Cleaving parameters studies on glass fibers laser cutting

Since the amount of data storage has kept growing, the transmitting rate of interface between data storages should be kept growing as well and the capacity of fiber-optic communication with single mode fiber become insufficient. Therefore, the multi-mode fiber which has much larger core diameter has been widely used in high data traffic application. The quality of end surface of fiber dominates the data transmitting efficiency. But the quality of cutting end surface which cut by the traditional mechanical fiber cleaving method was not good enough for the requirement of multi-mode fiber. In the recent year, the pulse CO2 laser was introduced to cleave the fibers. The optical system setup, laser pulse parameters, such as laser pulse energy, pulse width and number of laser pulse, will affect the quality of end surface of fiber. In this paper, the pulse CO2 laser fiber cleaving technology will be developed and the experimental setup will be introduced. And the relationships between the quality of cutting end surface and the cleaving parameters will be studied. The optimal laser control parameter set for fiber cleaving will be discussed as well.