IMPULSE™ PhaseShifter

Megahertz Synchronization Femtosecond High-Average-Power Fiber Laser

IMPULSE™ “PhaseShifter” is an all-diode-pumped, direct-diode-pumped, Yb-doped fiber oscillator/amplifier system capable of producing variable pulse energies up to 10 μJ with user-selectable repetition rate between 200 kHz1 and 25 MHz. With 20 watts average power output at 2 MHz, IMPULSE™ offers more than an order-of-magnitude higher power than has traditionally been available in a one-box ultrashort pulse laser design.

IMPULSE™ is based on a revolutionary new concept in mode-locked oscillator/ amplifier technology. The Yb-doped fiber-oscillator/fiber-amplifier design combines low noise performance associated with solid-state operation with high spatial mode quality of fiber lasers.

IMPULSE™ is a compact, robust, one-box source of femtosecond to picosecond pulses with the ease-of-operation, stability and reliability you expect from a fiber source. All major parameters are computer controlled, which allows easy interface to workstation or experiment. IMPULSE™ is synchronizable to external reference through electronic control of both frequency and phase. It is even iPhone/iPod2 App enabled.

Optional accessories include multi-photon photo-polymerization, waveguide writing, micromachining, harmonic generation, and OPA/NOPA wavelength conversion.

1 Optional pulse picker available to adjust repetition rate in the range of single-shot to 200 kHz.

  • Available with electronic control of frequency and phase
  • Direct-diode-pumped Yb-fiber oscillator/amplifier design
  • All-diode pumped, all-solid state construction
  • >20 Watts Average Power @ 2 MHz repetition rate
  • Repetition rate variable from 200 kHz to 25 MHz
  • Complete computer control including iPhone/iPod App1
  • Robust, one-box design
  • High beam quality
  • Low noise, cw-pumped
  • High stability and longevity

1 iPhone and iPod are Trademarks of Apple Inc.

Performance Parameters
Repetition rate: User adjustable via embedded computer from 200 kHz to 25 MHz (in increments of the oscillator repetition rate divided by a whole integer)1
Pulse energy: User adjustable via embedded computer between 100 nJ and 10 μJ (Example: > 0.8 μJ @ 25 MHz, > 10 μJ @ < 2 MHz)
Average power output: User adjustable via computer up to 20 Watts
Pulse width: User adjustable via computer between < 250 fs and > 8 ps
Transverse mode: TEM00
M2 1.2 – 1.5 depending on pulse energy
Variation in pulse energy: < 1% rms
Center Wavelength: 1.03 microns

1 Optional pulse picker available to adjust repetition rate in the range of single-shot to 200 kHz.

Ideal for

  • Micromachining
  • Photopolymerization
  • Direct-write waveguides
  • High S/N pump/probe
  • OPA/NOPA pumping
  • X-Ray Synchrotron and other synchronizing applications

Model IMPULSE PhaseShifter Installation at BESSY – Read Application Note

Thermoelastic study of nanolayered structures using time-resolved X-ray diffraction at high repetition rate. Navirian, H. A., Schick, D., Gaal, P., Leitenberger, W., Shayduk, R., & Bargheer, M. (2014). Applied Physics Letters, 104(2), 021906.

Synchrotron-based ultrafast x-ray diffraction at high repetition rates. Navirian, H., Shayduk, R., Leitenberger, W., Goldshteyn, J., Gaal, P., & Bargheer, M. (2012). Review of Scientific Instruments, 83(6), 063303.