(12) International Application Status Report

Received at International Bureau: 14 July 2018 (14.07.2018)

Information valid as of: 29 November 2018 (29.11.2018)

Report generated on: 26 March 2019 (26.03.2019)

(10) Publication number: (43) Publication date: (26) Publication language:
WO 2019/00582303 January 2019 (03.01.2019) English (EN)

(21) Application number: (22) Filing date: (25) Filing language:
PCT/US2018/03954126 June 2018 (26.06.2018) English (EN)

(31) Priority number(s): (32) Priority date(s): (33) Priority status:
62/524,840 (US)26 June 2017 (26.06.2017) Priority document received (in compliance with PCT Rule 17.1)

(51) International Patent Classification:
G02B 5/18 (2006.01); G02B 6/10 (2006.01); G02B 6/12 (2006.01); G02B 6/124 (2006.01); G02B 6/13 (2006.01); G02B 6/136 (2006.01); G02B 6/30 (2006.01)

(71) Applicant(s):
THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK [US/US]; 412 Low Memorial Library 535 W. 116th Street New York, NY 10027 (US) (for all designated states)

(72) Inventor(s):
LIPSON, Michal; 452 Riverside Drive, Apt. 62 New York, NY 10027 (US)
MOHANTY, Asemma; 522 West 112th Street, Apt. 52b New York, NY 10025 (US)
PHARE, Christopher, T.; 511 West 113th Street, #72c New York, NY 10025 (US)
ZADKA, Moshe; 3260 Henry Hudson Parkway Bronx, NY 10463 (US)
BOBERTS, Samantha, P.; 2232 Slaterville Road Ithica, NY 14850 (US)
CHANG, You-chia; 251 West 109th Street. Apt. 3b New York, NY 10025 (US)

(74) Agent(s):
RABINOWITZ, Aaron, B.; Baker & Hostetler LLP 2929 Arch Street Cira Centre, 12th Floor Philadelphia, PA 19104-2891 (US)

(54) Title (EN): MILLIMETER SCALE LONG GRATING COUPLER
(54) Title (FR): COUPLEUR À RÉSEAU LONG D'ÉCHELLE MILLIMÉTRIQUE

(57) Abstract:
(EN): A millimeter scale weak grating coupler comprising a silicon waveguide having bars of overlay material of length (a) disposed periodically at a period (Λ) adjacent the silicon waveguide whereby a uniform grating output is achieved.
(FR): L'invention concerne un coupleur à réseau faible d'échelle millimétrique comportant un guide d'ondes en silicium ayant des barres de matériau de recouvrement de longueur (a) disposées périodiquement à une période (Λ) adjacente au guide d'ondes en silicium, permettant d'obtenir une sortie de réseau uniforme.

International search report:
Received at International Bureau: 23 September 2018 (23.09.2018) [US]

International Report on Patentability (IPRP) Chapter II of the PCT:
Not available

(81) Designated States:
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
European Patent Office (EPO) : 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
African Intellectual Property Organization (OAPI) : BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG
African Regional Intellectual Property Organization (ARIPO) : BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW
Eurasian Patent Organization (EAPO) : AM, AZ, BY, KG, KZ, RU, TJ, TM