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首页> 外文会议>IEEE International Conference on Photonics >Flexible pulse-width tunable 1.06#x00B5;m pulsed laser source utilizing a FPGA based waveform generator
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Flexible pulse-width tunable 1.06#x00B5;m pulsed laser source utilizing a FPGA based waveform generator

机译：灵活的脉宽可调的1.06µm脉冲激光源，采用基于FPGA的波形发生器

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摘要

This paper describes our 1.06um pulsed laser source which has the capability to generate pulses with tunable durations from picoseconds to nanoseconds. This is made possible through the use of a high speed Field Programmable Gate Array (FPGA) board to generate the required pulses/ any arbitrary waveforms. The FPGA codes are specially designed to generate very fast rise/fall times waveforms with the flexibility to vary both the pulse duration and pulse frequency in real time. These custom defined waveforms are then used to generate high intensity laser pulses when connected to a 1064nm fiber laser source. These tunable pulsed laser sources have potential industrial applications in precision laser micro machining, where the high thermal intensity of the laser pulses can be used to perform ablation, cutting, drilling or annealing of processed materials. Furthermore, by able to tailor the shape of the delivered laser pulses, this will lead to reduction in processing time, improves the efficiency of material removal and the quality of the end product. Our custom board can generate arbitrary tailored pulses as short as 200ps and the longest pulse is 200ns. The pulse repetition rate can be tuned from 20 kHz to 1MHz.
机译：本文介绍了我们的1.06um脉冲激光源，它具有生成可调节持续时间（从皮秒到纳秒）的脉冲的能力。这可以通过使用高速现场可编程门阵列（FPGA）板来生成所需的脉冲/任意波形来实现。 FPGA代码经过专门设计，可生成非常快速的上升/下降时间波形，并具有实时更改脉冲持续时间和脉冲频率的灵活性。当连接到1064nm光纤激光源时，这些定制定义的波形可用于生成高强度激光脉冲。这些可调脉冲激光源在精密激光微加工中具有潜在的工业应用，其中激光脉冲的高热强度可用于执行已加工材料的烧蚀，切割，钻孔或退火。此外，通过能够调整所传递的激光脉冲的形状，这将减少加工时间，提高材料去除效率和最终产品的质量。我们的定制板可以生成短至200ps的任意定制脉冲，最长脉冲为200ns。脉冲重复频率可以从20 kHz调整到1MHz。

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