FemtoFiber ultra FD

Femtosecond fiber laser with fiber delivery for multi-photon microscopy

  • A game-changer for simplifying multi-photon microscopy
  • No mirror alignment, no power meter, just automated fiber coupling
  • Safeguard monitor to make misalignment an impossibility

Completely replacing the free-space paths between a Watt-level femtosecond laser and a two-photon microscope is a game-changer for modern microscopy. Delivering femtosecond pulses directly from the laser source to the microscope via an optical fiber enables completely new microscope designs and brings laser safety and ease of use to a new level.

 

 

In the FemtoFiber ultra FD, TOPTICA combines a polarization-maintaining hollow-core fiber with TOPTICA’s proprietary COOL technology:  COOLAC offers hands-off, automated fiber coupling that eliminates manual alignment at installation, optimizes fiber coupling at the touch of a button, and monitors fiber coupling efficiency completely internally without the need for external tools or equipment. This means the fiber can stay connected to the microscope or user setup at all times.

Additionally, an integrated AOM for fast power modulation, software-controlled dispersion precompensation (GDD) and TOPTICA’s unique Clean Pulse Technology complete the laser system.

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  • Specifications

    Center wavelength780 nm920 nm1050 nm
    Pulse duration< 170 fs< 130 fs< 130 fs
    Average output power after fiber [with AOM]> 0.5 W> 0.5 W (typ. 0.6 W)> 0.7 W (typ. 0.8 W)
    Repetition rate80 MHz
    Motorized dispersion precompensation (GDD)-20,000 .. +1,000 fs²
    Integrated power control (AOM)bandwidth > 1 MHz, input impedance 1 k Ω
    Linear polarization> 90 %, axis not aligned
    Fiber Output ConnectorFC/APC
    Fiber Cable Length (max.)2 m
    Fiber Cable Typestainless steel reinforced
    Dimensions laser head76 x 165 x 465 mm³ (excl. feet)
    Dimensions laser control unit140 x 483 x 534 mm³ (with handles)
    Power supply110 to 240 V AC
    Power consumption< 250 W
    PC InterfaceEthernet, USB
    Communication protocol and control optionsGraphical User Interface (GUI),  TOPTICA Python Laser SDK, Device Control Protocol (DeCoP)
    Environment temperature19 .. 25 °C (operating), 18 .. 28  °C (extended operating, not all specs guaranteed), 0 .. 40 °C (storage)
    Environment humidity< 60 %, non-condensing with dew point at < 19 deg.C.
    OptionsFiberDock for collimation with max 3 mm beam size (1/e²) 
  • Additional Informations
    Typical emission spectrum (linear)
    Typical emission spectrum (linear)
    Autocorrelation trace
    Autocorrelation trace
  • Applications

    Multiphoton Microscopy

    Neuroscience

  • Literature

    Conference Proceeding: Konrad Birkmeier, et al., "Femtosecond fiber delivery at 920 nm for two-photon microscopy", Proc. SPIE 12847, Multiphoton Microscopy in the Biomedical Sciences XXIV, 1284703 (12 March 2024)