The Five Key Technologies Of The Fiber Laser

Special fiber-optic technology
All-fiber lasers need to use double-clad active fiber, double clad photosensitive fiber, energy transmission fiber and a variety of specialty optical fiber, with the continuous improvement of output power, more and more to the technical requirements of the special fiber, therefore, specialthe development of the fiber will play an important role in the development of fiber lasers. Photonic crystal fiber as the representative of a new generation of special optical fiber will be gradually applied in the development of fiber lasers. Development of special optical fiber, the gain will make the active fiber optic, bear the greater power density, the absorption of the pump light is more effective; will allow the grating make it easier, better stability of the grating, the grating in the optical fiber the more extensive the use of lasers; will enable energy transmission fiber can transmit higher power, high-power laser can transmit longer distances can be transmitted in the wavelength range is expanding; will pump coupling is more easily achieved, can withstand higher pump power and, the loss is smaller.Visible Fiber Laser
Cladding pump coupling technique
All-fiber laser cladding pumped coupling technique for determining fiber laser performance and level of an invaluable role. Optical fiber for high-power all-fiber lasers pumped coupled devices and fiber optic power synthesis devices are used in high power conditions, the coupling efficiency must be high, the loss must be very small, a great power must bear, and the input light of the large ones also need as much as possible. So many extreme conditions, the production quality pump coupling device and the power combiner device to a high degree of difficulty, but a variety of ways and means to achieve this is a challenging technology. Requirements of the pump coupling device from the trend of the development of high-power fiber lasers, the pump light coupled into the inner cladding, with minimal impact and damage to the core of the double-clad fiber, because the only way to not affect the cascade pump, signal generation and transmission of the laser to achieve ultra-high power output. This paper argues that the development of pump coupling technology with minimal impact on the core is the development direction of the pump coupling device. For fiber optic power combining devices, the pursuit of the goal is to continually improve the synthesis of optical power.
Fiber grating technology
Fiber Bragg grating all-fiber laser, the current role of the reflective core of the signal laser resonant cavity is formed, However, with the further development of fiber lasers, fiber Bragg grating in the fiber laser will be new uses, thus the fiber gratingproduction technology present new challenges, one of the noteworthy direction is to produce high quality large core diameter multimode fiber fiber grating.
Diode-pumped laser technology
Diode-pumped lasers are key components in fiber laser, fiber laser reliability, longevity and production costs is essential to develop a single wide light-emitting head of life pumped semiconductor laser has become one of the fiber laser diode-pumped laserkinds of trends, and constantly improve a single laser output power, continue to reduce costs and further improve the reliability is the key, in which improvement and innovation package structure should be the core work, also high because the proportion of packaging costs.
Fiber laser machine technology
All-fiber laser machine design and production knowledge, content, technology, technology, experience and KnowHow more all-fiber laser design and making the most of the core, the most critical technology, especially in new high-power fiber lasers the history of the development is still quite short today, there are a lot of pioneering work to be done. Machine design and production of fiber lasers requires not only the rational design of application-oriented, but also shoulder the whole structure and program improvement and innovation in the important task of shouldering the important parts and critical technology improvement and innovation in the important task. Worldwide design and production of fiber-optic laser machine manufacturers are a lot of investment in innovation.
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