Generation of squeezed pulses with a Sagnac loop fiber interferometer using a non-soliton femtosecond laser pulse at 800 nm

Y. Fujiwara, H. Nakagome, Kenichi Hirosawa, F. Kannari

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We experimentally demonstrate generation of a squeezed vacuum at 800 nm with a Sagnac loop fiber interferometer. When negative dispersion is properly added to an input laser pulse to compensate for the fiber dispersion, the level of squeezing is improved. A squeezed vacuum of 0.45dB is obtained at a dispersion of -0.0157 ps2for the 1.5 m-long fiber loop. Since the squeezed vacuum is degraded by guided acoustic-wave Brillouin scattering (GAWBS), the noise level of the squeezing is improved by -0.3dB at a liquid nitrogen temperature. We also demonstrate generation of photon number squeezing at -1.3 dB.

Original languageEnglish
Pages (from-to)11197-11204
Number of pages8
JournalOptics Express
Volume17
Issue number13
DOIs
Publication statusPublished - 2009 Jun 22

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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