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

doi:10.1143/JJAP.48.034001

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

Department of Electronics and Electrical Engineering

Research output: Contribution to journal › Article

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 language	English
Pages (from-to)	34001
Number of pages	1
Journal	Japanese Journal of Applied Physics
Volume	48
Issue number	3
DOIs	https://doi.org/10.1143/JJAP.48.034001
Publication status	Published - 2009 Mar

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ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

Cite this

Hirosawa, K., Momose, Y., Ushio, H., Fujiwara, Y., & Kannari, F. (2009). Purification of squeezed vacuum pulse generated from a Sagnac loop fiber using linear optics and conditional homodyne detection. Japanese Journal of Applied Physics, 48(3), 34001. https://doi.org/10.1143/JJAP.48.034001

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Access to Document

10.1143/JJAP.48.034001