Purification of squeezed vacuum pulse generated from a Sagnac loop fiber using linear optics and conditional homodyne detection

Kenichi Hirosawa, Yoshinori Momose, Hidetake Ushio, Yuji Fujiwara, Fumihiko Kannari

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Purification of quadrature squeezed vacuum pulses at the wavelength of 1.5 μm generated from a Sagnac loop fiber interferometer is experimentally demonstrated using linear optics and conditional homodyne detection. The anti-squeezed quadrature variance degraded by guided acoustic wave Brillouin scattering in the fiber is significantly improved from 12.6 to 4dB after the post selection, while the squeezed quadrature variance of -0.7 dB slightly decreases to -0.3 dB due to the linear optical loss caused by a beam splitter. This result agrees well with the theory.

Original languageEnglish
Number of pages1
JournalJapanese journal of applied physics
Volume48
Issue number3
DOIs
Publication statusPublished - 2009 Mar 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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