Pulse-to-pulse wavelength switching of diode based fiber laser for multi-color multi-photon imaging

Matthias Eibl, Sebastian Karpf, Hubertus Hakert, Daniel Weng, Torben Blömker, Robert Huber


We present an entirely fiber based laser source for non-linear imaging with a novel approach for multi-color excitation. The high power output of an actively modulated and amplified picosecond fiber laser at 1064 nm is shifted to longer wavelengths by a combination of four-wave mixing and stimulated Raman scattering. By combining different fiber types and lengths, we control the non-linear wavelength conversion in the delivery fiber itself and can switch between 1064 nm, 1122 nm, and 1186 nm on-the-fly by tuning the pump power of the fiber amplifier and modulate the seed diodes. This is a promising way to enhance the applicability of short pulsed laser diodes for bio-molecular non-linear imaging by reducing the spectral limitations of such sources. In comparison to our previous work [1, 2], we show for the first time two-photon imaging with the shifted wavelengths and we demonstrate pulse-to-pulse switching between the different wavelengths without changing the configuration.
Original languageEnglish
Title of host publicationFiber Lasers XIV: Technology and Systems
EditorsIngmar Hartl, Craig A. Robin
Number of pages6
Publication date07.03.2017
ISBN (Print)978-151060607-4
Publication statusPublished - 07.03.2017
EventFiber Lasers XIV: Technology and Systems 2017 - San Francisco, United States
Duration: 28.01.201702.02.2017
Conference number: 127683

Research Areas and Centers

  • Academic Focus: Biomedical Engineering


Dive into the research topics of 'Pulse-to-pulse wavelength switching of diode based fiber laser for multi-color multi-photon imaging'. Together they form a unique fingerprint.

Cite this