Low noise ultrafast fiber laser - Aalto - sub 40 fs - 250 mW

The ideal laser for multiphoton microscopy

The ultrafast fiber laser Aalto features a pulse duration below 40 fs and more than 250 mW of average output power at a perfect beam quality. The user friendly, robust, low noise and high peak power laser is the ideal source for multiphoton application as for example label free multiphoton microscopy.

In general these parameters enables higher resolution and deeper imaging. Compared to a conventional ultrafast fiber laser with a pulse duration of 200 fs the efficiency of a two photon process will be increased by a factor of 5.7 at the same average power! In other words, at the same efficiency of the multiphoton process it allows for a reduction of the average power. Therefore photobleaching and phototoxicity will be reduced.

To benefit from the shortest pulse duration at your sampel the laser includes a dispersion pre-compensating module which could be electronically adjusted by the user. This allows you to optimize your imaging quality.

Using shorter pulses – Improve your imaging quality – Improve your results

Key features Aalto

  • Turn key
  • Interlock system
  • Adjustable pulse duration
  • Precompensating dispersion module
  • Remote controllable
  • Optional:
    • Fiber coupling
    • Additional output


  • Biophotonics
  • Multiphoton microscopy
  • Optogenetics
  • Time-resolved spectroscopy
  • Two-photon polymerization
  • 3D micro printing
  • Supercontinuum generation
  • Amplifier seeding
  • Pumping OPOs

Custom solutions are available.

For further information and pricing please contact us.

Ultrafast fiber laser  for multiphoton microscopy - Aalto - Optical pulse

Measured with APE pulseCheck + FROG

Ultrafast fiber laser  for multiphoton microscopy - Aalto - Optical spectrum

Specifications Aalto

Ultrafast fiber laser for multiphoton microscopy - Aalto - Specifications

Technical Drawing Aalto

Ultrafast fiber laser for multiphoton microscopy  - Aalto - technical drawing

Specifications and technical data are subjects to change without notice due to technical developments.

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VALO Innovations GmbH
Hollerithallee 17
30419 Hannover

+49 (0) 511 260 390 70