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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
Published on: March 20, 2017
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Secure information transport by transverse localization of light
Marco Leonetti1, Salman Karbasi2, Arash Mafi3
1Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena, 291 00161 Roma (RM) Italia.
Scientific Reports
|July 21, 2016
Summary
Researchers developed a quantum key distribution scheme using reconfigurable localized optical patterns. This method encodes significant information in fiber communication, even with few photon counts, by leveraging position and momentum complementarity.
Area of Science:
- Quantum optics
- Quantum information science
Background:
- Single-photon interference creates complex optical fringe patterns.
- Information in these patterns is often inaccessible due to the need for numerous detections.
- This limitation primarily applies to delocalized patterns.
Purpose of the Study:
- To demonstrate a method for encoding substantial information using localized optical patterns.
- To develop a quantum key distribution (QKD) scheme for fiber communication with high information capacity.
Main Methods:
- Utilizing reconfigurable localized optical patterns.
- Encoding information in disorder-induced high transmission channels.
- Leveraging the complementarity of position and momentum for information encoding.
Main Results:
- Achieved encoding of up to 6 bits of information.
- Demonstrated high information capacity even with a small number of photon counts.
- Successfully implemented a QKD scheme for fiber communication.
Conclusions:
- Reconfigurable localized optical patterns overcome the information accessibility limitations of delocalized patterns.
- The developed QKD scheme offers high information capacity for secure fiber communication.
- Position and momentum complementarity are key to achieving high information encoding in this system.
