Generation of entanglement between frequency bands by nonlinear fiber propagation and spectral pulse shaping.
A novel fiber-based scheme for generating quadrature entanglement between a specific pair of frequency bands is proposed. The scheme is based on use of a nonlinear fiber, a spectral pulse shaper, and an adaptive feedback loop. It is numerically predicted that at least -5 dB of the quadrature entanglement will be created by preparation of an appropriate initial phase spectrum. Optimal control of the four-wave mixing terms of the Kerr Hamiltonian is crucial for improvement of the entanglement.
Fujishima
Daisuke
D
Deportment of Electronics and Electrical Engineering, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohoma 223-8522, Japan.
Kannari
Fumihiko
F
Takeoka
Masahiro
M
Sasaki
Masahide
M