Squeezed-light generation with a mode-locked Q-switched laser and detection by using a matched local oscillator

Orhan Aytür, Prem Kumar

Research output: Contribution to journalArticle

35 Scopus citations

Abstract

We report pulsed squeezed-light generation by means of an optical parametric downconverter that is pumped by the second harmonic of a mode-locked Q-switched laser. Using the fundamental beam of the laser as a local oscillator, we observe 2-dB squeezing for a parametric gain of 2.0. This local oscillator, however, is nonoptimal because of its spatiotemporal mode mismatch with the squeezed mode generated by the downconverter. We describe an experiment in which a matched local oscillator is generated with the use of an optical parametric amplifier that is pumped by the same laser as is the downconverter. In this case, 2-dB squeezing is observed for a parametric gain of 1.5. The present experimental setup is limited by the uncontrollable phase fluctuations that prohibit us from making squeezing measurements at higher parametric gains.

Original languageEnglish (US)
Pages (from-to)529-531
Number of pages3
JournalOptics Letters
Volume17
Issue number7
DOIs
StatePublished - Jan 1 1992

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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