Abstract
Simultaneous wavelength conversion and pulse compression are proposed and demonstrated exploiting cascaded second-order nonlinear processes in periodically domain-inverted LiNbO3 waveguides. The influences of initial pulse widths and waveguide length on the conversion efficiency and converted pulse compression are theoretically analyzed. Tunable wavelength conversion is performed for the signal pulse with the temporal width of 7.5ps and repetition rate of 40GHz. Conversion efficiency of more than −24dB is obtained for 35-nm conversion span under average signal power of 10dBm when a CW control wave is adopted.
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