OOFDM signal-based low-cost low-polarization sensitive wide tunable wavelength conversion device and method
A wavelength conversion and low-polarization technology, applied in the field of low-cost, low-polarization-sensitive and wide-tunable wavelength conversion devices, can solve the problems of unfavorable commercial production and high system cost
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[0044] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0045] Such as figure 1 As shown, in this embodiment, the device includes:
[0046] Off-line digital signal processing module 1 at the sending end, used to generate electrical OFDM signals;
[0047] A directly modulated laser 2 for generating signal light modulated with an electrical OFDM signal;
[0048] A single-mode laser 3 for generating pump light;
[0049] The polarization controller 4 is used to adjust the polarization angle of the signal light;
[0050] The polarization controller 5 is used to adjust the polarization state of the pump light to form an angle of 45 degrees with the main axis of the first polarization beam splitter;
[0051] An optical coupler 6, used to couple signal light and pump light together;
[0052] Polarization beam splitter 7, used to split the coupled signal light and pump light into two mutually orthogon...
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