Method for beam alignment in optical wireless communication systems
AssigneeSignify Holding B.V.
InventorALEKSANDAR SEVO
Life of this patent
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Abstract
An optical wireless communication system (100) comprising: an optical transmitter (200) comprising: a light source (210) configured to emit a beam for optical data communication; a subsystem (220) configured to carry out a beam alignment procedure based on incident light received from a remote optical receiver (300); and the remote optical receiver (300) comprising: a photo detector (310) configured to detect the beam sent by the optical transmitter (200); a half spherical mirror (320) configured to reflect part of the beam received from the optical transmitter (200) to assist the beam alignment procedure carried out by the optical transmitter (200).
Claims10
An optical wireless communication system comprising:
- an optical transmitter comprising:
- a light source configured to emit a beam for optical data communication;
- a subsystem configured to carry out a beam alignment procedure based on incident light received from a remote optical receiver and
- the remote optical receiver comprising:
- a photo detector configured to detect the beam sent by the optical transmitter;
- a half spherical mirror configured to reflect part of the beam received from the optical transmitter to assist the beam alignment procedure carried out by the optical transmitter;
- wherein the half spherical mirror is semi-transparent and semi-reflective, and the photo detector is placed behind the half spherical mirror with regard to an incident direction of the beam and at the center of the half-sphere.
A method of an optical wireless communication system comprising the steps of:
- emitting a beam by an optical transmitter for optical data communication;
- reflecting by a half spherical mirror comprised in a remote optical receiver, part of the beam to assist a beam alignment procedure carried out by the optical transmitter;
- carrying out the beam alignment procedure by the optical transmitter based on incident light received from the remote optical receiver;
- detecting by the remote optical receiver the beam from the optical transmitter
- wherein the half spherical mirror is semi-transparent and semi-reflective, and a photo detector of the remote optical receiver is placed behind the half spherical mirror with regard to an incident direction of the beam and at the center of the half-sphere.
An optical receiver comprising:
- a photo detector configured to detect a beam sent by a remote optical transmitter;
- a half spherical mirror configured to reflect part of the beam received from the optical transmitter to assist a beam alignment procedure carried out by the optical transmitter;
- wherein the half spherical mirror is semi-transparent and semi-reflective, and the photo detector is placed behind the half spherical mirror with regard to an incident direction of the beam and at the center of the half-sphere.
Dependencies are inferred from the claim text.