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In addition, high-power femtosecond lasers have demonstrated strong application potential in terahertz radiation generation based on LN (lithium niobate) crystals. The terahertz waveband has wide applications in materials science, life sciences, communication technology, and other fields. Femtosecond lasers can effectively generate strong terahertz radiation through the interaction of high-order harmonic generation technology with nonlinear crystals, advancing the in-depth study of terahertz physics and applications. This application relies on the powerful laser source of femtosecond lasers and their precise pulse control capabilities, enabling the generation of terahertz radiation with specific frequencies and widths, meeting various scientific research needs.
Y-laser Successfully Delivers Mid-Infrared Tunable Femtosecond Laser System to Huazhong University of Science and Technology
In the mid-infrared range, the advantages of high-energy femtosecond lasers are more pronounced, especially in molecular vibration spectroscopy applications. By pumping mid-infrared optical parametric amplifiers (OPA), femtosecond lasers not only generate high-quality mid-infrared laser light but also enable wide wavelength tuning, with a tuning range from 1.35 μm to 4.5 μm, meeting the needs of molecular vibration and rotational spectroscopy research. These mid-infrared lasers provide an extremely precise light source for molecular spectroscopy, capable of exciting vibrational modes in molecules. By precisely controlling the laser wavelength, researchers can explore interactions between different molecules and uncover the details of complex chemical reactions and molecular structures. The tunability of femtosecond lasers, especially in molecular vibration spectroscopy, offers great flexibility for experiments, supporting research into various experimental requirements and molecular systems. Their high peak power enhances molecular excitation efficiency, providing higher research accuracy for time-resolved spectroscopy, ultrafast spectroscopy, and other techniques.
Based on the above requirements, our customer selected two standard product series of Y-laser femtosecond lasers to conduct cutting-edge scientific research.
On-site delivery
This high-energy femtosecond solid-state laser is a high-precision laser source designed for complex scientific applications, capable of providing stable output to meet various experimental needs. Its central emission wavelength is 1030±10nm, ensuring a reliable laser source. The laser pulse width (FWHM) is less than 250fs, supporting applications that require ultrafast time resolution. The maximum single-pulse output energy reaches up to 2mJ, making it suitable for high energy density laser processing and handling tasks.
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HELIOS-20W-HE |
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Typical Pulse Duration of the HELIOS Series（FWHM=228.1fs） |
Left: Near-field Spot; Right: Far-field Spot |
The repetition rate of this laser can be adjusted between 10 kHz and 100 kHz, providing flexibility to meet the demands of different experimental conditions. Its average output power reaches up to 20W, ensuring efficient energy transfer and application capabilities, meeting the requirements of high-intensity applications. The laser beam mode is the fundamental TEM00 mode, with a beam quality factor (M²) of less than 1.3, approaching the diffraction limit, ensuring its suitability for efficient OPA pumping and other experiments the customer plans to conduct.
In terms of power stability, the output power fluctuation of this laser is less than 0.5% (RMS), maintaining stable output even during extended operation. Additionally, the laser's beam diameter is 5±1mm (1/e²), ensuring consistency and controllability of the beam size. The beam's polarization is linear, making it suitable for polarization-sensitive optical applications. To ensure stability during high-power operation, the laser employs water-cooling for heat dissipation, effectively managing heat and ensuring stable long-term operation.
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HELIOS Series M² Measurement Data (M² < 1.1) |
HELIOS-20W-HE Power Stability RMS = 0.25% @ 24h (20W/2mJ/10kHz) |
The high-energy infrared optical parametric amplifier pumped by this laser offers exceptional performance, with a tuning range of 1350–2000 nm (signal light) and 2100–4500 nm (idler light). The maximum pump power can reach 20W, with a pump pulse energy compatibility range from 400 µJ to 2000 µJ. Its peak conversion efficiency exceeds 9% under pump conditions ranging from 400 to 2000 µJ, with a pulse duration of less than 200 fs. Long-term power stability and pulse energy stability at 1550 nm are both better than 1% RMS, ensuring stable and reliable output. The beam is linearly polarized, making it suitable for a variety of scientific research applications.
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AURORA-IR |
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AURORA-IR Series Signal Light Spectrum (1350 nm - 2100 nm) |
AURORA-IR Series Typical Pulse Duration FWHM = 158 fs @ 1600 nm |
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AURORA-IR Series Wavelength-Power Typical Tuning Curve |
AURORA-IR Series 20H Power Stability RMS = 0.6127% @ 1600 nm |
Customer Feedback
Before purchasing Y-laser products, we had selected a European brand, but due to import/export license restrictions, we chose Y-laser femtosecond lasers. As far as domestic brands go, they are the only company offering a 2mJ Yb femtosecond laser and mid-infrared OPA. To be honest, we were unsure during the purchase process, but based on our current experience, the quality of Y-laser femtosecond lasers is very close to the imported products we had used previously, and the performance has been satisfactory. Y-laser has a strong R&D team, with smooth pre-sales communication that quickly understood our scientific needs. The installation process was also very efficient, and they were flexible in adapting to our customized on-site installation requirements. Compared to similar imported products, Y-laser has much faster delivery times, up to six months ahead, and without the hassle of import/export licenses, which has greatly improved our work efficiency.
We are very satisfied with the product and service quality of Y-laser and will consider purchasing Y-laser MPC modules next to compress the pulse duration to <40fs, as well as multiple OPAs (210-16000 nm) for use.
We look forward to Y-laser continuing to provide high-quality products and services in the future, fully replacing imported products. We believe that in the near future, Y-laser will offer even more perfect solutions for us.
-- Professor Liu, Huazhong University of Science and Technology