Analog noise protected optical encryption with two-dimensional key space

Ben Wu, Matthew P. Chang, Bhavin J. Shastri, Zhenxing Wang, Paul R. Prucnal

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


An optical encryption method based on analog noise is proposed and experimentally demonstrated. The transmitted data is encrypted with wideband analog noise. Without decrypting the data instantly at the receiver, the data is damaged by the noise and cannot be recovered by postprocessing techniques. A matching condition in both phase and amplitude of the noise needs to be satisfied between the transmitter and the receiver to cancel the noise. The precise requirement of the phase and amplitude matching condition provides a large two-dimensional key space, which can be deployed in the encryption and decryption process at the transmitter and receiver.

Original languageEnglish (US)
Pages (from-to)14568-14574
Number of pages7
JournalOptics Express
Issue number12
StatePublished - Jun 16 2014

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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