WHITE DWARF OPCPA 5 W  POWERED BY COHERENT

for 3-photon microscopy

The White Dwarf OPCPA is a compact and  robust laser system especially designed for multi-photon microscopy at high performance parameters.

  • > 2 µJ at 1300 nm @ 2 MHz

  • > 2 µJ at 1700 nm @ 2 MHz

  • repetition rates up to 4 MHz available

  • short pulse durations < 50 fs at sample

  • pumped by Coherent Monaco industrial femtosecond laser
  
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Bio imaging

Volumetric imaging at high resolution / larger imaging volume and higher frame rates by higher repetition rate / deep tissue penetration in all spectral windows / highest multiphoton signal and better signal-to-noise ratio with shorter pulses at lower heat load
• In vivo brain imaging
• Multiphoton absorption imaging
• Deep optical imaging
​of tissue

Volumetric imaging of deep brain tissue
The high average power of the White Dwarf OPCPA allows imaging of brain tissue - beyond 1 mm  - in a large volume while maintaining single-cell resolution.


3D rendering of Hybrid Multiplexed Sculpted Light Microscopy recording in mouse PPC, cytosolic GCaMP6f (green: 2p, cyan: 3p), Vaziri Lab. (Weisenburger et al., Volumetric Ca2+ Imaging in the Mouse Brain Using Hybrid Multiplexed Sculpted Light Microscopy, Cell (2019), https://doi.org/10.1016/j.cell.2019.03.011).
Our White Dwarf OPCPA powered by Coherent has its pump laser already on board to enter the next level of stability. We integrate the Coherent Monaco industrial femtosecond laser on a small footprint with state-of-the-art White Dwarf OPCPA technology to bring industrial performance to scientific output parameters.

This White Dwarf version is especially designed for multi-photon microscopy at high performance parameters. The highest peak power available for three-photon microscopy on the market allows neuroscientists to image deeper and at higher speed.
 
WD-960
WD-1300
WD-1700
WD-1300-dual
Central wavelength
960 nm
1300 nm
1700 nm
Two synchronized outputs:
960 and 1300 nm, or
1300 and 1700 nm
Pulse duration (FWHM)
< 50 fs
< 50 fs
< 70 fs
< 50 fs at 1300 nm,
< 70 fs at 1700 nm
Average power
> 5 W
> 4 W
> 5 W
> ca 2 W each output
Pulse energy
> 5 µJ
> 4 µJ
> 5 µJ
> ca 2 µJ each output
Repetition rate
single-shot to 10 MHz
single-shot to 10 MHz
single-shot to 4 MHz
single-shot to 4 MHz
Beam quality M2
< 1.3
< 1.3
< 1.3
< 1.3
Power stability (12 hrs)
< 1 %
< 1 %
< 1 %
< 1 %
Dimensions
80 cm x 80 cm
80 cm x 80 cm
80 cm x 120 cm
80 cm x 120 cm
Pump laser incl.
Coherent Monaco 60 W
Coherent Monaco 60 W
Coherent Monaco 60 W
Coherent Monaco 60 W
Example sytem White Dwarf with integrated Coherent Monaco.
Normalized spectral intensity: White Dwarf OPCPA WD-1300-dual, central wavelength ca. 1300 nm for 3-photon microscopy and second parallel output ca. 960 nm for 2-photon microscopy, ca. 2 W average power per output, 1 MHz repetition rate, Pump laser Coherent Monaco 60 W.
Short-term pulse-to-pulse stability measured with fast photodiode and oscilloscope over 0.8 ms: Pump laser Coherent Monaco 60 W, 2 MHz repetition rate, White Dwarf OPCPA WD-1300, average pulse energy > 2 µJ (4 W) and 0.4 % standard deviation.
Long-term power stability measured with powermeter (averaged shots) over more than 50 hours: Pump laser Coherent Monaco 40 W, 8 MHz repetition rate, White Dwarf OPCPA WD-960, 3.24 W average power and 0.34 % standard deviation.
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