Squeezed-light generation with an incoherent pump

Prem Kumar*, Orhan Ayẗr, Jianming Huang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

72 Scopus citations


We report generating squeezed light via parametric down conversion of a Q-switched and frequency-doubled multi-longitudinal-mode Nd-doped yttrium-aluminum-garnet laser. A local oscillator with appropriate temporal incoherence is needed to homodyne detect the generated squeezed light. As a first approximation, we derive the local-oscillator beam from the same multimode laser whose harmonic is used to pump the parametric down-conversion process. 0.08±0.2 dB of squeezing is routinely observed.

Original languageEnglish (US)
Pages (from-to)1015-1018
Number of pages4
JournalPhysical review letters
Issue number9
StatePublished - 1990

ASJC Scopus subject areas

  • General Physics and Astronomy


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