Nonclassical light in complex optical systems

A. Karpati, P. Adam, J. Janszky, M. Bertolotti, C. Sibilia

Research output: Contribution to journalArticle

6 Citations (Scopus)


A general method is developed for analysing the evolution of nonclassical light in complex two-mode optical systems where linear and nonlinear processes with quadratic Hamiltonians can take place simultaneously or successively. Analytic expressions are derived for the output Wigner function and the output photon number distribution for a general coherent-state superposition input that can approximate any quantum state of light with a high degree of accuracy. As an example, the evolution of amplitude squeezed light is analysed in a nonlinear coupler with degenerate and nondegenerate parametric amplification. It is shown that all-optical switching can be realized in this system.

Original languageEnglish
Pages (from-to)133-139
Number of pages7
JournalJournal of Optics B: Quantum and Semiclassical Optics
Issue number2
Publication statusPublished - Apr 1 2000


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy (miscellaneous)

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