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Updated: Nov 8, 2025

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
Published on: March 20, 2017
Optical information transmission through complex scattering media with optical-channel-based intensity streaming
Haowen Ruan1, Jian Xu2, Changhuei Yang3
1Department of Electrical Engineering, California Institute of Technology, Pasadena, CA, USA. hruan@caltech.edu.
This study introduces optical-channel-based intensity streaming (OCIS), a novel method for controlling light through scattering media. OCIS bypasses traditional wavefront shaping, offering a new approach for applications like secure optical communication.
Area of Science:
- Optics and Photonics
- Light Propagation in Scattering Media
Background:
- Optical wavefront shaping has been the dominant method for controlling light through scattering media for ten years.
- This dominance relies on the assumption that manipulating optical interference is essential for light control in such media.
Purpose of the Study:
- To challenge the necessity of optical interference manipulation for light control through scattering media.
- To introduce and demonstrate an alternative approach: optical-channel-based intensity streaming (OCIS).
Main Methods:
- OCIS controls light and transmits information through scattering media using linear intensity operations, rather than active interference tuning.
- Experiments were designed to parallel wavefront shaping implementations, including iterative wavefront optimization and digital optical phase conjugation.
Main Results:
- Demonstrated OCIS's capability to create focus patterns through scattering media within sub-millisecond timescales.
- Showcased the transmission of images through scattering media using OCIS.
- Validated OCIS for direct imaging through scattering media.
Conclusions:
- OCIS presents a viable alternative to wavefront shaping for light control through scattering media.
- OCIS enables new applications, such as secure optical communication mediated by scattering media.
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