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公开(公告)号：US12001057B2
公开(公告)日：2024-06-04
申请号：US17648765
申请日：2022-01-24
Applicant: Lumentum Operations LLC
Inventor： Adrian Perrin Janssen
CPC classification number: G02B6/2935 , G02B6/12007 , H04B10/2589 , H04J14/0208 , G02B2006/12159 , H04B10/40 , H04J14/02 , H04J14/0265 , H04J14/0307 , H04Q2011/0016
Abstract: A bidirectional optical device includes a first optical component, wherein a portion of a first interface of the first optical component has a reflector coating, wherein a second interface of the first optical component has an optical coating, and wherein the first optical component includes an internal splitting interface disposed between the first interface and the second interface, and a second optical component including a reflector aligned to the second interface of the first optical component, wherein the first optical component and the second optical component comprise an unbalanced Mach-Zehnder (MZ) interferometer.
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公开(公告)号：US11460347B2
公开(公告)日：2022-10-04
申请号：US16949715
申请日：2020-11-11
Applicant: Lumentum Operations LLC
Inventor： Colin Smith , Adrian Perrin Janssen , Stuart Conley
Abstract: An optical locker may include an assembly. The assembly may include a beam splitter, configured to split an input beam into at least three beams; an etalon having at least three regions, positioned so that each beam passes through a different region; a detector configured to measure output intensities, Tn, of the etalon for the beam; and a controller configured to determine a ratio, Ta/Tb, of the output intensities, wherein that ratio has a slope at the output intensities which is above a threshold, obtain a target frequency of the input beam, and determine an actual frequency of the input beam based on the target frequency and the ratio of the output intensities.
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公开(公告)号：US12032173B2
公开(公告)日：2024-07-09
申请号：US17449392
申请日：2021-09-29
Applicant: Lumentum Operations LLC
Inventor： Adrian Perrin Janssen , Nivesh Mangal
CPC classification number: G02B27/14 , G01J1/0414 , G01J1/44 , G02B27/108
Abstract: An optical assembly includes an optical cavity; an output detector; a reference detector; and a plate beam splitter, wherein the plate beam splitter has a first face and a second face, and is configured to form, from an input beam: a first output beam, that passes through the optical cavity and impinges the output detector, a first reference beam that impinges on the reference detector, a second output beam parallel to the first output beam, and a second reference beam parallel to the first reference beam; one of the first output beam or the first reference beam is a reflection of the input beam in the first face of the plate beam splitter; the output detector is configured to exclude at least a portion of the second output beam; and the reference detector is configured to exclude at least a portion of the second reference beam.
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公开(公告)号：US11662508B2
公开(公告)日：2023-05-30
申请号：US17526827
申请日：2021-11-15
Applicant: Lumentum Operations LLC
Inventor： Adrian Perrin Janssen , Robert Simpson , Paul Firth
CPC classification number: G02B5/284 , G01J9/0246 , G02B17/006 , G01J2009/0257
Abstract: In some implementations, an optical assembly comprises an optical cavity; one or more detectors; and an optical component having an input face and an output face configured to receive an input beam to the input face and to produce one or more primary output beams, and a plurality of secondary output beams from the output face, the secondary output beams resulting from multiple internal reflections within the optical component. At least one of the input face is not perpendicular to the input beam or the output face is not perpendicular to the one or more primary output beams. Each primary output beam is transmitted through the optical cavity perpendicular to at least one surface of the optical cavity, and directed to a respective one of the one or more detectors. Each detector is arranged to exclude at least a portion of each secondary output beam.
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