Abstract
In this Letter, a linear scheme to generate polarization entanglement at 1.5 μm based on commercial polarization maintained dispersion shifted fiber (PM-DSF) is proposed. The birefringent walk-off effect of the pulsed pump light in the PM-DSF provides an effective way to suppress the vector scattering processes of spontaneous four-wave mixing. A 90 deg offset of fiber polarization axes is introduced at the midpoint of the fiber to realize the quantum superposition of the two correlated photon states generated by the two scalar processes on different fiber polarization axes, leading to polarization entanglement generation. Experiments of the indistinguishable property on single-side and two-photon interference in two nonorthogonal polarization bases are demonstrated. A two-photon interference fringe visibility of is achieved without subtracting the background counts, demonstrating its great potential in developing highly a efficient and stable fiber based polarization-entangled quantum light source at the optical communication band.
©2012 Optical Society of America
Full Article | PDF ArticleMore Like This
Ning Lv, Wei Zhang, Yuan Guo, Qiang Zhou, Yidong Huang, and Jiangde Peng
Opt. Lett. 38(15) 2873-2876 (2013)
Qiang Zhou, Wei Zhang, Jierong Cheng, Yidong Huang, and Jiangde Peng
Opt. Lett. 34(18) 2706-2708 (2009)
Qiang Zhou, Wei Zhang, Chenzhi Yuan, Yidong Huang, and Jiangde Peng
Opt. Lett. 39(7) 2109-2112 (2014)