Optical Parametric Amplifier

Optimized for Time-Resolved Spectrometry
For Ultrafast Ti:Sapphire Amplifiers
Fully Automated
apollo t opa

The Apollo-T OPA has been developed to extend the tuning range of a kHz Ti:Sapphire amplifier from the UV to the Mid-IR. It is optimized to work with Ultrafast Systems’ spectrometers. High stability and high efficiency are achieved through two-step amplification of a white-light supercontinuum, and nonlinear crystal tuning, optical delay compensation, and wavelength separation are fully computer controlled.

This OPA has been designed as a capable yet easy-to-use light source with the spectroscopist in mind. Its layout has been optimized to fit neatly alongside new or existing spectrometry systems, minimizing the amount of table space required. The inclusion of multiple frequency conversion schemes allows for computer-controlled tuning of the output wavelength, while collinear output from a single port reduces the need for external beam routing optics. The timing of the pulse output remains consistent across the whole wavelength tuning range. Optional integrated stages for the generation of the second and third harmonics of the fundamental laser wavelength further reduce the need for external routing optics and a harmonics generator.

Features & Specs


  • Designed for amplified Ti:Sapphire lasers

  • Single enclosure design 36cm x 97cm (14” x 38”)

  • Optimized for use with Ultrafast Systems’ delay lines and spectrometers

  • Single port output across the entire tuning range of each option (UV-VIS and mid-IR)

  • Fully automated operation – no manual action required for changing the output wavelength

  • Fully tunable from 240 nm to 10 µm with an option of built-in SHG (400 nm) / THG (267 nm)

  • Consistent output pulse timing and beam pointing across the entire tuning range – very convenient for pump-probe experiments.

  • Diagnostic output port (signal and idler check)

  • Alternate input and output ports for increased table layout flexibility



Range (nm)

Energy (uJ) at peak*



240 - 295

> 15


FH Signal

300 - 400

> 20


FH Idler

400 - 480

> 10


SF Signal

480 - 540

> 70


SF Idler

540 - 600

> 40


SH Signal

600 - 800

> 60


SH Idler

800 - 1150

> 30



1150 - 1600

> 120



1600 - 2600

> 60



2400 - 10000

> 10

V, H

*measured with 100 fs, 1 mJ pump input

Pump Laser Requirements


~ 800 nm

Pulse duration

35 - 150 fs

Pulse energy

≥ 0.5 mJ

Beam diameter

≤ 12 mm (1/e2)


< 2% (pulse-pulse)


Typical 2nd  harmonic of signal spectra:

typical 2nd  harmonic of signal spectra

Typical 4th  harmonic of signal spectra:

typical 4th  harmonic of signal spectra

Typical Sum frequency of signal spectra:

typical sum frequency of signal spectra

Long-term stability of the output (700nm, SHS mode):

long term stability of the output (700nm, shs mode)
Brochures & Examples

Apollo-T Brochure

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