【摘 要】
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We investigate modulation instability (MI) in the presence of a monochromatic spectrum and on the background of a broadband amplified spontaneous emission spect
【机 构】
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Department of Optic Information Science and Technology, College of Optoelectronic Science and Engine
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We investigate modulation instability (MI) in the presence of a monochromatic spectrum and on the background of a broadband amplified spontaneous emission spectrum induced by an erbium-doped fiber amplifier,respectively.For the former case,the MI threshold is ～110mW,which agrees well with the theoretical value.However,for the latter case,the threshold is as high as ～170mW,which indicates that the MI threshold depends on the shape of the input spectrum and that the broadband spectrum has a higher threshold than the monochromatic one.
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