Patent SG-11201909486X-A (SG)
Title: Optical modulator, method for forming the same, and method for controlling the same
Inventor: HU XIAONAN
IPC: G02F1/035
Filed: 2018-06-07
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 10 January 2019 (10.01.2019) WIPO I PCT omit VIII VIII 11o1H No oimIE (10) International Publication Number WO 2019/009801 Al (51) International Patent Classification: G02F 1/01 (2006.01) GO2F 1/035 (2006.01) G02F 1/025 (2006.01) G02B 6/12 (2006.01) (21) International Application Number: PCT/SG2018/050284 (22) International Filing Date: 07 June 2018 (07.06.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 10201705574R 06 July 2017 (06.07.2017) SG (71) Applicant: NANYANG TECHNOLOGICAL UNIVERSITY [SG/SG]; 50 Nanyang Avenue, Singapore 639798 (SG). (72) Inventors: HU, Xiaonan; c/o Nanyang Technological Uni- versity, 50 Nanyang Avenue, Singapore 639798 (SG). LIANG, Guozhen; c/o Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798 (SG). MENG, Bo; c/o Nanyang Technological University, 50 Nanyang Av- enue, Singapore 639798 (SG). WANG, Qijie; c/o Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798 (SG). (74) Agent: MCLAUGHLIN, Michael Gerard; McLaughlin IP Pte. Ltd., 24A Mosque Street, Singapore 059504 (SG). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: with international search report (Art. 21(3)) in black and white; the international application as filed contained color or greyscale and is available for download from PATENTSCOPE (54) Title: OPTICAL MODULATOR, METHOD FOR FORMING THE SAME, AND METHOD FOR CONTROLLING THE SAME Grapheme 212b G 204b 208b ? , ice 212b rS S 206b vim HG. 2B (57) : According to embodiments of the present invention, an optical modulator is provided. The optical modulator includes a substrate, and a waveguiding arrangement on the substrate, the waveguiding arrangement having a waveguide, and at least one graphene layer arranged to interact with light propagating in the waveguiding arrangement, wherein the waveguide is designed such that the light interacting with the at least one graphene layer has a maximum intensity overlapping with the at least one graphene layer. According to further embodiments of the present invention, a method for forming the optical modulator, and a method for controlling the optical modulator are also provided. :)n