• Single shot to 4 MHz
  • Pump power up to 70 W
  • High pulse energy for 3-photon imaging
  • Broad tuning range: 650 nm to 900 nm (signal), 1200 nm to 2500 nm (idler)

The Spirit-NOPA® is a family of automated non-collinear optical parametric amplifiers (NOPA) specifically built and optimized for the industry-proven Spirit® and Spirit One™ ultrafast lasers. The turn-key, high repetition rate Spirit femtosecond laser combines with the Spirit-NOPA to create a powerful, user-friendly tunable, high repetition rate source of ultrashort pulses for in-vivo, deep tissue imaging in neuroscience, spectroscopy, and other ultrafast scientific applications.

Spirit-NOPA-VISIR delivering unprecedented performance for 3-photon imaging:

In combination with our industry-proven Spirit platform, the Spirit-NOPA-VISIR provides an ideal platform for 3-photon excitation microscopy. Spirit-NOPA-VISIR comprises two amplification stages. The first amplification stage is non-collinear, which generates broad bandwidth, and the second amplification stage is collinear, which enables a broad tuning range.

Spirit-NOPA-VISIR provides a broadly tunable output of ultrashort pulses with a tuning range of 650 nm to 900 nm (signal) and 1200 nm to 2500 nm (idler), including key wavelengths for deep-tissue, 3-photon imaging. Optionally, the signal output can be compressed down to <70 fs using an external prism-based compressor unit, and the idler output down to <100 fs, using an integrated bulk compressor. When pumped by a Spirit ultrafast laser with up to 70 W and at a repetition rate of up to 4 MHz, the Spirit-NOPA-VISIR enables unprecedented performance for 3-photon imaging.

In order to bridge the tuning gap between 900 nm and 1200 nm, Spirit-NOPA-VISIR can optionally be configured with the Dual Pulse Length Option. With that it is possible to extend the tuning range of the Spirit-NOPA-VISIR to that of a conventional OPA closing the gap between signal and idler.

Spirit-NOPA-3H, Spirit-NOPA-2H, and Spirit-NOPA-IR for ultrashort pulses from UV to IR:

Spirit-NOPA-3H includes a built-in third harmonic generator and its output is tunable from 500 nm to 900 nm with a pulse width as short as sub-30 fs and an output energy up to >0.5 μJ.

Spirit-NOPA-2H includes a built-in second harmonic generator, to convert the Spirit IR beam to 520 nm. The output of the Spirit-NOPA-2H is tunable from 650 nm to 900 nm with a pulse width as short as sub-30 fs and an output energy up to >3 μJ.

Spirit-NOPA is fully computer controlled to allow for easy wavelength tunability. Its built-in bandwidth selector and integrated computer controlled compressor provide a pulse width agility unmatched by other ultrafast laser technologies.


3-photon excitation microscopy
Single molecules studies
Nanomaterials science
Ultrafast surface dynamics
Multi-dimensional spectroscopy

Spirit-NOPA Specifications1

Tuning Range 500–900 nm 650-900 nm 1200-1600 nm  
Pulse Energy2 0.5 μJ at 580 nm (peak)
0.25 μJ at 700 nm
3 μJ at 700 nm (peak)
1.2 μJ at 850 nm
6 μJ at 1300 nm
0.3 μJ at 1500 nm
Pulse Width <30 fs at 530–670 nm
<80 fs at 670–800 nm
<30 fs at 700-850  nm

<80 fs at 1200-1600  nm

Tuning Range 250–450 nm 325–450 nm 600-800 nm  
Pulse Energy2 0.05 μJ at 290 nm (peak) 0.3 μJ at 350 nm (peak) 0.06 μJ at 650 nm (peak)  
Repetition Rate Single shot to 1 MHz  
Wavelength 1030 nm or 1040 nm  
Pulse Energy5 12-120 μJ 10-120 μJ  
Max. Input Power 8 W 16 W  

Spirit-NOPA-VISIR Specifications1

Tuning Range 650–900 nm (signal)
1200–2500 nm (idler)
Conversion Efficiency >10% at peak, when pumped at >20 µJ
>5% at peak, when pumped at 8–20 µJ
(uncompressed signal + idler combined)
Pulse Width3 <350 fs uncompressed3
5–70 fs at 650–900 nm with signal compressor
40–100 fs at 1200–2000 nm with idler compressor
Conversion Transmission Signal prism compressor: >65% at 650–900 nm
Idler bulk compressor: >80% at 1200–2000 nm
Tuning Range 325–450 nm (SH of signal)
600–700 nm (SH of idler)
Pulse Energy >10% of signal/idler at peak  
Tuning Range 650–1030 nm (signal)
1040–2500 nm (idler)
Uncompressed output
Repetition Rate Single shot to 4 MHz  
Wavelength 1030 nm or 1040 nm  
Pulse Energy5 8–120 µJ  
Max. Input Power 70 W  

1. Due to our continuous product improvement program, specifications are subject to change without notice.
2. When pumped with 40 µJ at 1040 nm. For other pump levels, please contact Spectra-Physics.
3. Compressors for signal and/or idler are optionally included.
4. Spirit-NOPA pump parameters are determined at the time of order and are factory set.
5. Spirit-NOPA is optimized for one pump pulse energy only.

Spirit-NOPA-2H, - 3H, and IR Dimensions

Spirit-NOPA-VISIR Dimensions

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