›› 2014, Vol. 23 ›› Issue (8): 84204-084204.doi: 10.1088/1674-1056/23/8/084204

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Large phase shift of spatial soliton in lead glass by cross-phase modulation in pump-signal geometry

寿倩, 刘东文, 张翔, 胡巍, 郭旗   

  1. Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University, Guangzhou 510006, China
  • 收稿日期:2013-08-21 修回日期:2014-01-24 出版日期:2014-08-15 发布日期:2014-08-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11274125).

Large phase shift of spatial soliton in lead glass by cross-phase modulation in pump-signal geometry

Shou Qian (寿倩), Liu Dong-Wen (刘东文), Zhang Xiang (张翔), Hu Wei (胡巍), Guo Qi (郭旗)   

  1. Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University, Guangzhou 510006, China
  • Received:2013-08-21 Revised:2014-01-24 Online:2014-08-15 Published:2014-08-15
  • Contact: Guo Qi E-mail:guoq@scnu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11274125).

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摘要： We investigate the co-propagation of a strong pump beam and a weak signal beam in lead glass, and find that the large phase shift of the strongly nonlocal spatial optical soliton (SNSOS) can be realized via cross-phase modulation. The theoretical study suggests a synchronous propagation of the pump SNSOS and the signal SNSOS under the required initial condition. A π-phase shift of the signal SNSOS is experimentally obtained by changing the power of the pump SNSOS by about 13 mW around the soliton critical power, which agrees qualitatively with our theoretical prediction. The ratio of the phase shift rate of the signal SNSOS to that of the pump SNSOS shows a close match to the reciprocal of the ratio between their wavelengths.

关键词: strongly nonlocal spatial solitons, large phase shift, lead glass

Abstract: We investigate the co-propagation of a strong pump beam and a weak signal beam in lead glass, and find that the large phase shift of the strongly nonlocal spatial optical soliton (SNSOS) can be realized via cross-phase modulation. The theoretical study suggests a synchronous propagation of the pump SNSOS and the signal SNSOS under the required initial condition. A π-phase shift of the signal SNSOS is experimentally obtained by changing the power of the pump SNSOS by about 13 mW around the soliton critical power, which agrees qualitatively with our theoretical prediction. The ratio of the phase shift rate of the signal SNSOS to that of the pump SNSOS shows a close match to the reciprocal of the ratio between their wavelengths.

Key words: strongly nonlocal spatial solitons, large phase shift, lead glass

中图分类号:  (Optical solitons; nonlinear guided waves)

  • 42.65.Tg
11.10.Lm (Nonlinear or nonlocal theories and models) 05.45.Yv (Solitons) 66.70.Hk (Glasses and polymers)