
Jasper Flex: High Power Femtosecond Fiber Laser
Jasper Flex is our new high-power femtosecond laser for microprocessing. Its compact size makes it even easier to use and to integrate into existing systems. It delivers pulses with a maximum energy of 30 uJ at up to 1 MHz repetition rate. The user-configurable burst mode brings new capabilities in industries manufacturing consumer electronics, integrated photonics, and displays.
We believe that the most important part of the high-power laser is a femtosecond oscillator. It is the heart of our every system. Jasper Flex is based on Fluence’s unique technology of truly all-fiber, SESAM-free oscillator that was tested to operate at 40 g vibration. Additionally, it was assessed in a vast range of temperatures spanning over 50 deg C. The oscillator together with a fiber preamplifier creates a monolithic construction immune to misalignment. This defines the robustness of the Jasper Flex system.
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Jasper Flex | |
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Maximum average power | > 30 W |
Maximum pulse energy | > 30 μJ |
at repetition rate up to | 1 MHz |
System base repetition rate | 20 ± 2.5 MHz |
Two stage repetition rate tuning: | Selectable with control software |
Internal repetition rate | 1 MHz – 20 MHz |
Pulse picker | Single pulse – 1 MHz |
Pulse duration | < 270 fs FWHM (< 250 fs typ.) |
Pulse duration tuning | < 270 fs – 8 ps (optional 270 fs – 20 ps) |
Central wavelength | 1030 ± 5 nm |
Optional wavelength outputs | With Harmonic Generation Module (HGM): 515 nm, 343 nm, 258 nm |
Built-in pulse picker | Pulse on demand, any division of the base repetition rate |
Beam quality M2 | < 1.3 (typical <1.15) |
Polarization | Linear, vertical |
Burst mode for process enhancement | Included |
External gating trigger | Included |
Laser control software | Included |
All specifications are subject to change without prior notice due to continuous improvements.
Available options:
- Wide pulse duration tuning – up to 20 ps
- Harmonic generation:
- Second Harmonic output (515 nm)
- Third Harmonic output (343 nm)
- Fourth Harmonic output (258 nm)
- For continuous wavelength tuning, please check Fluence Harmony Optical Parametric Amplifier

- All fiber design
- Based on truly all-fiber, SESAM-free Fluence Oscillator
- Long lifetime
- Unprecedented stability
- Reduced size
- Standard 270 fs – 8 ps pulse duration tuning by default
- Burst mode for process enhancement included by default
Jasper is the right choice whenever there is a need for high power and high pulse energy while maintaining a very short pulse duration. Some applications include:
- Display repair
- Micromachining
- Polymer cutting
- Surface structuring
- Ophthalmology
- Pumping of Optical Parametric Amplifiers (e.g. Fluence Harmony)
- Pump and probe spectroscopy (when used in tandem with Fluence Harmony)
- FIBS sample preparation for AFM
- Three-photon excited fluorescence (when used in tandem with Fluence Harmony)