公开(公告)号：US20170168339A1

公开(公告)日：2017-06-15

申请号：US15442082

申请日：2017-02-24

Applicant: Lumentum Operations LLC

Inventor： Keith Anderson ,  John Michael Miller ,  Hery Djie ,  Lu Tian

IPC: G02F1/13363 ,  G02F1/1341 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1343

CPC classification number: G02B5/3058 ,  G02F1/133553 ,  G02F1/13363 ,  G02F1/134309 ,  G02F1/13439 ,  G02F2001/133567 ,  G02F2001/133638 ,  G02F2201/305 ,  G02F2201/307 ,  G02F2203/50

Abstract: A sub-wavelength thin-film metal grating is placed inside a liquid crystal variable optical retarder at a selected distance from a reflective electrode to form a reflective half wave plate, thereby reducing polarization dependence of the optical retardation generated by the variable optical retarder. The approach enables to form within the device the reflective half wave plate that is suitably thin without modifying the reflective electrode of the device.

公开(公告)号：US11451012B2

公开(公告)日：2022-09-20

申请号：US16949702

申请日：2020-11-11

Applicant: Lumentum Operations LLC

Inventor： Xiaohua Lou ,  Delai Zhou ,  Hery Djie

IPC: H01S5/42 ,  H01L27/15 ,  H01S5/065 ,  H01S5/042 ,  H01S5/343 ,  H01S5/22 ,  H01S5/187 ,  H01S5/028

Abstract: A vertical cavity surface emitting laser (VCSEL) array may comprise a first subset of VCSELs of a plurality of VCSELs, and a second subset of VCSELs of the plurality of VCSELs. One or more first beams to be emitted by the first subset of VCSELs, when the VCSEL array is powered, and one or more second beams to be emitted by the second subset of VCSELs, when the VCSEL array is powered, may have different patterns of areas of energy intensity. The different patterns of areas of energy intensity may include respective areas of high energy intensity and respective areas of low energy intensity.

公开(公告)号：US09632225B2

公开(公告)日：2017-04-25

申请号：US14798764

申请日：2015-07-14

Applicant: Lumentum Operations LLC

Inventor： John Michael Miller ,  Joel Milgram ,  Karen Denise Hendrix ,  Michael O'Leary ,  Hery Djie ,  Lu Tian ,  Paul Colbourne

IPC: G02B5/30 ,  G02B1/11 ,  G02B1/12 ,  G03F7/00

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.