Polarization independent wavelength converter and polarization independent wavelength conversion method
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机译:偏振无关波长转换器和偏振无关波长转换方法
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摘要
A polarization independent wavelength converter includes a polarization maintaining optical fiber which includes a first and a second ends and has a first polarization axis and a second polarization axis, the first and the second polarization axes being orthogonal to each other and propagating light at different velocities, and a group velocity difference cancellation unit that receives a signal light having a certain polarization state and a pump light including a polarization component parallel to the first polarization axis and a polarization component parallel to the second polarization axis and that causes the signal light and a wavelength-converted light generated in the polarization maintaining optical fiber by the signal and the pump lights to pass through the polarization maintaining optical fiber in a manner not to be influenced by a group velocity difference of each of the signal and the wavelength-converted lights between the first and the second polarization axes.
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