the fiber laser optical power

Currently, the technique is called multi-mode parallel cladding pump technology (Cladding pumped technology), France Keopsys company in the form of a patented technology, called "V-Groove Technologe". Multi-mode parallel technical characteristics of cladding-pumped fiber laser determines the class are the following outstanding performance. A multimode pump diode module group can be radiated out 100 watts of optical power, a number of multimode pump diode parallel set, you can allow the design of high power output of the fiber laser. This high-power wide-area multimode diodes at high temperatures, only a simple air-cooled, low cost. High-power fiber lasers in the activity of the erbium doped cladding / Yb rare earth elements, and because there is a wide flat light absorption region (930-970nm), so, without any type of pump diode wavelength stabilization device. Many times over single-mode pump light across the core, so its high utilization rate. Compared to single-mode diode-pumped multimode pump diode to its stability will be much higher. The geometry of the surface makes a wide cross-section of the fiber laser optical power density is very low and the current density through the active surface is also very low. The maximum output of laser pointer should be stated clearly.
As a result, its reliable operation of the pump diode lifetime over 1 million hours. Cladding-pumped devices currently implement the technology can be summed up into single-ended linear cavity pumped, linear cavity dual end-pumped, all-double-clad ring cavity device three categories, with different characteristics can be double-clad control of the three basic types of development to be. OFC'2002 literature of a cavity using the structure shown in Figure 2, to achieve the output power of 3.8W, the threshold value of 1.7W, up to 85% slope efficiency of new cladding-pumped devices [1]. In product technology, the United States IPG's meteoric rise, has developed a 700W ytterbium-doped double-clad fiber laser, and declared that it would launch 2000W fiber laser. Raman optical amplification technology provides a new long-distance transmission power budget of the means of access has become the focus.