Dispersion compensation (pulse broadening/compression) using large chirped fiber Bragg grating is one of the key technologies in ultrafast laser field, which has become an important application direction of large chirped fiber Bragg grating. Raysung can customize CFBGS with various dispersion levels to meet the needs of ultrafast lasers.
Raysung’s ultrafast laser components can achieve high performance broadening, and achieve the ultimate in cost control. Can be customized according to customer requirements, meet the needs of high-performance picosecond laser femtosecond laser, to achieve the perfect unity of performance and cost.
It is specially designed for femtosecond pulse compression. In the CPA system of femtosecond fiber laser, VBG can be used to compress the broadened and enlarged pulse, which can achieve high quality ultra-short pulse compression
Providing various services like Metallization, Anti-reflection (AR) coating, Lensed fiber assembly and FBG+LENS Turn-key solutions.
The fiber lens is used to couple light from the laser diode, and with good matching between the divergence of laser chip and fiber lens, coupling efficiency as high as 90% could be achieved. The FBG is used to form an external feedback structure, which will stabilize the output laser around the center wavelength of the FBG, and meanwhile narrow the laser output spectrum. Besides, due to the low thermal dependence of FBG, the thermal stability of the laser output is also greatly improved. Therefore, high pumping efficiency as well as good pumping stability of the pump laser could be achieved.
Raysung is one of the only manufacturers in the world who have the capacity to manufacture the type of optical fiber which incorporates FBG and lensed fiber. The minimum distance between the lensed fiber and FBG can be controlled within 1.5mm. This type of fiber can be used as cavity resonator in the application of fiber laser and also stabilizator for pump laser.
