Effects of temperature on the stability of separate screening bright-dark spatial soliton pair

• 来源期刊: 中国物理（英文版）
• 关键词: nonlinear optics spatial optical solitons photorefractive effects soliton pair
• 年，卷（期）: 2006,（11）
• 页码范围: 2631-2637
• 页数: 7页
• 语种: 英文

摘要

We investigate theoretically the temperature effects on the evolution and stability of a separate screening brightdark soliton pair formed in a serial non-photovoltaic photorefractive crystal circuit. Our numerical results show that, for a stable bright-dark soliton pair originally formed in a crystal circuit at given temperatures, when one crystal temperature changes, the soliton supported by the other crystal will evolve into another stable soliton if the temperature change is quite small, whereas it will become unstable and experience larger cycles of compression or break up into beam filaments if the temperature difference is big enough. The dark soliton is more sensitive to the temperature change than the bright one.