optical source including one laser and modulator. Thus, a cost associated with the network may be reduced. Moreover, each of the subcarriers may be detected by a corresponding one of a plurality of receivers, each of which being provided in a different location in the optical communication network. Thus, receivers need not be co-located, such that the network has improved flexibility.

    OPTICAL LINK PROTECTION USING COMMON MODULATION OF MULTIPLE COMBINED WAVELENGTHS
    5.
    发明申请
    OPTICAL LINK PROTECTION USING COMMON MODULATION OF MULTIPLE COMBINED WAVELENGTHS 有权
    使用多个组合波长的共同调制的光链路保护

    公开(公告)号：US20160112118A1

    公开(公告)日：2016-04-21

    申请号：US14515090

    申请日：2014-10-15

    Applicant: Infinera Corporation

    Inventor： Jeffrey T. RAHN ,  Matthew L. Mitchell

    IPC: H04B10/032

    CPC classification number: H04B10/032 ,  H04B10/506

    Abstract: An optical transmitter may include one or more lasers configured to provide a primary optical signal having a primary wavelength and a secondary optical signal having a secondary wavelength to a modulator via corresponding first and second modulator inputs. The modulator may combine the primary and secondary optical signals into a combined optical signal and modulate, with an electrical signal, the combined optical signal to provide a modulated optical signal to an optical filter. The optical filter may be configured to separate, from the modulated optical signal, a modulated primary optical signal having the primary wavelength and a modulated secondary optical signal having the secondary wavelength and provide the modulated primary optical signal to a primary optical link and the modulated secondary optical signal to a secondary optical link.

    Abstract translation: 光发射机可以包括一个或多个激光器，其配置成通过相应的第一和第二调制器输入向调制器提供具有初级波长的初级光信号和具有次级波长的次级光信号。 调制器可以将主光信号和次光信号组合成组合的光信号，并用电信号调制组合的光信号以向光滤波器提供经调制的光信号。 光滤波器可以被配置为从调制的光信号中分离具有主波长的调制的初级光信号和具有次级波长的调制次级光信号，并将调制的初级光信号提供给主光链路，并将调制的次级光信号 光信号到次光链路。

    INDIVIDUALLY ROUTABLE SUBCARRIERS
    6.
    发明申请
    INDIVIDUALLY ROUTABLE SUBCARRIERS 有权

    公开(公告)号：US20220116118A1

    公开(公告)日：2022-04-14

    申请号：US17561822

    申请日：2021-12-24

    Applicant: Infinera Corporation

    Inventor： Kuang-Tsan Wu ,  Matthew L. Mitchell

    IPC: H04B10/61 ,  H04J14/06 ,  H04B10/548 ,  H04B10/50 ,  H04B10/54 ,  H04B10/40 ,  H04B10/69 ,  H04J14/02 ,  H04B10/67

    Abstract: Consistent with an aspect of the present disclosure, electrical signals or digital subcarriers are generated in a DSP based on independent input data streams. Drive signals are generated based on the digital subcarriers, and such drive signals are applied to an optical modulator, including, for example, a Mach-Zehnder modulator. The optical modulator modulates light output from a laser based on the drive signals to supply optical subcarriers corresponding to the digital subcarriers. These optical subcarriers may be received by optical receivers provided at different locations in an optical communications network, where the optical subcarrier may be processed, and the input data stream associated with such optical subcarrier is output. Accordingly, instead of providing multiple lasers and modulators, for example, data is carried by individual subcarriers output from an optical source including one laser and modulator. Thus, a cost associated with the network may be reduced. Moreover, each of the subcarriers may be detected by a corresponding one of a plurality of receivers, each of which being provided in a different location in the optical communication network. Thus, receivers need not be co-located, such that the network has improved flexibility.

