公开(公告)号：US09941955B2

公开(公告)日：2018-04-10

申请号：US15136958

申请日：2016-04-24

Applicant: Lumentum Operations LLC

Inventor： Ian Breukelaar ,  Yi Liang ,  Shane H. Woodside ,  Barrie Keyworth ,  Wayne Bonnet ,  Peter David Roorda ,  Brandon C. Collings ,  Brian Smith

IPC: G02F1/00 ,  H04B10/032 ,  H04J14/02 ,  H04Q11/00

CPC classification number: H04B10/032 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0217 ,  H04Q11/0005 ,  H04Q11/0062 ,  H04Q2011/0026 ,  H04Q2011/003 ,  H04Q2011/0037 ,  H04Q2011/0081

Abstract: A method may include receiving, by a switching engine, an optical signal that includes a channel. The method may include applying, by the switching engine, a first beam steering grating to direct a first portion of the channel to a first output port. The method may include applying, by the switching engine, one or more second beam steering gratings to direct at least one of a second portion of the channel to a second output port, or a third portion of the channel to a photodetector. The third portion may be approximately less, in power, than 10 percent of the channel.

公开(公告)号：US09250391B2

公开(公告)日：2016-02-02

申请号：US14733378

申请日：2015-06-08

Applicant: Lumentum Operations LLC

Inventor： Sheldon McLaughlin ,  Peter David Roorda ,  Paul Colbourne ,  Barrie Keyworth

IPC: G02B6/35 ,  G02B26/08 ,  G02B27/10

CPC classification number: G02B6/3534 ,  B81B7/04 ,  G02B6/3512 ,  G02B6/3518 ,  G02B6/3546 ,  G02B6/3556 ,  G02B26/0833 ,  G02B27/106 ,  G02B27/1086 ,  G02B27/1093 ,  G02B27/42

Abstract: A multicast optical switch uses a diffractive bulk optical element, which splits at least one input optical beam into sub-beams, which freely propagate in a medium towards an array of directors, such as MEMS switches, for directing the sub-beams to output ports. Freely propagating optical beams can cross each other without introducing mutual optical loss. The amount of crosstalk is limited by scattering in the optical medium, which can be made virtually non-existent. Therefore, the number of the crossover connections, and consequently the number of inputs and outputs of a multicast optical switch, can be increased substantially without a loss or a crosstalk penalty.

公开(公告)号：US09866315B2

公开(公告)日：2018-01-09

申请号：US15136675

申请日：2016-04-22

Applicant: Lumentum Operations LLC

Inventor： Barrie Keyworth ,  John Michael Miller ,  Andrew Parks ,  Dan Burke ,  Peter David Roorda ,  Brandon C. Collings ,  Brian Smith

IPC: H04J14/02 ,  H04B10/032 ,  H04Q11/00

CPC classification number: H04B10/032 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0217 ,  H04Q11/0005 ,  H04Q11/0062 ,  H04Q2011/0026 ,  H04Q2011/003 ,  H04Q2011/0037 ,  H04Q2011/0081

Abstract: A method may include receiving, by a switching engine, an optical signal. The optical signal may carry a super-channel that includes a plurality of sub-carriers to be directed toward respective output ports. The switching engine may have a plurality of regions of pixels on which respective sub-carriers, of the plurality of sub-carriers, are incident. The method may include applying, by the switching engine, respective single beam steering gratings to first, overlapping, areas of the plurality of regions of pixels. The method may include applying, by the switching engine, one or more respective pluralities of beam steering gratings to second, overlapping areas of the plurality of regions of pixels. The method may include directing, based on the single beam steering gratings and the one or more pluralities of beam steering gratings, parts of the optical signal toward the respective output ports.

公开(公告)号：US09575260B2

公开(公告)日：2017-02-21

申请号：US15087364

申请日：2016-03-31

Applicant: Lumentum Operations LLC

Inventor： Barrie Keyworth ,  Paul Colbourne

IPC: G02B6/32 ,  G02B6/35 ,  G02B6/27 ,  G02B6/293

CPC classification number: G02B6/3594 ,  G02B6/272 ,  G02B6/2766 ,  G02B6/29305 ,  G02B6/32 ,  G02B6/3512 ,  G02B6/3514 ,  G02B6/3518 ,  G02B6/3534 ,  G02B6/3546 ,  G02B6/3556 ,  G02B6/356

Abstract: The number of wavelength selective switch (WSS) units in a WSS device can be doubled by using polarization properties of optical beams propagating through the WSS device. Beams from different WSS units are orthogonally polarized at the front end, propagated through collimator, wavelength dispersing element, and a focusing element, and impinge on a polarizing beamsplitter, which directs sub-beams at different polarizations to different directing elements of a director array. A polarization diversity configuration at the back end can be used to reduce polarization dependent loss.

Abstract translation: 通过使用通过WSS器件传播的光束的偏振特性，WSS器件中的波长选择开关（WSS）单元的数量可以加倍。 来自不同WSS单元的光束在前端正交极化，通过准直器，波长分散元件和聚焦元件传播，并且撞击在偏振分束器上，偏振分束器将不同偏振的子光束引导到导向器阵列的不同导向元件。 后端的极化分集结构可用于减少偏振相关损耗。

公开(公告)号：US09304257B2

公开(公告)日：2016-04-05

申请号：US14230397

申请日：2014-03-31

Applicant: Lumentum Operations LLC

Inventor： Barrie Keyworth ,  Paul Colbourne

IPC: G02B6/36 ,  G02B6/27 ,  G02B6/35 ,  G02B6/32

CPC classification number: G02B6/3594 ,  G02B6/272 ,  G02B6/2766 ,  G02B6/29305 ,  G02B6/32 ,  G02B6/3512 ,  G02B6/3514 ,  G02B6/3518 ,  G02B6/3534 ,  G02B6/3546 ,  G02B6/3556 ,  G02B6/356

Abstract: The number of wavelength selective switch (WSS) units in a WSS device can be doubled by using polarization properties of optical beams propagating through the WSS device. Beams from different WSS units are orthogonally polarized at the front end, propagated through collimator, wavelength dispersing element, and a focusing element, and impinge on a polarizing beamsplitter, which directs sub-beams at different polarizations to different directing elements of a director array. A polarization diversity configuration at the back end can be used to reduce polarization dependent loss.

Abstract translation: 通过使用通过WSS器件传播的光束的偏振特性，WSS器件中的波长选择开关（WSS）单元的数量可以加倍。 来自不同WSS单元的光束在前端正交极化，通过准直器，波长分散元件和聚焦元件传播，并且撞击在偏振分束器上，偏振分束器将不同偏振的子光束引导到导向器阵列的不同导向元件。 后端的极化分集结构可用于减少偏振相关损耗。