Pulse-to-pulse wavelength switching of a nanosecond fiber laser by four-wave mixing seeded stimulated Raman amplification

• DOI: 10.1364/ol.42.004406
• Publication Date: 2017-10-23T15:24:42Z
• Authors: Matthias Eibl; Sebastian Karpf; Hubertus Hakert; Torben Blömker; Jan Philip Kolb; Christian Jirauschek; Robert Huber
• Keywords: Nanosecond; Four-wave mixing; Narrowband

We report on a multi-color fiber laser based four-wave mixing (FWM) and stimulated Raman scattering (SRS), delivering rapidly wavelength switchable narrowband output at 1064, 1122, 1186 nm. High-power pulses from nanosecond pulsed master oscillator power amplifier 1064 nm are combined with 1122 of seed light for amplification the first Stokes order in standard single-mode fiber. With increasing power, we observe spectral component nm, without any additional or resonator this wavelength. analyze occurrence second both experimentally theoretically suggest it is result FWM seeding SRS demonstrate that shifting can be controlled electronically within microseconds very rapid even pulse-to-pulse changes. This conversion method extend coverage single-wavelength lasers biomedical imaging.