Patent SG-11201903906W-A (SG)
Title: Low cost and compact optical phased array with electro-optic beam steering
Inventor: FUJITA JUNICHIRO
IPC: G01S7/481
Filed: 2017-11-03
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Al 11111111 0 1111111111111111 011001 0 0111111111111001H1111111011111111111110111111 Organization International Bureau (10) International Publication Number (43) International Publication Date ......0\"\" WO 2018/085711 A2 11 May 2018 (11.05.2018) WIPO I PCT (51) International Patent Classification: (74) Agent: GALLIANI, William S. et al.; Cooley LLP, Attn.: GO1S 7/481 (2006.01) GO1S 7/486 (2006.01) IP Docketing Department, 1299 Pennsylvania Avenue NW, (21) International Application Number: Suite 700, Washington, District of Columbia 20004 (US). PCT/US2017/060029 (81) Designated States (unless otherwise indicated, for every (22) International Filing Date: kind of national protection available): AE, AG, AL, AM, 03 November 2017 (03.11.2017) 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, (25) Filing Language: English DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, (26) Publication Language: English 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, (30) Priority Data: MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, 15/342,958 03 November 2016 (03.11.2016) US 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, (71) Applicant: QUANERGY SYSTEMS, INC. [US/US]; 482 TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. Mercury Drive, Sunnyvale, California 94085 (US). (84) Designated States (unless otherwise indicated, for every (72) Inventors: FUJITA, Junichiro; 482 Mercury Drive, Sun- kind of regional protection available): ARIPO (BW, GH, nyvale, California 94085 (US). ELDADA, Louay; 482 GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, Mercury Drive, Sunnyvale, California 94085 (US). UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, = (54) Title: LOW COST AND COMPACT OPTICAL PHASED ARRAY WITH ELECTRO-OPTIC BEAM STEERING 18 19 r Phase , , ,,,,en Phase tuning \"-it Tuning Control Circuit 13' i x N splitter 11 12 ei Figure 1 Il r ..... (57) : An apparatus has a waveguide input to receive light. An optical splitter is connected to the waveguide input to form split in signals. An array of waveguides receives the split signals. A phase tuning region includes electrodes within a cladding surrounding the GO array of waveguides. The phase tuning region produces an electro-optic effect under the control of a phase tuning control circuit applying 0 --.... an electric field to the electrodes to render phase difference split signals within the array of waveguides. Output array waveguides emit Ot the phase difference split signals as steered beams based on relative phase differences among the phase difference split signals. 1-1 0 ei O [Continued on next page] WO 2018/085711 A2IMIOHOIIl010llMEIH00 IIIIIHEMNIU11MIE 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). Declarations under Rule 4.17: — as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(H)) Published: — without international search report and to be republished upon receipt of that report (Rule 48.2(g))