Abstract
We propose to apply optical steganography to public differential phase-shift keying (DPSK) transmission by transmitting a stealth amplitude-modulated signal through a DPSK link. The secretly transmitted signal is temporally stretched with chirped fiber-Bragg gratings (CFBGs), and therefore, can be hidden under public DPSK signals. The stealth signal is successfully recovered and detected asynchronously, without clock synchronization with the transmitter.
| Original language | English (US) |
|---|---|
| Article number | 5617216 |
| Pages (from-to) | 48-50 |
| Number of pages | 3 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 23 |
| Issue number | 1 |
| DOIs | |
| State | Published - 2011 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering
Keywords
- Asynchronous detection
- differential phase-shift keying (DPSK)
- optical steganography
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