Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2017041174) SYSTEM AND METHOD FOR PHASE-READOUT AND ACTIVE STABILIZATION OF OPTICAL INTERFEROMETERS
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2017/041174 International Application No.: PCT/CA2016/051060
Publication Date: 16.03.2017 International Filing Date: 08.09.2016
IPC:
G01B 9/02 (2006.01) ,G01H 9/00 (2006.01) ,G01K 11/32 (2006.01) ,A61B 5/00 (2006.01)
G PHYSICS
01
MEASURING; TESTING
B
MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
9
Instruments as specified in the subgroups and characterised by the use of optical measuring means
02
Interferometers
G PHYSICS
01
MEASURING; TESTING
H
MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
9
Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
G PHYSICS
01
MEASURING; TESTING
K
MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
11
Measuring temperature based on physical or chemical changes not covered by group G01K3/, G01K5/, G01K7/, or G01K9/202
32
using changes in transmission, scattering or fluorescence in optical fibres
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
5
Measuring for diagnostic purposes; Identification of persons
Applicants:
INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE [CA/CA]; 490 rue de la Couronne Québec, Québec G1K 9A9, CA
Inventors:
ROZTOCKI, Piotr; CA
REIMER, Christian; CA
KUES, Michael; CA
HELSTEN, Robin; CA
JESTIN, Yoann; CA
MORANDOTTI, Roberto; CA
Agent:
GOUDREAU GAGE DUBUC; 2000 McGill College Suite 2200 Montréal, Québec H3A 3H3, CA
Priority Data:
62/215,43708.09.2015US
Title (EN) SYSTEM AND METHOD FOR PHASE-READOUT AND ACTIVE STABILIZATION OF OPTICAL INTERFEROMETERS
(FR) SYSTÈME ET PROCÉDÉ POUR LECTURE DE PHASE ET STABILISATION ACTIVE D'INTERFÉROMÈTRES OPTIQUES
Abstract:
(EN) A system and method for phase-readout/control and active stabilization on arbitrary interferometric phase in the optical interferometer platform is disclosed. The method makes use of a bi-colored polarization-multiplexed reference laser scheme. The disclosed scheme is based on two phase-locked reference signals with different frequencies that together remove the phase ambiguity. The two signals are polarization-multiplexed (either in free-space or optical fiber implementations) to enable easy separation and combining of these two signals through the use of polarization beam-splitters. The disclosed scheme provides a one-to-one map between phase and feedback signal levels, and enables phase- readout and stabilization even when one of the feedback-signals is at a maximum/minimum.
(FR) L'invention concerne un système et un procédé pour une lecture/commande de phase et une stabilisation active sur une phase interférométrique arbitraire dans la plateforme d'un interféromètre optique. Ledit procédé fait usage d'un schéma laser de référence à multiplexage en polarisation à deux couleurs. Le schéma selon l'invention se fonde sur deux signaux de référence à verrouillage de phase ayant différentes fréquences qui, ensemble, éliminent l'ambiguïté de phase. Les deux signaux sont multiplexés en polarisation (soit dans un espace libre, soit dans des implémentations à fibres optiques) afin de permettre une séparation facile et de combiner ces deux signaux au travers de l'utilisation de diviseurs de faisceau de polarisation. Le schéma de l'invention permet d'obtenir une carte univoque entre une phase et des niveaux de signal de rétroaction, et permet une stabilisation et une lecture de phase même lorsque l'un des signaux de rétroaction est à un maximum/minimum.
front page image
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, 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, KN, KP, KR, 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
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 Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
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 (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)