# US 12,596,226 B2 · Monolithically integrated optical assembly > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,596,226 B2 - Document ID: US12596226B2 - Status: Granted - Kind: B2 - Application number: 18/548,223 - Filed: 2022-03-23 - Published: 2024-05-30 - Granted: 2026-04-07 - Earliest claimed: 2021-03-25 - Assignees: ams-OSRAM AG - Applicants: ams-OSRAM AG - Inventors: Victor Sidorov; Anderson Singulani - Web page: https://patentgrep.com/patent/US12596226B2 ## CPC - G02B 6/12002: {Three-dimensional structures} - G02B 6/12004: {Combinations of two or more optical elements} - G02B 6/124: Geodesic lenses or integrated gratings - G02B 6/34: utilising prism or grating {(G02B6/293 takes precedence)} - G02B 6/4214: {the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device (G02B6/4246 takes precedence)} - G02B 6/132: by deposition of thin films - G02B 2006/12107: {Grating} - H01S 5/0237: by soldering - H01S 5/18388: {Lenses} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - H01S: DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL ## Abstract A monolithically integrated optical assembly comprising a waveguide configured to receive light and a coupling element configured to couple light into the waveguide. The monolithically integrated optical assembly comprises an optical element comprising a pattern of features configured to control a propagation of light incident on the coupling element. ## Claims ### Claim 1 A monolithically integrated optical assembly comprising: a waveguide configured to receive light; a coupling element configured to couple light into the waveguide; and an optical element comprising a pattern of features configured to control a propagation of light incident on the coupling element, wherein the optical element is configured to control an angle at which light is incident on the coupling element and wherein the optical element is configured to control a focus of light incident on the coupling element, wherein the optical element is configured to direct light toward the coupling element at an angle of incidence of 10° or less, wherein the optical element is disposed over the coupling element so as to overlap only a portion of the coupling element. ### Claim 2 (depends on 1) The monolithically integrated optical assembly of claim 1, wherein the optical element is configured to control an angle at which light reflects from the optical element. ### Claim 3 (depends on 1) The monolithically integrated optical assembly of claim 1, further comprising a cladding structure configured to envelop the coupling element and the waveguide, wherein the optical element is located on the cladding structure or in the cladding structure. ### Claim 4 (depends on 1) The monolithically integrated optical assembly of claim 1, wherein the pattern of features comprises an array of geometric features. ### Claim 5 (depends on 4) The monolithically integrated optical assembly of claim 4, wherein the array of geometric features is polarization insensitive. ### Claim 6 (depends on 1) The monolithically integrated optical assembly of claim 1, wherein the optical element comprises a metamaterial. ### Claim 7 (depends on 1) The monolithically integrated optical assembly of claim 1, wherein the optical element comprises a metasurface. ### Claim 8 (depends on 1) An optical system comprising: the monolithically integrated optical assembly of claim 1; and, a photonic integrated circuit configured to receive light from the waveguide. ### Claim 9 (depends on 1) An optical system comprising: the monolithically integrated optical assembly of claim 1; and, a light source configured to provide light to the monolithically integrated optical assembly. ### Claim 10 (depends on 9) The optical system of claim 9, wherein the optical element is configured to receive light directly from the light source and to reflect at least some light away from the light source. ### Claim 11 (depends on 1) An electronic device comprising the monolithically integrated optical assembly of claim 1. ### Claim 12 A method of manufacturing a monolithically integrated optical assembly comprising: forming a first layer of material; patterning the first layer of material to form a waveguide and a coupling element configured to couple light into the waveguide; forming a second layer of material; and, patterning the second layer of material to form an optical element comprising a pattern of features configured to control a propagation of light incident on the coupling element, wherein the optical element is configured to control an angle at which light is incident on the coupling element and wherein the optical element is configured to control a focus of light incident on the coupling element, wherein the optical element is configured to direct light toward the coupling element at an angle of incidence of 10° or less, wherein the optical element is disposed over the coupling element so as to overlap only a portion of the coupling element. ### Claim 13 (depends on 12) The method of claim 12, wherein forming the second layer of material comprises depositing the second layer of material. ### Claim 14 (depends on 12) The method of claim 12, wherein patterning the second layer of material comprises using imprint lithography or photolithography to form the pattern of features. ### Claim 15 (depends on 12) The method of claim 12, comprising overcoating the optical element. ### Claim 16 (depends on 1) A method of manufacturing an optical system comprising arranging a photonic integrated circuit to receive light from the waveguide of the monolithically integrated optical assembly of claim 1. ### Claim 17 (depends on 1) A method of manufacturing an optical system comprising attaching a light source to the monolithically integrated optical assembly of claim 1. ### Claim 18 (depends on 1) The monolithically integrated optical assembly of claim 1, wherein the angle of incidence is 5° or more. ### Claim 19 (depends on 3) The monolithically integrated optical assembly of claim 3, wherein the optical element is disposed in the cladding structure and directly contacting the coupling element. ### Claim 20 (depends on 4) The monolithically integrated optical assembly of claim 4, wherein the array of geometric features comprises a nano-columnar structure.