WDM optical steganography based on amplified spontaneous emission noise

Ben Wu, Alexander N. Tait, Matthew P. Chang, Paul R. Prucnal

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


Wepropose and experimentally demonstrate a wavelength-division multiplexed (WDM) optical stealth transmission system carried by amplified spontaneous emission (ASE) noise. The stealth signal is hidden in both time and frequency domains by using ASE noise as the signal carrier. Each WDM channel uses part of the ASE spectrum, which provides more flexibility to apply stealth transmission in a public network and adds another layer of security to the stealth channel. Multi-channel transmission also increases the overall channel capacity, which is the major limitation of the single stealth channel transmission based on ASE noise. The relations between spectral bandwidth and coherence length of ASE carrier have been theoretically analyzed and experimentally investigated.

Original languageEnglish (US)
Pages (from-to)5925-5928
Number of pages4
JournalOptics Letters
Issue number20
StatePublished - Oct 15 2014

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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