Method for energy and information transfer and device
A method using complementary laser wavelengths and polarization filters in a receiver module with solar cells addresses the limitations of complex modulation in laser communication systems, enabling simultaneous energy and information transfer without batteries.
DE102012018616B4Active Publication Date: 2026-06-11AIRBUS DEFENCE & SPACE GMBH
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- AIRBUS DEFENCE & SPACE GMBH
- Filing Date
- 2012-09-14
- Publication Date
- 2026-06-11
AI Technical Summary
Technical Problem
Existing laser-based communication systems are limited to information transmission and require complex modulation to reduce interference, lacking the capability for simultaneous energy transmission and are not battery-independent.
Method used
A method using two laser light sources with complementary wavelengths and a receiver module with detectors and solar cells, along with polarization filters, to enable simultaneous energy and information transfer without complex modulation.
Benefits of technology
Enables simple and compact energy and information transmission with reduced interference, eliminating the need for batteries or power supplies.
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Smart Images
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Abstract
Method for energy and information transmission using laser beams with a transmitter module (1) having at least two laser light sources (3, 4) and a receiver module (2) having at least two detectors (6, 7) with polarization filters, wherein the transmitter module (1) transmits the information with the laser radiation emitted by the two laser light sources (3, 4) with different wavelengths (λ1, λ2) in a complementary manner, wherein the correlation of the signals of both wavelengths (λ1, λ2) is used to detect, by means of the at least two detectors (6, 7), whether data is being transmitted, characterized by the fact that the receiver module (2) is equipped with a series of solar cells (5) arranged in an arrangement with the at least two detectors (6, 7) with the polarization filters, wherein the laser light sources (3, 4) each have a radiation angle (α, β) that encloses the solar cells (5) so that the receiver module (2) receives energy from the laser light sources (3, 4).
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