Effects of temperature on the stability of separatescreening bright--dark spatial soliton pair |
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| Authors: | Zhang Guang-Yong and Liu Jin-Song |
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| Affiliation: | State Key Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhan 430074, China;Department of Physics, China University of Geosciences, Wuhan 430074, China |
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| Abstract: | We investigate theoretically the temperature effects on the evolution and stabilityof a separate screening bright--dark soliton pair formed in a serialnon-photovoltaic photorefractive crystal circuit. Our numerical results show that,for a stable bright--dark soliton pair originally formed in a crystal circuit atgiven temperatures, when one crystal temperature changes, the soliton supported bythe other crystal will evolve into another stable soliton if the temperature changeis quite small, whereas it will become unstable and experience larger cycles ofcompression or break up into beam filaments if the temperature difference is bigenough. The dark soliton is more sensitive to the temperature change than the brightone. |
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| Keywords: | nonlinear optics spatial optical solitons photorefractive effects soliton pair |
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