Quantum Theory of Fiber-Optics and Solitons

Dmitriy Krylov

Demin Yao, Chun-Fang Li

A. S. Chirkin

Yu Zhong-Yuan

In this paper, the quantum field equation of optical soliton is obtained in the lossy fiber by means of heat reservoir theory. The squeezed ratio of the quantum soliton is obtained with the linear approximation. We study the impacts of the initial chirp on the quantum soliton in lossy fiber with numerical method. The numerical results show that the positive chirp can slower the destruction on the squeezed soliton while the negative chirp quicken the destruction.

Lai Yinchien

Ray‐Kuang Lee, Yinchieh Lai

The fiber Bragg gratings (FBGs) with Kerr nonlinearity exhibit optical soliton like phenomena known as the Bragg solitons. Due to the high dispersion of FBGs near the band edge, optical solitons in the anomalous dispersion side is produced when the input pulse has suitable pulse-width and peak intensity. The Bragg solitons belong to the class of bi-directional pulse propagation problems. In this paper, general quantum theory for bi-directional pulse propagation problems is developed and applied to the Bragg solitons. The output Bragg soliton pulses are quantum-mechanically squeezed and their squeezing ratios calculated.