We show that an intense linearly polarized pulse propagating in a nonbirefringent fiber squeezes the perpendicularly polarized vacuum fluctuations through cross-phase modulation. Unlike the generation of squeezed vacuum through self-phase modulation, the mechanism discussed here does not require the use of a nonlinear Sagnac interferometer to separate the pump from the squeezed vacuum.
© 1996 Optical Society of America
Original Manuscript: July 27, 1995
Published: January 15, 1996
L. Boivin and H. A. Haus, "χ(3) squeezed vacuum generation without a Sagnac interferometer," Opt. Lett. 21, 146-148 (1996)