Introduction of Picosecond laser

A picosecond laser is a laser with a pulse width of a picosecond. With the characteristics of picosecond ultrashort pulse width, adjustable repetition rate, and high pulse energy, it has more and more extensive applications in biomedicine, optical parametric oscillation, biological microscopic imaging, and other fields, and has gradually become an increasingly important tool in modern biological imaging and analysis systems.

Here is the content list:

l Product introduction of picosecond laser

l Main advantages of picosecond laser

l Application of picosecond laser

Product introduction of picosecond laser

A laser with a pulse width of a picosecond is called a picosecond laser for short.

Now the diode-pumped Nd: YAG using acousto-optic modulation and mode-locking has become a standard light source for producing picosecond pulses. Because the energy of each pulse output from the oscillator is quite low, it is often necessary to amplify it with the regenerative amplifier. In commercially available lasers, the resonator is usually folded several times to shorten the total length of the system. To obtain a short pulse, it is necessary to have a short resonant cavity and a high modulation frequency, and it is necessary to separate a single pulse with a pocket box. The length of the cavity is the compromise between these two requirements.

Main advantages of picosecond laser

The remarkable progress of picosecond laser technology has made it a reliable tool for industrial micro-processing, which could not be completed by other methods before. The picosecond pulse width can be compared with the electro-optical relaxation time, which is short enough to "cold" ablate the material.

Picosecond laser also has many advantages over femtosecond laser with shorter pulse width. Because there is no need to expand and compress the pulse for amplification, the design of a picosecond laser is not so complex, so it is more cost-effective and more reliable. At the same time, the picosecond pulse is still short enough to cope with very precise and stress-free micromachining.

Application of picosecond laser

The picosecond laser has a repetition rate of up to 1000 kHz and does not require complex maintenance, which is particularly important in high-speed, high-precision, and high-throughput material processing applications. Therefore, it has quickly become the first choice for a large number of industrial applications since its inception. All optical components are installed in solid and precision machined single aluminum blocks, which can be used as independent modules for customized solutions. The sealed structure ensures that the laser can operate stably for a long time in the production environment. Hands-free operation design, plus optimized layout, PC-based control, built-in self-diagnosis system, and advanced status report. Excellent beam quality can easily focus the laser beam at different working distances to the minimum spot size so that the laser energy density is large enough to process almost any material.

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