Four modes of optical parametric operation for squeezed state generation

Ulrik Lund Andersen, B.C. Buchler, P.K. Lam, J.W. Wu, J.R. Gao, H.A. Bachor

Research output: Contribution to journalJournal articleResearchpeer-review


We report a versatile instrument, based on a monolithic optical parametric amplifier, which reliably generates four different types of squeezed light. We obtained vacuum squeezing, low power amplitude squeezing, phase squeezing and bright amplitude squeezing. We show a complete analysis of this light, including a full quantum state tomography. In addition we demonstrate the direct detection of the squeezed state statistics without the aid of a spectrum analyser. This technique makes the nonclassical properties directly visible and allows complete measurement of the statistical moments of the squeezed quadrature.
Original languageEnglish
JournalEuropean physical journal D
Issue number2
Pages (from-to)181-191
Publication statusPublished - 2003


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