Title :
Nonlinear recovery of noise-hidden signals via modulation instability
Author :
Dylov, Dmitry V. ; Fleischer, Jason W.
Author_Institution :
Dept. of Electr. Eng., Princeton Univ., Princeton, NJ
Abstract :
We demonstrate a spatial, all-optical version of steganography in a nonlinear medium. After hiding a coherent image in spatially-incoherent noise, we recover the signal by seeding modulation instability in a self-focusing photorefractive crystal.
Keywords :
cryptography; light coherence; nonlinear optics; photorefractive materials; self-focusing; all-optical version; coherent image; modulation instability; noise-hidden signals; nonlinear recovery; self-focusing photorefractive crystal; steganography; Crystallization; Fiber nonlinear optics; Nonlinear optics; Optical coupling; Optical fiber networks; Optical modulation; Optical noise; Optical receivers; Photorefractive materials; Steganography; (100.2980) Image enhancement; (190.3100) Instabilities and chaos;
Conference_Titel :
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-859-9
