Phase matching for parametric amplification in a single-mode birefringent fiber: influence of the non-phase-matched waves

Observation of Non-Phase-Matched Parametric Amplification in Resonant Nonlinear Optics

“…Our measurements are found to verify closely the longstanding theoretical results of Bloembergen and Shen [1] and reveal clearly how phase matching can be selfinduced in this system despite the weak initial influence of four-wave mixing. Also, our work emphasizes the important role of non-phase-matched waves in wave mixing phenomena [14]. Finally, we note that a large anti-Stokes to Stokes power ratio of nearly 10% has recently been observed in a photonic crystal fiber thanks to its large nonlinearity and reduced dispersion in the visible [15], which opens up new exciting possibilities for up-frequency conversion applications.…”