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1. WO2018119264 - COHERENT RECEIVER ARRAY

Publication Number WO/2018/119264
Publication Date 28.06.2018
International Application No. PCT/US2017/067948
International Filing Date 21.12.2017
Chapter 2 Demand Filed 05.10.2018
IPC
G01B 9/02 2006.1
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
9Instruments as specified in the subgroups and characterised by the use of optical measuring means
02Interferometers
G01S 17/89 2006.1
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
88Lidar systems, specially adapted for specific applications
89for mapping or imaging
CPC
G01B 2290/45
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
2290Aspects of interferometers not specifically covered by any group under G01B9/02
45Multiple detectors for detecting interferometer signals
G01B 9/02004
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
9Instruments as specified in the subgroups and characterised by the use of optical measuring means
02Interferometers ; for determining dimensional properties of, or relations between, measurement objects
02001characterised by manipulating or generating specific radiation properties
02002Frequency variation
02004by using a continuous frequency sweep or scan
G01B 9/02027
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
9Instruments as specified in the subgroups and characterised by the use of optical measuring means
02Interferometers ; for determining dimensional properties of, or relations between, measurement objects
02015characterised by a particular beam path configuration
02027Two or more interferometric channels or interferometers
G01B 9/02051
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
9Instruments as specified in the subgroups and characterised by the use of optical measuring means
02Interferometers ; for determining dimensional properties of, or relations between, measurement objects
02049characterised by particular mechanical design details
02051Integrated design, e.g. on-chip or monolithic
G01B 9/02069
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
9Instruments as specified in the subgroups and characterised by the use of optical measuring means
02Interferometers ; for determining dimensional properties of, or relations between, measurement objects
02055characterised by error reduction techniques
02062Active error reduction, i.e. varying with time
02067by electronic control systems, i.e. using feedback acting on optics or light
02069Synchronization of light source or manipulator and detector
G01B 9/02081
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
9Instruments as specified in the subgroups and characterised by the use of optical measuring means
02Interferometers ; for determining dimensional properties of, or relations between, measurement objects
02055characterised by error reduction techniques
02075of particular errors
02078Caused by ambiguity
02079Quadrature detection, i.e. detecting relatively phase-shifted signals
02081simultaneous quadrature detection, e.g. by spatial phase shifting
Applicants
  • ACACIA COMMUNICATIONS, INC. [US]/[US]
Inventors
  • DOERR, Christopher
Agents
  • FRANKLIN, Thomas, A.
Priority Data
62/437,55721.12.2016US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) COHERENT RECEIVER ARRAY
(FR) RÉSEAU DE RÉCEPTEURS COHÉRENTS
Abstract
(EN) Optical coherent receiver arrays are described. The optical coherent receiver arrays include an integrated array of photodetectors separated by integrated mirrors which may cause interference of received free space optical and local oscillator signals. The mirrors may serve as splitters, helping to align the received signal and local oscillator to cause interference. The photodetectors of the optical coherent receiver array may be electrically coupled in various manners to read out the signals. The optical coherent receiver array may be implemented in an optical coherence tomography (OCT) imaging system in some embodiments.
(FR) Cette invention concerne des réseaux de récepteurs optiques cohérents. Les réseaux de récepteurs optiques cohérents comprennent un réseau intégré de photodétecteurs séparés par des miroirs intégrés qui peuvent provoquer une interférence entre signaux optiques en espace libre signaux d'oscillateur local reçus. Les miroirs peuvent servir de séparateurs, aidant à aligner le signal reçu et l'oscillateur local pour provoquer une interférence. Les photodétecteurs du réseau de récepteurs optiques cohérents peuvent être couplés électriquement de diverses manières pour lire les signaux. Le réseau de récepteurs optiques cohérents peut être mis en œuvre dans un système d'imagerie par tomographie en cohérence optique (OCT) selon certains modes de réalisation.
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