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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 13 — Jun. 22, 2009
  • pp: 11197–11204

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

Y. Fujiwara, H. Nakagome, K. Hirosawa, and F. Kannari  »View Author Affiliations

Optics Express, Vol. 17, Issue 13, pp. 11197-11204 (2009)

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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 ps2 for 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.

© 2009 Optical Society of America

OCIS Codes
(060.7140) Fiber optics and optical communications : Ultrafast processes in fibers
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(270.6570) Quantum optics : Squeezed states
(320.5540) Ultrafast optics : Pulse shaping

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: April 21, 2009
Revised Manuscript: May 22, 2009
Manuscript Accepted: May 25, 2009
Published: June 19, 2009

Y. Fujiwara, H. Nakagome, K. Hirosawa, and F. Kannari, "Generation of squeezed pulses with a Sagnac loop fiber interferometer using a non-soliton femtosecond laser pulse at 800 nm," Opt. Express 17, 11197-11204 (2009)

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