公开(公告)号：US11862942B2

公开(公告)日：2024-01-02

申请号：US16948700

申请日：2020-09-29

Applicant: Lumentum Operations LLC

Inventor： Mohammad Ali Shirazi Hosseini Dokht ,  Matthew Glenn Peters ,  John Michael Miller

IPC: H01S5/42 ,  G02B27/42 ,  G02B27/30

CPC classification number: H01S5/423 ,  G02B27/30 ,  G02B27/425

Abstract: A VCSEL array may include a semiconductor substrate and a plurality of emitters on the substrate that conforms to an emitter pattern. The emitter pattern may be oriented at a non-zero angle to an edge of the substrate and may comprise two or more unit cells arranged to form the emitter pattern. Each unit cell, of the two or more unit cells, may include a same number of emitters, and the two or more unit cells may be arranged to cause a measurement of misalignment associated with two adjacent unit cells, of the two or more unit cells, to satisfy a misalignment threshold.

公开(公告)号：US11016227B2

公开(公告)日：2021-05-25

申请号：US16040223

申请日：2018-07-19

Applicant: Lumentum Operations LLC

Inventor： John Michael Miller ,  Stephen Bagnald

IPC: G02B5/18 ,  G02B1/118 ,  G02B27/42

Abstract: A diffractive optical element may include sub-wavelength period stack-and-gap structured layers providing transmissive phase delay at a wavelength. The sub-wavelength period stack-and-gap structured layers may include a set of thin anti-reflection layers that are index matched to an environment or a substrate over a range of fill factors of the sub-wavelength period.

公开(公告)号：US09720147B2

公开(公告)日：2017-08-01

申请号：US14229399

申请日：2014-03-28

Applicant: Lumentum Operations LLC

Inventor： John Michael Miller ,  Hery Djie ,  Patrick Lu ,  Xiaowei Guo ,  Qinghong Du ,  Eddie Chiu ,  Chester Murley

IPC: G02B5/18 ,  G02B1/10 ,  B29D11/00 ,  G03F7/00

CPC classification number: G02B5/1861 ,  B29D11/00769 ,  G02B1/10 ,  G02B5/1814 ,  G02B5/1857 ,  G02B5/208 ,  G03F7/001

Abstract: A reflective diffraction grating and a fabrication method are provided. The reflective diffraction grating includes a substrate, a UV-absorbing layer, a grating layer having a binary surface-relief pattern formed therein, and a conforming reflective layer. Advantageously, the UV-absorbing layer absorbs light at a UV recording wavelength to minimize reflection thereof by the substrate during holographic patterning at the UV recording wavelength.

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：US11762134B2

公开(公告)日：2023-09-19

申请号：US17303194

申请日：2021-05-24

Applicant: Lumentum Operations LLC

Inventor： John Michael Miller ,  Stephen Bagnald

IPC: G02B5/18 ,  G02B1/118 ,  G02B27/42 ,  G03F7/00 ,  G03F7/20

CPC classification number: G02B5/1809 ,  G02B1/118 ,  G02B5/1819 ,  G02B5/1866 ,  G02B5/1876 ,  G02B27/4205 ,  G03F7/001 ,  G03F7/70308

Abstract: A diffractive optical element may include sub-wavelength period stack-and-gap structured layers providing transmissive phase delay at a wavelength. The sub-wavelength period stack-and-gap structured layers may include a set of thin anti-reflection layers that are index matched to an environment or a substrate over a range of fill factors of the sub-wavelength period.

公开(公告)号：US10802183B2

公开(公告)日：2020-10-13

申请号：US16289334

申请日：2019-02-28

Applicant: Lumentum Operations LLC

Inventor： John Michael Miller ,  Gonzalo Wills ,  Lu Tian ,  Michael O'Leary

IPC: G02B5/18 ,  G02B27/42

Abstract: A diffraction grating may include a substrate. The diffraction grating may include an etch stop layer to prevent etching of the substrate. The etch stop layer may be deposited on the substrate. The diffraction grating may include a marker layer to indicate an etch end-point associated with etching of a dielectric layer. The marker layer may be deposited on a portion of the etch stop layer. The diffraction grating may include the dielectric layer to form a grating layer after being etched. The dielectric layer may be deposited on at least the marker layer.

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：US20170199374A1

公开(公告)日：2017-07-13

申请号：US15470423

申请日：2017-03-27

Applicant: Lumentum Operations LLC

Inventor： John Michael Miller ,  Wenlin JIN

IPC: G02B26/08 ,  H01S5/06 ,  G02B5/18

CPC classification number: G02B26/0808 ,  G02B5/18 ,  G02B5/1861 ,  G02B26/0833 ,  G02B26/0841 ,  H01S5/06

Abstract: A diffractive MEMS device has an in-plane binary reflective diffraction pattern formed in an outer surface of a tillable platform. The binary reflective diffraction pattern includes rectangular or trapezoidal ridges and valleys, or grooves, of a same depth. The binary reflective diffractive pattern has a high diffraction efficiency even though the surfaces of the “grooves” or “ridges” are not perpendicular to the incoming optical beam. The diffractive pattern is supported by a pair of torsional hinges and is tiltable by an electrostatic actuator. The electrostatic actuator can include at least one side electrode for linearization of dependence of tilt angle on the voltage applied to the actuator.

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.

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。