    Reduction of wavelength selective switch (WSS) filter-based impairment using differentiated channel modulation formats
    8.
    发明授权
    Reduction of wavelength selective switch (WSS) filter-based impairment using differentiated channel modulation formats 有权

    公开(公告)号：US10070206B2

    公开(公告)日：2018-09-04

    申请号：US14586106

    申请日：2014-12-30

    Applicant: Infinera Corporation

    Inventor： Matthew L. Mitchell

    IPC: H04B10/00 ,  H04Q11/00 ,  H04J14/02 ,  H04B10/079

    Abstract: A method may include transmitting, by an optical device, a first set of channels using a first modulation format. The first set of channels may be attenuated during transmission by a filter associated with a wavelength selective switch. The method may further include transmitting, by the optical device, a second set of channels using a second modulation format. The second set of channels may be attenuated during transmission by the filter associated with the wavelength selective switch. The first set of channels and the second set of channels may be included in a super-channel. The first modulation format may be selected based on a first signal quality factor associated with attenuation by the filter associated with the wavelength selective switch. The second modulation format may be selected based on a second signal quality factor associated with attenuation by the filter associated with the wavelength selective switch.

    Optical link protection using common modulation of multiple combined wavelengths
    9.
    发明授权
    Optical link protection using common modulation of multiple combined wavelengths 有权
    使用多种组合波长的共同调制的光链路保护

    公开(公告)号：US09485012B2

    公开(公告)日：2016-11-01

    申请号：US14515090

    申请日：2014-10-15

    Applicant: Infinera Corporation

    Inventor： Jeffrey T. Rahn ,  Matthew L. Mitchell

    IPC: H04B10/50 ,  H04B10/032

    CPC classification number: H04B10/032 ,  H04B10/506

    Abstract: An optical transmitter may include one or more lasers configured to provide a primary optical signal having a primary wavelength and a secondary optical signal having a secondary wavelength to a modulator via corresponding first and second modulator inputs. The modulator may combine the primary and secondary optical signals into a combined optical signal and modulate, with an electrical signal, the combined optical signal to provide a modulated optical signal to an optical filter. The optical filter may be configured to separate, from the modulated optical signal, a modulated primary optical signal having the primary wavelength and a modulated secondary optical signal having the secondary wavelength and provide the modulated primary optical signal to a primary optical link and the modulated secondary optical signal to a secondary optical link.

    Abstract translation: 光发射机可以包括一个或多个激光器，其配置成通过相应的第一和第二调制器输入向调制器提供具有初级波长的初级光信号和具有次级波长的次级光信号。 调制器可以将主光信号和次光信号组合成组合的光信号，并用电信号调制组合的光信号以向光滤波器提供经调制的光信号。 光滤波器可以被配置为从调制的光信号中分离具有主波长的调制的初级光信号和具有次级波长的调制次级光信号，并将调制的初级光信号提供给主光链路，并将调制的次级光信号 光信号到次光链路。

    Wavelength selective switch (WSS) based multiplexing architecture
    10.
    发明授权
    Wavelength selective switch (WSS) based multiplexing architecture 有权

    公开(公告)号：US09660752B2

    公开(公告)日：2017-05-23

    申请号：US14585995

    申请日：2014-12-30

    Applicant: Infinera Corporation

    Inventor： Matthew L. Mitchell

    IPC: H04B10/00 ,  H04J14/02 ,  H04Q11/00

    CPC classification number: H04J14/0212 ,  H04J14/0221 ,  H04J14/0298 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0071 ,  H04Q11/0005 ,  H04Q2011/0015 ,  H04Q2011/0032

    Abstract: An apparatus may include a plurality of wavelength selective switches (WSSs). The apparatus may include a plurality of transmitters. The transmitters may transmit a plurality of super-channels. The apparatus may include a plurality of passive power splitters corresponding to the plurality of transmitters. The plurality of passive power splitters may receive the plurality of super-channels. The plurality of passive power splitters may generate a respective set of power-split super-channels for each super-channel of the plurality of super-channels. The plurality of passive power splitters may transmit each power-split super-channel of the respective set of power-split super-channels to a corresponding WSS of the plurality of WSSs. A WSS, of the plurality of WSSs, may receive a plurality of power-split super-channels, of the respective sets of power-split super-channels, from the plurality of passive power splitters. The WSS may selectively route a portion of the plurality of power-split super-channels toward a receiver.

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