[A-3-4] 2f-3f Optical Wavelength Conversion Device with PPLN waveguides K. Hitachi1、A. Ishizawa1、T. Nishikawa1、M. Asobe2、T. Sogawa1 (1.NTT Basic Res. Lab.、2.NTT Photonics Lab. , Japan) https://doi.org/10.7567/SSDM.2012.A-3-4