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(11)

EP 4 331 066 A1

(12)

(43) Date of publication: 06.03.2024 Bulletin 2024/10 (21) Application number: 22727527.8 (22) Date of filing: 23.04.2022

(51) International Patent Classification (IPC):  H01S 5/183(2006.01) H01S 5/00(2006.01) H01L 33/46(2010.01) H01S 3/108(2006.01) H01S 5/026(2006.01) G02F 1/39(2006.01) H01S 5/14(2006.01) (52) Cooperative Patent Classification (CPC): G02F 2203/15; H01S 3/1083; H01S 5/0092; H01S 5/026; H01S 5/141; H01S 5/18361; H01S 5/18366; H01S 5/423; G02F 1/3536; G02F 1/397 (86) International application number: PCT/US2022/026078 (87) International publication number: WO 2022/231991 (03.11.2022 Gazette 2022/44)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 26.04.2021 US 202163179913 P 10.06.2021 US 202117344738 (71) Applicant: META PLATFORMS TECHNOLOGIES, LLC Menlo Park, CA 94025 (US)	(72) Inventors: BONAR, James Ronald Menlo Park, California 94025 (US) SCHELLER, Maik Andre Menlo Park, California 94025 (US) VALENTINE, Gareth John Menlo Park, California 94025 (US) SHI, Zhimin Menlo Park, California 94025 (US) (74) Representative: Murgitroyd & Company  Murgitroyd House 165-169 Scotland Street Glasgow G5 8PL Glasgow G5 8PL (GB)