Nonlinear effects in optical fibers using a high-power Er-dopedfemtosecond fiber laser

摘要

We present new results on supercontinuum generation obtained with a high-power Er-doped femtosecond fiber laser. Our results cover many different types of optical fibers: silica, dispersion-shifted fibers, doped fibers, etc. We have obtained supercontinua covering a wide spectrum from the visible to the mid-infrared ( > 2μm ). We also identified third harmonic generation phenomena and we present experimental results that may exhibit the signature of two-photon absorption in an Yb-doped fiber.