Experimental demonstration of an all-optical fiber-based Fredkin gate

Natalie Kostinski, Mable P. Fok, Paul R. Prucnal

Research output: Contribution to journalArticlepeer-review

47 Scopus citations


We propose and report on what we believe to be the first experimental demonstration of an all-optical fiberbased Fredkin gate for reversible digital logic. The simple 3-input /3-output fiber-based nonlinear optical loop mirror architecture requires only minor alignment for full operation. A short nonlinear element, heavily doped GeO2 fiber (HDF), allows for a more compact design than typical nonlinear fiber gates. The HDF is ideal for studying reversibility, functioning as a noise-limited medium, as compared to the semiconductor optical amplifier, while allowing for cross-phase modulation, a nondissipative optical interaction. We suggest applications for secure communications, based on "cool" computing.

Original languageEnglish (US)
Pages (from-to)2766-2768
Number of pages3
JournalOptics Letters
Issue number18
StatePublished - Sep 15 2009

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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