Narrow Bandwidth Optical Parametric Amplifier



  • Converts femtosecond pulses to > 20 cm-1 bandwidth
  • Pump energy up to 4 mJ
  • Tuning range spanning from 240 nm to 10 µm, computer controlled
  • High output stability throughout the entire tuning range
  • Grating frequency selector for bandwidth limited output


Second Harmonic Bandwidth Compressor (SHBC)-TOPAS-400-WL system is a nonlinear optics device devoted for generation of a narrow bandwidth (3 – 20 cm-1) continuously wavelength tunable pulse when pumped by a femtosecond pulse with bandwidth of 150 – 500 cm-1.

The device is pumped by a fundamental harmonic of a femtosecond Ti:sapphire laser amplifier and continuously covers wavelength range from 480 to 2400 nm. With optional frequency mixers this range can be extended down to 240 nm and up to 10 microns.

Output Specifications are given for:
  • 800 nm
  • 0.5 mJ
  • 20 – 200 fs
  • Gaussian beam pump at 1 kHz

Note 1:
Pump pulse duration and wavelength affects the specifications. Check the specifiaction with us if the wavelength or the pulse duration differ from above values.

Note 2:
TOPAS output energy scales up linearly in 0.5 – 2 mJ range, provided the device is installed and optimized for a particular pump energy (the device has to be re-optimized for optimal performance should the pump energy change more than ±10 % from the installation value).

Pump Laser Requirements
SHBC-400 Output
TOPAS-400-WL Output
UV extension (240 – 480 nm)
DFG Extension (2400 – 10000 nm)

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