Typical autocorrelation intensity (e.g. at 640 nm)
FemtoFiber pro TVIS
Tunable Pulsed Fiber Laser
- Tunable visible fiber laser @ 488 - 640 nm
- High spectral purity due to selective SHG process
- SAM mode locking, PM fiber based MOPA system
- Robust and reliable design, push-button operation
- Free beam output
The FemtoFiber pro TVIS is the model of the FemtoFiber pro series that yields tunable visible sub-picosecond pulses from 488 nm to 640 nm. It comprises a very robust SAM mode-locked master-oscillator and a core-pumped high power amplifier. The supercontinuum generated in a highly nonlinear fiber (HNLF) is frequency converted by a manually tunable SHG crystal. Two motorized prism compressors allow adjustment of the supercontinuum and the optimization of the pulse width. The wavelength tuning is done by a manual micrometer screw and allows a continuous wavelength change by a fan-out structured crystal.
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Specification
Wavelength tuning range 488 - 640 nm (488 - 700 nm with dual-crystal option) Average output power 1 - 10 mW* Pulse duration < 1 ps (< 250 fs with short-pulse option)* Repetition rate 80 MHz -
Additional Information
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Options
M40: Repetition rate 40 MHz instead of standard 80 MHz - Oscillator design with 40 MHz repetition rate
- Some specifications may change (contact us for details)
- Cannot be combined with VAR option
Mxx: Customized repetition rate, e.g. 68 MHz, 77 MHz, … AMP: Multi-Beam Systems - Extension system equipped with amplifier, but no oscillator („AMP“)
- FC/APC fiber input for external seeding by the master system
- Additional seed ports can be added to each master
- Allowing multi-beam system of up to 4 units
- Combination of all FemtoFiber pro variants possible
- Popular multi-beam systems:
MASTER Model AMP 1 Model Purpose NIR TNIR AMP CARS laser source NIR UCP AMP Broadband CARS source IR SCIR AMP OPCPA seeder system TVIS TVIS AMP Pump-probe spectroscopy
VAR: Variable repetition rate - Adaptation to the oscillator unit, enabling modulation of the repetition rate
- Adjustable resonator length by fast control piezo transducer, resonance frequency > 1 kHz
- Slow control based on motorized stage, tuning range typ. 200 kHz (± 100 kHz to nominal repetition rate)
LRC: Laser repetition rate control - Phase-locked loop electronics for synchronization of the laser pulse train to an external reference signal or a reference laser system
- RMS jitter < 200 fs
- Compact electronics rack with power supply
- USB interface and control software
TNIR: Addition for FemtoFiber pro UCP or TVIS (two-in-one system) - Wavelength tuning range 830 - 1100 nm
- Average output power 1 - 5 mW (wavelength-dependent)
- Pulse width < 200 fs
- Repetition rate 80 MHz standard
- Linear polarization > 95% (horizontal)
- Beam shape TEMoo, M² < 1.2
- Beam divergence < 1 mrad
- Output coupling: free-space
Dual-crystal option: Extended tuning range from 488 - 700 nm by using two exchangeable crystals Short-pulse option: Pulse duration below 150 fs over the whole tuning range -
Applications
- Fluorescence Lifetime Imaging Microscopy
- Widely tunable visible light source
- Pump-probe spectroscopy (in combination with a second system/multiple beam configuration)
- Downloads
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Literature
- Scientific Article: M. Kempf, et al., Two-color Kerr microscopy of two-dimensional materials with sub-picosecond time resolution AIP (2021)
- Scientific Article: G. Plechinger, et al., Trion fine structure and coupled spin–valley dynamics in monolayer tungsten disulfide, Nature Communications 7, (2016)
- Proceedings Article: Lang, M. et al., Technology and applications of ultrafast fiber lasers (Proceedings of SPIE Vol. 8330, 833007, 2012)
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