Popularization of Laser Knowledge by Han’s Laser: Femtosecond Laser and Sub-nanosecond Laser

Release time:2024.07.09
Laser technology is considered as one of the the Four Great Inventions in the 20th century, which is in parallel with atomic energy, semiconductor and computer. Laser technology has been widely applied in the manufacturing industry, especially in important industries of the national economy such as automobiles, electronics, electrical appliances, aviation, metallurgy, and mechanical manufacturing. Femtosecond and sub-nanosecond lasers are achievements of laser technology, so what are femtosecond and sub-nanosecond lasers? What are the functions? Now let's listen to Han’s Laser Technology Industry Group Co., Ltd. provide you a detailed conclusion.


Femtosecond lasers and sub nanosecond lasers are both types based on laser technology, and they differ in the duration of laser pulses.
A femtosecond laser refers to a laser that operates at the femtosecond level. One femtosecond is equal to 10 to the power of minus 15 seconds (1 fs=10 ^ -15 s). Femtosecond lasers generate high peak power laser pulses in an extremely short amount of time. Due to the extremely short pulse duration, generally between tens to hundreds of femtoseconds, femtosecond lasers can achieve nonlinear optical effects, such as second harmonic generation, optical parameter amplification, etc., and have wide applications in material processing, precision cutting, and fine machining.
A sub-nanosecond laser refers to a laser with a pulse duration in the nanosecond range. One nanosecond is equal to 10 to the negative 9th power of a second (1 ns=10 ^ -9 s). The pulse duration of sub-nanosecond lasers is relatively long, usually between a few nanoseconds to tens of nanoseconds. Sub-nanosecond lasers are commonly used in fields such as material processing, material surface modification, and medical research.
Compared to sub-nanosecond lasers, femtosecond lasers have shorter pulse duration, more concentrated laser energy, higher peak power, and higher optical intensity. This gives femtosecond lasers unique advantages in some applications of nonlinear optical effects. However, with the development of technology, sub-nanosecond lasers have gradually improved pulse stability and energy control, which can meet the needs of many applications.


If you don't know how to choose laser products, you can look for a Chinese domestic brand – Han’s Laser. Han’s Laser Technology Industry Group Co., Ltd. has been deeply involved in the industry for more than 20 years. The company is committed to the research and development, production, and sales of manufacturing equipment and key components, providing high-quality laser products and service experiences that exceed expectations for our partners and customers.
Leave us a message
Contact Us