High-Power Femtosecond Solid-State Lasers

STHO series high-power femtosecond solid-state lasers combine laser diode direct pumping and chirped pulse amplification technology, offering a flexible range of parameters.

They are capable of delivering single pulse energies up to >2mJ, with the shortest pulse widths being <200fs, electronically adjustable up to 10ps. The fundamental frequency central wavelength is 1030nm, with frequency conversion capabilities to output 515nm, 347nm, 258nm wavelengths. 

Users can select different repetition rates and output energies through software control, based on specific applications.

Features

• Up to 2mJ Single Pulse Energy Customizable
• Pulse Width Adjustable From 200fs to 10ps
• Maximum Output Power of 20W
• Repetition Rate: Single Shot to 100kHz
• Flexible Energy Attenuation

Applications

• Aerospace Precision Machining
• Terahertz Light Source
• High-order Harmonic Drive Source
• Optical Parametric Amplifier Drive Source
• Nonlinear Optics
• Ultrafast X-ray Generation
• Femtosecond Laser Direct Writing
• Femtosecond Pump-probe

The STHO series of femtosecond solid-state lasers boast excellent pulse quality. The left image shows the output pulse curve of the STHO-10W-HE series. The blue dashed line represents the Fourier Transform Limited pulse (FTL) from the spectrum on the right, indicating the optimal pulse width achievable by this laser. The black solid line is the actual measured autocorrelation curve, showing that at 1mJ energy output, the pulse width is very close to the FTL, with noise floor intensity less than 3% of the peak value, and the overall pulse intensity has a very small energy distribution beyond ±500fs.

Beam quality M²<1.2

Near field beam profile & Far field beam profile

Power stability, STHO-10W-HE 400uJ, 25kHz, 20 hours, RMS=0.46%

Power stability, STHO-10W-HE 400uJ, 25kHz, 20 hours, RMS=0.46%

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