背景光光伏效应对屏蔽-光伏空间孤子的影响

Screening-photovoltaic solitons affected by the photovoltaic effect of a background beam

在光伏晶体两端外加一恒定的直流偏压 ,背景光的光伏效应对形成屏蔽 光伏孤子的空间电荷场没有影响 ,但对晶体中的电流有影响 .如果外电源的电动势是恒定的 ,则背景光的光伏效应与外电路的电阻协同起作用 ,可以通过晶体两端的电压降影响晶体中的空间电荷场 ,进而影响空间孤子的宽度 .在一定的条件下甚至可以实现亮、暗孤子的转换 .

The photovoltaic effect of a background beam do not affect the spatial-charge field in a photovoltaic crystal with a constant external applied field, but has an effect on the current density in the crystal. If the crystal is connected with an external circuit which includes a resistor and a constant voltage source, the photovoltaic effect of the background beam will affect the full width at half maximum of the solitons, even switch the bright solitons, to the dark solitons, or vice versa.