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：US10254570B2

公开(公告)日：2019-04-09

申请号：US15685584

申请日：2017-08-24

Applicant: Lumentum Operations LLC

Inventor： Dan Burke ,  Fredrik Sy

IPC: H04B10/00 ,  G02F1/025 ,  G02F1/01 ,  G02F1/377

Abstract: An electro-optic device may comprise a Mach-Zehnder modulator (MZM) and one or more components. The one or more components may apply a child DC bias with dither to arms of a first branch of the MZM and to arms of a second branch of the MZM, and determine a second harmonic of a first return signal. The one or more components may apply a child DC bias with phase-shifted dither to the arms of the first branch or to the arms of the second branch, and determine a second harmonic of a second return signal. The one or more components may determine, based on the second harmonics, whether the first branch and the second branch are operating at quadrature, and may selectively adjust parent DC biases, applied to the first branch and the second branch, based on whether the first branch and the second branch are operating at quadrature.

公开(公告)号：US10823987B2

公开(公告)日：2020-11-03

申请号：US16450758

申请日：2019-06-24

Applicant: Lumentum Operations LLC

Inventor： Dan Burke ,  Fredrik Sy ,  Josh Kemp

IPC: G02F1/025 ,  G02F1/377 ,  G02F1/225 ,  H04B10/50 ,  G02F1/01

Abstract: An electro-optic device may include a Mach-Zehnder modulator (MZM) and one or more components. The one or more components may apply a DC bias with dither to a first branch and a second branch of the MZM and to arms of the first branch, and may determine a second harmonic of a first return signal. The one or more components may apply a DC bias with phase-shifted dither to the first branch and the second branch or to the arms of the first branch, and determine a second harmonic of a second return signal. The phase-shifted dither may be out of phase from the dither and have a frequency that matches a frequency of the dither. The one or more components may determine whether arms of the second branch of the MZM are operating at null, and may selectively adjust DC biases applied to the arms of the second branch.

公开(公告)号：US20160316281A1

公开(公告)日：2016-10-27

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: H04Q11/00 ,  H04J14/02

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.

Abstract translation: 一种方法可以包括由切换引擎接收光信号。 光信号可以携带包括要指向相应输出端口的多个子载波的超级信道。 交换引擎可以具有多个像素区域，多个子载波中的各个子载波在其上入射。 该方法可以包括由开关引擎将各个单波束转向光栅应用于多个像素区域中的第一重叠区域。 该方法可以包括通过切换引擎将一个或多个相应的多个光束转向光栅应用于多个像素区域中的第二重叠区域。 该方法可以包括基于单光束转向光栅和一个或多个光束转向光栅将光信号的一部分引导到相应的输出端口。