公开(公告)号：US20180337746A1

公开(公告)日：2018-11-22

申请号：US15685526

申请日：2017-08-24

Applicant: Lumentum Operations LLC

Inventor： Paul COLBOURNE ,  Sheldon Mclaughlin

IPC: H04J14/02 ,  G02B6/27 ,  H04Q11/00

Abstract: A wavelength selective switch (WSS) may include a first set of ports, each to launch a respective beam of a first set of beams, wherein the first set of beams is provided to a first position on a focal plane, and wherein a first set of wavelength channel sub-beams, included in a beam of the first set of beams, is to be incident on a particular section of a switching array. The WSS may include a second set of ports, each to launch a respective beam of a second set of beams, wherein the second set of beams is provided to a second position on the focal plane, wherein the second position is different from the first position, and wherein a second set of wavelength channel sub-beams, included in a beam of the second set of beams, is to be incident on the particular section of the switching array.

公开(公告)号：US20170099531A1

公开(公告)日：2017-04-06

申请号：US15383368

申请日：2016-12-19

Applicant: Lumentum Operations LLC

Inventor： Paul COLBOURNE

IPC: H04Q11/00

CPC classification number: H04Q11/0005 ,  H04Q2011/0015 ,  H04Q2011/0026 ,  H04Q2011/003 ,  H04Q2011/0035 ,  H04Q2011/0047

Abstract: A free-space MCS may include an input port to launch a beam of light, N output ports, a beam splitter to split the beam of light into N portions, and a deflector array including N deflectors aligned in an array direction. Each deflector may have an active region with a size in the array direction that matches a size in the array direction of a portion, of the N portions, incident thereon. The free-space MCS may include first beam shaping optics to form a first elliptical beam spot at the beam splitter with a major axis substantially perpendicular to the switching direction, and an angle-to-offset element to direct each of the N portions from the beam splitter to a different deflector of the N deflectors. Each of the N portions may have, at the deflector, a second elliptical beam spot with a major axis substantially parallel to the switching direction.

公开(公告)号：US20230333228A1

公开(公告)日：2023-10-19

申请号：US17823251

申请日：2022-08-30

Applicant: Lumentum Operations LLC

Inventor： Christopher DOERR ,  Paul COLBOURNE

IPC: G01S7/497 ,  G02B6/12 ,  G01S7/481 ,  G01S7/4861 ,  G01S7/4913

CPC classification number: G01S7/497 ,  G02B6/12007 ,  G01S7/4817 ,  G01S7/4861 ,  G01S7/4913 ,  G02B6/29353

Abstract: An optical system may include a scanning element, a detector, and a planar lightwave circuit (PLC)-based walk-off compensator. The PLC-based walk-off compensator may include a plurality of input waveguides associated with receiving an optical signal from the scanning element. The PLC-based walk-off compensator may include an optical switch configured to select one or more input waveguides, from the plurality of input waveguides, to be coupled to the detector. The selection of the one or more input waveguides may be based on an expected walk-off of the optical signal. The PLC-based walk-off compensator may include an output waveguide to provide the optical signal to the detector.

公开(公告)号：US20190238252A1

公开(公告)日：2019-08-01

申请号：US16376977

申请日：2019-04-05

Applicant: Lumentum Operations LLC

Inventor： Paul COLBOURNE ,  Brian SMITH

IPC: H04J14/02

CPC classification number: H04J14/0212

Abstract: A first configuration of an optical node may include a set of degrees, each including an inbound wavelength selective switch (WSS) and an outbound WSS. The first configuration may include a first degree expansion including a first inbound expansion WSS and a first outbound expansion WSS. An expansion input of the first inbound expansion WSS may connect to an expansion output of a second outbound expansion WSS included in a second degree expansion of a second configuration of the optical node. An expansion output of the first outbound expansion WSS may connect to an expansion input of a second inbound expansion WSS included in the second degree expansion of the second configuration. A signal input to an inbound WSS of a given one of the set of degrees may be routed, via the first degree expansion and the second degree expansion, to any drop port included in the second configuration.

公开(公告)号：US20180316991A1

公开(公告)日：2018-11-01

申请号：US16013285

申请日：2018-06-20

Applicant: Lumentum Operations LLC

Inventor： Paul COLBOURNE

IPC: H04Q11/00 ,  H04J14/02

CPC classification number: H04Q11/0005 ,  H04J14/0212 ,  H04Q2011/0009

Abstract: An optical node may include D (D≥2) input ports, D output ports, and D degrees. Each degree may include an inbound M×N (M≥D, N≥2D) WSS and an outbound M×N WSS. Each inbound M×N WSS may include an input connected to one of the D input ports; inputs connected to outputs of inbound M×N WSSs of the other degrees; outputs connected to inputs of outbound M×N WSSs of the other degrees; outputs connected to inputs of inbound M×N WSSs of the other degrees; and a local drop port. Each outbound M×N WSS may include an output connected to one of the D input ports; outputs connected to inputs of outbound M×N WSSs of the other degrees; inputs connected to outputs of inbound M×N WSSs of the other degrees; inputs connected to outputs of outbound M×N WSSs of the other degrees; and a local add port.

公开(公告)号：US20170307785A1

公开(公告)日：2017-10-26

申请号：US15495265

申请日：2017-04-24

Applicant: Lumentum Operations LLC

Inventor： John Michael Miller ,  Joel MILGRAM ,  Karen Denise HENDRIX ,  Michael O’LEARY ,  Hery DJIE ,  Lu TIAN ,  Paul COLBOURNE

IPC: G02B1/12 ,  G02B5/30 ,  G02B1/11 ,  G02B5/18 ,  G03F7/00 ,  G02B27/28

CPC classification number: G02B1/12 ,  G02B1/11 ,  G02B5/1809 ,  G02B5/3083 ,  G02B27/286 ,  G03F7/0005

Abstract: A zoned waveplate has a series of transversely stacked birefringent zones alternating with non-birefringent zones. The birefringent and non-birefringent zones are integrally formed upon an AR-coated face of a single substrate by patterning the AR coated face of the substrate with zero-order sub-wavelength form-birefringent gratings configured to have a target retardance. The layer structure of the AR coating is designed to provide the target birefringence in the patterned zones and the reflection suppression.

公开(公告)号：US20170123161A1

公开(公告)日：2017-05-04

申请号：US15345456

申请日：2016-11-07

Applicant: Lumentum Operations LLC

Inventor： Paul COLBOURNE

IPC: G02B6/35 ,  G02B6/34 ,  G02B6/32

CPC classification number: G02B6/356 ,  G02B6/32 ,  G02B6/34 ,  G02B6/3518

Abstract: An optical cross-connect including two deflector arrays optically separated by an angle-to-offset (ATO) element, wherein each deflector array includes a plurality of deflectors aligned in an array direction, each deflector array having a switching direction substantially perpendicular to the corresponding array direction, the array direction of the two deflector arrays being substantially perpendicular. Beam shaping optics convert light transmitted towards the first deflector array to have an elliptical cross-section at the first deflector array, thus providing a relatively simple and compact optical cross-connect.