公开(公告)号：US20210119402A1

公开(公告)日：2021-04-22

申请号：US16692984

申请日：2019-11-22

Applicant: Lumentum Operations LLC

Inventor： Guansan CHEN ,  Sheldon MCLAUGHLIN

IPC: H01S3/067 ,  H01S3/094 ,  H01S3/16

Abstract: An optical amplifier may include an optical fiber to propagate a forward optical signal in a path of propagation of the optical amplifier. The optical fiber may have an input end face that is angled non-perpendicular to the path of propagation. The optical amplifier may include an optical component, in optical communication with the input end face of the optical fiber, to direct a backward optical emission away from the path of propagation.

公开(公告)号：US20200209485A1

公开(公告)日：2020-07-02

申请号：US16717559

申请日：2019-12-17

Applicant: Lumentum Operations LLC

Inventor： Peter David ROORDA ,  Paul COLBOURNE ,  Sheldon MCLAUGHLIN

IPC: G02B6/35 ,  H04J14/02 ,  G02B26/08

Abstract: An optical device may include a monolithic beam steering engine. The device may include a twin M×N wavelength selective switch (WSS) including a first M×N WSS and a second M×N WSS. The first M×N WSS may include a first panel section of the monolithic beam steering engine to perform first beam steering of first beams, wherein the first beam steering is add/drop port beam steering; and a second panel section of the monolithic beam steering engine to perform second beam steering of second beams, wherein the second beam steering is common port beam steering. The first M×N WSS may include a first optical element aligned to the monolithic beam steering engine to direct one of the first beams or the second beams relative to the other of the first beams or the second beams, such that the first beams are directed in a different direction from the second beams.

公开(公告)号：US20190245316A1

公开(公告)日：2019-08-08

申请号：US15889736

申请日：2018-02-06

Applicant: Lumentum Operations LLC

Inventor： Jiamin ZHENG ,  Barrie P. KEYWORTH ,  Paul COLBOURNE ,  Dhanorm PLUMWONGROT ,  Gareth Jones ,  Sheldon MCLAUGHLIN

IPC: H01S3/067 ,  H01S3/00 ,  G02B26/08 ,  H01S3/23 ,  H01S3/081 ,  H01S3/13 ,  H01S3/10 ,  G02B27/09 ,  H01S3/02

CPC classification number: H01S3/06766 ,  G02B26/0833 ,  G02B27/0955 ,  H01S3/0078 ,  H01S3/025 ,  H01S3/0811 ,  H01S3/1003 ,  H01S3/1302 ,  H01S3/1305 ,  H01S3/1608 ,  H01S3/2308

Abstract: An optical device may include a package having a first port for receiving signal light, a source for providing pump light, a combiner for combining the signal light and the pump light into combined light, a second port for sending the combined light, a third port for receiving amplified light, and a free-space optical system for filtering amplified signal light from the amplified light, and a fourth port for sending the amplified signal light. The free-space optical system may include beam shaping optics that enlarge a beam size of the amplified light prior to the filtering.

公开(公告)号：US20170302051A1

公开(公告)日：2017-10-19

申请号：US15132797

申请日：2016-04-19

Applicant: Lumentum Operations LLC

Inventor： Wei XIONG ,  Michael C. LARSON ,  Paul COLBOURNE ,  Sheldon MCLAUGHLIN

IPC: H01S3/13 ,  H01S3/10 ,  H01S3/081

CPC classification number: H01S3/1305 ,  H01S3/005 ,  H01S3/08027 ,  H01S3/08036 ,  H01S3/0811 ,  H01S3/10061 ,  H01S3/1062 ,  H01S3/1303 ,  H01S5/005 ,  H01S5/0687 ,  H01S5/141

Abstract: A device may include a first photodetector to generate a first current based on an optical power of an optical beam. The device may include a beam splitter to split a portion of the optical beam into a first beam and a second beam. The device may include a wavelength filter to filter the first beam and the second beam. The wavelength filter may filter the second beam differently than the first beam based on a difference between an optical path length of the first beam and an optical path length of the second beam through the wavelength filter. The device may include second and third photodetectors to respectively receive, after the wavelength filter, the first beam and the second beam and to generate respective second currents.

公开(公告)号：US20210356674A1

公开(公告)日：2021-11-18

申请号：US16947855

申请日：2020-08-20

Applicant: Lumentum Operations LLC

Inventor： Sheldon MCLAUGHLIN

IPC: G02B6/35

Abstract: An M×N wavelength selective switch (WSS), may comprise a common port fiber array unit (FAU) configured to emit optical beams with a lateral offset and a beam steering device configured to direct optical beams with an angular offset to add/drop port optical fibers of an add/drop port FAU. The common port FAU may comprise a first set of common port optical fibers arranged in a first column of the common port FAU and a second set of common port optical fibers arranged in a second column of the common port FAU. The second column of the common port FAU may be laterally offset from the first column of the common port FAU. The beam steering device may be configured to selectively direct, in two dimensions, the optical beams with the angular offset to the add/drop port optical fibers.

公开(公告)号：US20160341901A1

公开(公告)日：2016-11-24

申请号：US15167459

申请日：2016-05-27

Applicant: Lumentum Operations LLC

Inventor： Sheldon MCLAUGHLIN

IPC: G02B6/293 ,  G02B6/35 ,  G02B5/12 ,  G02B17/08 ,  G02B5/18

CPC classification number: G02B6/29313 ,  G01J3/02 ,  G01J3/0205 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0243 ,  G01J3/0256 ,  G01J3/0291 ,  G01J3/1804 ,  G01J3/22 ,  G02B5/12 ,  G02B5/1809 ,  G02B5/1814 ,  G02B5/1866 ,  G02B6/2931 ,  G02B6/29311 ,  G02B6/2938 ,  G02B6/354 ,  G02B17/0856 ,  G02B2005/1804

Abstract: A compact wavelength dispersing device and a wavelength selective optical switch based on the wavelength dispersing device is described. The wavelength dispersing device has a folding mirror that folds the optical path at least three times. A focal length of a focusing coupler of the device is reduced and the NA is increased, while the increased optical aberrations are mitigated by using an optional coma-compensating wedge. A double-pass arrangement for a transmission diffraction grating allows further focal length and overall size reduction due to increased angular dispersion.