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

doi:10.1088/1674-1056/23/8/084204

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.

Keywords: strongly nonlocal spatial solitons large phase shift lead glass

Received: 21 August 2013
Revised: 24 January 2014
Accepted manuscript online:

PACS:	42.65.Tg	(Optical solitons; nonlinear guided waves)
	11.10.Lm	(Nonlinear or nonlocal theories and models)
	05.45.Yv	(Solitons)
	66.70.Hk	(Glasses and polymers)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11274125).

Corresponding Authors: Guo Qi
E-mail: guoq@scnu.edu.cn

Cite this article:

Shou Qian (寿倩), Liu Dong-Wen (刘东文), Zhang Xiang (张翔), Hu Wei (胡巍), Guo Qi (郭旗) Large phase shift of spatial soliton in lead glass by cross-phase modulation in pump-signal geometry 2014 Chin. Phys. B 23 084204

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

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