FiberOptoMeter II

  • FiberOptoMeter II
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The ”optical multimeter” for probing brain circuits allows you:

  • optogenetic stimulation
  • and fluorescence measurement
  • via the same fiber

The applications are:

  • Localized measurement of physiological fluorescence signals (e.g. Ca2+signals) from multiple sites in stimulation of physiological signals in disease model animals and drug testing freely behaving animals including primates
  • Multi-color optogeneticstimulation
  • Near simultaneous optical measurement of cellular activity and optogenetic stimulation
  • Chronic monitoringof physiological signals in disease model animals and drug testing
  • Enhanced localized photodetection for deep-tissue multiphoton imaging
  • Combined fluorescence recording with fMRI imaging

NEW! Now also available with 2 detectors for dual fluorescence detection as well as a desktop version!!



  • Dual-band excitation: 
    450 – 490 nm (OGB1, GCamP, ChR2)
    550 – 590 nm (ArchT)
    Fluorescence recording in 500 – 540 nm band
  • short pulses at high power (optogenetics) on top of
  • constant low power illumination (fluorescence)
  • Ultrafast photodetector:
    hight robustness against high-dose irradiation detecting fluorescence signal immediately after optogenetic stimulation with high sensitivity
  • can also be used as supplemental photodetector channel for multiphoton microscopy
  • compatible with multi-mode SMA fibers incl. non magnetic fibers for fMRI



Available central wavelengths (LED):
450 nm, 470 nm, 570 nm, 617 nm, 625 nm

Excitation band:
450 – 490 nm (blue)
540 – 590 nm (orange)

Max. light power at 200 µm fiber tip:
110 mW/mm2 (blue)
65 mW/mm(orange)

Fiber interface:

Fluorescence detection band:
500 – 540 nm (green)

Fluorescence signal output filter:
200 Hz low-pass (add-on block)

Fluorescence signal output range:
0 ~ -5 V (negative polarity)

Requires 2 module slots of EPMS chassis

Power consumption:


Brochure: FiberOptoMeter Prospectus Manual: FiberOptoMeter Manual