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.
- Specifications
Center wavelength 780 nm 920 nm 1050 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 rate 80 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 Connector FC/APC Fiber Cable Length (max.) 2 m Fiber Cable Type stainless steel reinforced Dimensions laser head 76 x 165 x 465 mm³ (excl. feet) Dimensions laser control unit 140 x 483 x 534 mm³ (with handles) Power supply 110 to 240 V AC Power consumption < 250 W PC Interface Ethernet, USB Communication protocol and control options Graphical User Interface (GUI), TOPTICA Python Laser SDK, Device Control Protocol (DeCoP) Environment temperature 19 .. 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. Options FiberDock for collimation with max 3 mm beam size (1/e²) - Additional Informations
Typical emission spectrum (linear) 
Autocorrelation trace - Applications
- 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)
