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 journalArticle

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
Pages (from-to)34001
Number of pages1
JournalJapanese Journal of Applied Physics
Volume48
Issue number3
DOIs
Publication statusPublished - 2009 Mar

Fingerprint

Homodyne detection
purification
quadratures
Purification
Acoustic wave scattering
Optics
Vacuum
optics
Brillouin scattering
Optical losses
vacuum
fibers
Guided electromagnetic wave propagation
Fibers
pulses
Interferometers
beam splitters
Wavelength
interferometers
acoustics

ASJC Scopus subject areas

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

Cite this

Purification of squeezed vacuum pulse generated from a Sagnac loop fiber using linear optics and conditional homodyne detection. / Hirosawa, Kenichi; Momose, Yoshinori; Ushio, Hidetake; Fujiwara, Yuji; Kannari, Fumihiko.

In: Japanese Journal of Applied Physics, Vol. 48, No. 3, 03.2009, p. 34001.

Research output: Contribution to journalArticle

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