Narrow-Bandwidth Optical Parametric Amplifier TOPAS-SHBC-400

  • Femtosecond pulse conversion to < 20 cm-1 spectral bandwidth
  • 240 nm – 10 μm tuning range
  • Up to 4 mJ pump pulse energy
  • High output stability

Features

  • Femtosecond pulse conversion to < 20 cm-1 spectral bandwidth
  • 240 nm – 10 μm tuning range
  • Up to 4 mJ pump pulse energy
  • High output stability

TOPAS-SHBC-400 combines a second harmonic bandwidth compressor (SHBC) and an optical parametric amplifier (OPA) for the generation of tunable pulses with a spectral bandwidth of 3 – 20 cm-1 when pumped by femtosecond pulses with a spectral bandwidth of 150 – 500 cm-1. The device is designed to be pumped by a fundamental harmonic of a femtosecond Ti:Sapphire laser and covers a wavelength range from 480 to 2400 nm. Optional frequency mixers extend the tuning range down to 240 nm and up to 10 μm.

TOPAS-SHBC-400 specifications are given for the following SHBC output parameters:

  • 400 nm wavelength
  • 0.5 mJ pulse energy

Note 1: Specifications depend on SHBC output wavelength. If it differs from the value above, contact sales@lightcon.com.

Note 2: TOPAS-SHBC-400 output pulse energy scales linearly in 0.5 – 2 mJ range, provided the device is installed and optimized for particular pump energy. The device has to be re-optimized if the pump energy changes more than 10% from the installation value.

Model TOPAS-SHBC-400
Pump wavelength 770 – 830 nm
Pump pulse energy 0.3 – 5 mJ
Pump pulse duration (FWHM) 20 – 200 fs
Repetition rate < 25 kHz
Maximum pump power 25 W 1)
Polarization Linear, horizontal
Spectral bandwidth < 1.2× transform limit
Pulse-to-pulse energy stability < 1% RMS deviation 2)
Pulse duration stability < 1% pulse-to-pulse 3)
Pulse front tilt < 10% of pulse duration
Pulse contrast < 1 : 20
Beam quality (M2) < 1.3 4)
Beam astigmatism < 0.15 5)
Beam spatial profile Gaussian – Super Gaussian
Intensity modulation < 15%, no hotspots 6)
Beam pointing stability < 10 μrad 7)
Beam divergence < 1.2× diffraction limit
Beam height from optical table 125 – 185 mm
Beam diameter (1/e2) < 8 mm 8)
  1. Contact sales@lightcon.com for higher pump power options.
  2. Normalized to average pulse energy, NRMSD.
  3. Normalized to average pulse duration, NRMSD.
  4. M2 specification valid for Gaussian beam.
  5. Normalized astigmatism – difference of the waist positions, divided by Rayleigh length.
  6. Normalized to Gaussian or Super-Gaussian fits, NRMSD.
  7. NRMSD, full angle.
  8. Optional external telescope can be ordered for the beam size 8 – 28 mm.
Model SHBC
Output wavelength 385 – 415 nm
Conversion efficiency > 25% (20 – 70 fs),
> 35% (70 – 200 fs)
Spectral bandwidth < 10 cm-1
Time-bandwidth product < 1.2
Polarization Horizontal
Pulse-to-pulse energy stability < 3% RMS deviation 1)
  1. Normalized to average pulse energy, NRMSD.
Model TOPAS-SHBC-400
Tuning range

480 – 800 nm (Signal) 1)
800 – 2400 nm (Idler)

Conversion efficiency at peak
(Signal and Idler combined)
> 20% 2)
Spectral bandwidth < 20 cm-1 @ 500 – 730 nm, 870 – 2400 nm
Time-bandwidth product < 1.2
Polarization Vertical (Signal)
Horizontal (Idler)
Pulse-to-pulse energy stability < 6% RMS deviation 3) @ 500 – 700 nm, 900 – 2000 nm
  1. Some energy and spectrum modulation possible in the 730 – 870 nm range.
  2. Assuming 0.5 mJ, 400 nm pump from SHBC. Conversion efficiency at peak of > 20%.
  3. Normalized to average pulse energy, NRMSD.
Extension SHS SHI
Tuning range 240 – 400 nm 400 – 480 nm
Conversion efficiency at peak > 4% 1) > 3% 1)
Spectral bandwidth < 20 cm-1 < 20 cm-1
Polarization Horizontal Vertical
  1. Assuming 0.5 mJ, 400 nm pump from SHBC.
Extension DFG1 DFG2
Tuning range 2.4 – 5 μm 4.7 – 10 μm
Conversion efficiency at peak > 0.4% 1) > 0.1% 1)
Polarization Vertical Horizontal
  1. Assuming 0.5 mJ, 400 nm pump from SHBC.

Structural Heterogeneity in the Localized Excited States of Poly(3-hexylthiophene)

W. Yu, T. J. Magnanelli, J. Zhou, and A. E. Bragg, The Journal of Physical Chemistry B 22 (120), 5093-5102 (2016).

TOPAS Optical Parametric Amplifiers for Ti:Sapphire Lasers

Product datasheet.

Rev. 05/01/2024. Size 270.8 KB.

Femtosecond Laser Systems for Science

Product catalog.

Rev. 14/03/2024. Size 17.2 MB.

飞秒激光器飞秒科研系统

Product catalog in Chinese.

Rev. 14/03/2024. Size 17.8 MB.

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