公开(公告)号：US10473839B2

公开(公告)日：2019-11-12

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: G02B5/30 ,  G02F1/13363 ,  G02F1/1335 ,  G02F1/1343

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：US09964668B2

公开(公告)日：2018-05-08

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：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：US12188763B2

公开(公告)日：2025-01-07

申请号：US17644974

申请日：2021-12-17

Applicant: Lumentum Operations LLC

Inventor： John Michael Miller ,  Vincent V. Wong ,  Lei Yang

IPC: G01B11/25 ,  G02B27/30 ,  H01S5/42

Abstract: A dot projector may include a vertical-cavity surface-emitting laser (VCSEL). The dot projector may include one or more collimating elements to collimate light emitted by the VCSEL. An effective focal length of the one or more collimating elements may be larger than an optics length of the dot projector. The dot projector may include an optical element including a periodic optical phase function to replicate the light after collimation by the one or more collimating elements and an aberration-correcting phase function to correct spot aberrations in a dot pattern resulting from the tiling or splitting of the light.

公开(公告)号：US11804695B2

公开(公告)日：2023-10-31

申请号：US17247660

申请日：2020-12-18

Applicant: Lumentum Operations LLC

Inventor： John Michael Miller ,  Lijun Zhu ,  Huanlin Zhu ,  Benjamin Kesler ,  Ajit Vijay Barve

IPC: H01S5/183 ,  F21S8/00 ,  F21Y115/30

CPC classification number: H01S5/18302 ,  F21S8/003 ,  F21Y2115/30

Abstract: In some implementations, an emitter module may include an emitter layer including a first emitter array configured to produce a first beam that provides flood illumination, and a second emitter array configured to produce a second beam that provides spot illumination. The emitter module may include a first optics layer, positioned in front of the emitter layer, that includes a first collimating lens positioned in front of the first emitter array, and a second collimating lens positioned in front of the second emitter array. The emitter module may include a second optics layer, positioned in front of the first optics layer, that includes an optical diffuser positioned in front of the first collimating lens, and a beamsplitter grating positioned in front of the second collimating lens.

公开(公告)号：US11543562B2

公开(公告)日：2023-01-03

申请号：US16946636

申请日：2020-06-30

Applicant: Lumentum Operations LLC

Inventor： John Michael Miller ,  Stephen Bagnald

IPC: G02B5/18 ,  G02B1/115 ,  G02B27/44 ,  G02B27/42

Abstract: An optical element may include a substrate. The optical element may include a first anti-reflectance structure for a particular wavelength range formed on the substrate. The optical element may include at least one layer disposed on a portion of the first anti-reflectance structure. The optical element may include a second anti-reflectance structure for the particular wavelength range formed on the at least one layer. A depth between a first surface of the first anti-reflectance structure and a second surface of the second anti-reflectance structure, a first index of refraction of the first anti-reflectance structure, a second index of refraction of the second anti-reflectance structure, and a third index of refraction of the at least one layer may be selected to form a diffractive optical element associated with a particular phase delay for the particular wavelength.

公开(公告)号：US10768349B2

公开(公告)日：2020-09-08

申请号：US15638981

申请日：2017-06-30

Applicant: Lumentum Operations LLC

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

IPC: G02B5/18 ,  G02B5/20 ,  G02B1/10 ,  B29D11/00 ,  G03F7/00

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：US20200033509A1

公开(公告)日：2020-01-30

申请号：US16594138

申请日：2019-10-07

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 ,  G03F7/00 ,  G02B5/18 ,  G02B27/28

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：US10394015B2

公开(公告)日：2019-08-27

申请号：US15470423

申请日：2017-03-27

Applicant: Lumentum Operations LLC

Inventor： John Michael Miller ,  Wenlin Jin

IPC: G02B26/08 ,  G02B5/18 ,  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：US20180252845A1

公开(公告)日：2018-09-06

申请号：US15973109

申请日：2018-05-07

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 ,  G02B5/18 ,  G02B27/28 ,  G02B5/30 ,  G03F7/00 ,  G02B1/11

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.