公开(公告)号：US12046871B2

公开(公告)日：2024-07-23

申请号：US18073458

申请日：2022-12-01

Applicant: Quintessent Inc.

Inventor： Brian Koch ,  Michael Davenport ,  Alan Liu ,  Justin Colby Norman

IPC: G02B6/12 ,  G02B6/122 ,  H01S5/10 ,  H01S5/20 ,  H01S5/34

CPC classification number: H01S5/1014 ,  H01S5/209 ,  H01S5/34 ,  G02B6/12004 ,  G02B6/1228

Abstract: Integrated-optics systems are presented in which an optically active device is optically coupled with a silicon waveguide via a passive compound-semiconductor waveguide. In a first region, the passive waveguide and the optically active device collectively define a composite waveguide structure, where the optically active device functions as the central ridge portion of a rib-waveguide structure. The optically active device is configured to control the vertical position of an optical mode in the composite waveguide along its length such that the optical mode is optically coupled into the passive waveguide with low loss. The passive waveguide and the silicon waveguide collectively define a vertical coupler in a second region, where the passive and silicon waveguides are configured to control the distribution of the optical mode along the length of the coupler, thereby enabling the entire mode to transition between the passive and silicon waveguides with low loss.

公开(公告)号：US11733457B2

公开(公告)日：2023-08-22

申请号：US17481710

申请日：2021-09-22

Applicant: Quintessent Inc.

Inventor： Brian Koch ,  Michael Davenport ,  Alan Liu

IPC: G02B6/122 ,  G02B6/12 ,  G02B6/136 ,  G02B6/13 ,  G02B6/10 ,  G02B6/124

CPC classification number: G02B6/1228 ,  G02B6/107 ,  G02B6/124 ,  G02B6/12004 ,  G02B6/1223 ,  G02B6/131 ,  G02B6/136 ,  G02B2006/12061 ,  G02B2006/12097 ,  G02B2006/12102 ,  G02B2006/12107 ,  G02B2006/12121 ,  G02B2006/12123

Abstract: Integrated-optics systems are presented in which an active-material stack is disposed on a coupling layer in a first region to collectively define an OA waveguide that supports an optical mode of a light signal. The coupling layer is patterned to define a coupling waveguide and a passive waveguide, which are formed as two abutting, optically coupled segments of the coupling layer. The lateral dimensions of the active-material stack are configured to control the shape and vertical position of the optical mode at any location along the length of the OA waveguide. The active-material stack includes a taper that narrows along its length such that the optical mode is located completely in the coupling waveguide where the coupling waveguide abuts the passive waveguide. In some embodiments, the passive layer is optically coupled with the OA waveguide and a silicon waveguide, thereby enabling light to propagate between them.

公开(公告)号：US11631967B2

公开(公告)日：2023-04-18

申请号：US17484370

申请日：2021-09-24

Applicant: Quintessent Inc.

Inventor： Brian Koch ,  Michael Davenport ,  Alan Liu ,  Justin Colby Norman

IPC: G02B6/12 ,  G02B6/122 ,  H01S5/10 ,  H01S5/20 ,  H01S5/34

Abstract: Integrated-optics systems are presented in which an optically active device is optically coupled with a silicon waveguide via a passive compound-semiconductor waveguide. In a first region, the passive waveguide and the optically active device collectively define a composite waveguide structure, where the optically active device functions as the central ridge portion of a rib-waveguide structure. The optically active device is configured to control the vertical position of an optical mode in the composite waveguide along its length such that the optical mode is optically coupled into the passive waveguide with low loss. The passive waveguide and the silicon waveguide collectively define a vertical coupler in a second region, where the passive and silicon waveguides are configured to control the distribution of the optical mode along the length of the coupler, thereby enabling the entire mode to transition between the passive and silicon waveguides with low loss.