略語大辞典 [Opt] 29 PPW parametric periodic waves パラメトリック周期性波. 位相整合条件下での四光波パラメトリック相互作用.parametric periodic waves; a FPPI(four-photon parametric interaction) with phase and group matching conditions; e.g. in an optical fiber; ref. PSL(parametric soliton laser); ref. DGV(dispersion of group velocity); 丸善「略語大辞典」JLogosID : 11856453