SG11201806209YA - Optical gyroscope, electro-optic system, and methods of forming the same - Google Patents

Abstract

FIGA 314 , I 1 ccw - L320a 32015 1 ccw 306a 306b 328 318a 326 318b 308 302 CCW cw' SOA: Semiconductor Optical Amplifier PM: Phase Modulator OS: Optical Switch TDM: Time Delay Module Di Detector 306 300 W O 20 17 / 13888 4 Al I I Ring resonator C,Aical switch M Optical combiner Optical coupler LZjWaveguide W Time delay module Optical amplifier M Detector Phase modulator 324 c) :: . r ; 22- /316 SOA bl 1 E .> OS ‘, JA (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 17 August 2017 (17.08.2017) WIPO I PCT (10) International Publication Number WO 2017/138884 Al 111111111111110111011111111111010111110111111110111HH11101111111111111110111111 (51) International Patent Classification: GO2B 6/12 (2006.01) GO1C 19/64 (2006.01) (21) International Application Number: PCT/SG2017/050034 (22) International Filing Date: 24 January 2017 (24.01.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 10201601054U 12 February 2016 (12.02.2016) SG (71) Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH [SG/SG]; 1 Fusionopolis Way, #20-10 Connexis, Singapore 138632 (SG). (72) Inventors: WU, Guoqiang; c/o Industry Development, In- stitute of Microelectronics, 2 Fusionopolis Way, #08-02 Innovis Tower, Singapore 138634 (SG). TAO, Jifang; c/o Industry Development, Institute of Microelectronics, 2 Fu- sionopolis Way, #08-02 Innovis Tower, Singapore 138634 (SG). GU, Alex Yuandong; c/o Industry Development, In- stitute of Microelectronics, 2 Fusionopolis Way, #08-02 hmovis Tower, Singapore 138634 (SG). SONG, Junfeng; c/o Industry Development, Institute of Microelectronics, 2 Fusionopolis Way, #08-02 Innovis Tower, Singapore 138634 (SG). (74) Agent: VIERING, JENTSCHURA & PARTNER LLP; P.O. Box 1088, Rochor Post Office, Rochor Road, Singa- pore 911833 (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, 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. [Continued on next page] (54) Title: OPTICAL GYROSCOPE, ELECTRO-OPTIC SYSTEM, AND METHODS OF FORMING THE SAME (57) : Various embodiments may provide an optical gyroscope. The optical gyroscope may include a ring resonator, an input source con- figured to generate or provide a first light beam and a second light beam to the ring resonator, and a switching pathway having an input end and an output end coupled to the ring resonator, and may include a plurality of switches. The optical gyroscope may include a control circuit con- figured to control the plurality of switches to allow the first light beam to propagate from the input end to the output end along the switching path- way during a first time interval, and allow the second light beam to propagate from the input end to the output end along the switching path- way during a second time interval. The optical gyroscope may addition- ally include a detector loop configured to receive the first light beam and the second light beam from the ring resonator. WO 2017/138884 Al MIDEDIMOMOIDEIR0101301110MHHEIMMEHOIS (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))