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Application of short pulse fiber laser

Application of short pulse fiber laser

  • Categories:fiber laser News
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  • Time of issue:2021-05-17 18:41
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(Summary description)Short pulse fiber laser mainly uses rare-earth-doped fiber as the gain medium. The rare-earth ions doped in the more mature active fiber include Er3+, Yb3+, Nd3+, Pr3+, Tm3+, and Ho3+. Short pulse fiber laser is composed of pump source, gain medium and cavity mirror. Among them, the pump light emitted by the LD enters the fiber through the fiber coupler to excite the doped element atoms in the fiber.

Application of short pulse fiber laser

(Summary description)Short pulse fiber laser mainly uses rare-earth-doped fiber as the gain medium. The rare-earth ions doped in the more mature active fiber include Er3+, Yb3+, Nd3+, Pr3+, Tm3+, and Ho3+. Short pulse fiber laser is composed of pump source, gain medium and cavity mirror. Among them, the pump light emitted by the LD enters the fiber through the fiber coupler to excite the doped element atoms in the fiber.

  • Categories:fiber laser News
  • Author:
  • Origin:
  • Time of issue:2021-05-17 18:41
  • Views:
Information

Short pulse fiber laser mainly uses rare-earth-doped fiber as the gain medium. The rare-earth ions doped in the more mature active fiber include Er3+, Yb3+, Nd3+, Pr3+, Tm3+, and Ho3+. Short pulse fiber laser is composed of pump source, gain medium and cavity mirror. Among them, the pump light emitted by the LD enters the fiber through the fiber coupler to excite the doped element atoms in the fiber.

Short pulse fiber laser components

Application of short pulse fiber laser


1. Femtosecond laser fine material processing

Femtosecond laser has ultra-short pulse width (10s), high peak power (up to 10w) and power density (10w/cm), ultra-fine processing is an important application field of short pulse fiber laser of femtosecond laser technology.

After the development of this application, there have been many important advances. Femtosecond laser ultra-fine processing is closely related to advanced manufacturing technology, and it can play a more direct role in promoting the development of certain key industrial production technologies. Compared with traditional short pulse fiber lasers for processing, such as carbon dioxide lasers, Qin Yi aluminum garnets and other lasers, the heat-affected area generated by femtosecond laser processing is very small, and higher processing accuracy can be obtained. Generally speaking, according to the laser pulse standard, a laser pulse with a duration longer than picoseconds (equivalent to heat conduction time) is a long pulse. When it is used to process materials, the surrounding materials will change due to thermal effects, which affects the processing accuracy.

2. Optical coherence tomography technology

Optical coherence tomography is an imaging technology that has developed rapidly in the past decade. It uses the basic principles of weak coherent light interferometers to detect the back reflection or back reflection of incident weak coherent light at different depth levels of biological tissues or patient parts. After several scatter signals, through scanning, two-dimensional or three-dimensional structure images of biological tissues can be obtained.

3. Terahertz wave generation technology

Terahertz waves refer to electromagnetic waves with a frequency in the range of 0.1-10THz (1THz-10Hz). Its waveband is between millimeter waves and far-infrared light (30um-3mm). It is photonics and electronics technology, macro and micro Transition zone.

The above are the main application areas of Short pulse fiber laser, I hope it will be helpful to you.

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