與普通光源相比，激光具備高亮度、高方向性等優(yōu)異特性，已經(jīng)成為一種新的技術(shù)和手段，廣泛應(yīng)用到通信、工業(yè)加工、軍事武器、醫(yī)療等諸多領(lǐng)域。
Compared with ordinary light, laser has excellent properties such as high brightness, high directivity, and has become a kind of new technology and method, widely used in communications, industrial processing, military weapons, medical, and many other fields.
激光器是產(chǎn)生、輸出激光的裝置，按照激光工作物質(zhì)類(lèi)別的不同，可將激光器分為氣體激光器、液體激光器、固體激光器、半導(dǎo)體激光器等；按照波長(zhǎng)的不同，一般可以將分為紅外激光器、可見(jiàn)光激光器和紫外激光器；按照脈沖寬度的不同，可分為毫秒激光器（10-3秒）、微秒激光器（10-6秒）、納秒激光器（10-9秒）、皮秒激光器（10-12秒）、飛秒激光器（10-15秒）；按照輸出功率的不同，可分為高功率激光器（1000W以上）、中功率激光器（100W-1000W）、低功率激光器（100W以下）等。
Laser is generated, the output of the laser device, according to the type of the laser work material is different, the laser can be divided into gas laser, liquid laser, solid laser, semiconductor laser, etc.; According to the different wavelength, it can be divided into infrared laser, visible laser and ultraviolet laser. In accordance with the pulse width is different, can be divided into millisecond laser (10-3 seconds), millisecond laser (10 to 6 seconds), nanosecond laser (10 to 9 seconds), picosecond laser (10-12 seconds), femtosecond lasers (10 to 15 seconds); According to the different output power, it can be divided into high power laser (over 1000W), medium power laser (100w-1000w), low-power laser (below 100W), etc.
以皮秒與飛秒激光器為代表的超快激光器具有極短的激光脈沖（脈沖持續(xù)時(shí)間只有幾個(gè)皮秒或飛秒）和極高的峰值功率的特點(diǎn)，用于材料加工具有獨(dú)特的超精細(xì)、無(wú)熱影響等優(yōu)異性能。
Represented by picosecond and femtosecond laser ultrafast laser has a very short laser pulse (only a few picosecond and femtosecond pulse duration) and the characteristics of high peak power, used for processing materials, has a unique ultra-fine, no heat affected such as the excellent performance.
Processing "hyperfine" - ultrafast laser can focus to ultrafine space area, at the same time has a very high peak power and a short laser pulse, when processing section and tidy, thermal diffusion, micro cracks and metallurgical defects, processing process will not affect the space around the range of materials involved, to do the hyperfine processing.
加工的“超精細(xì)”--超快激光能夠聚焦到超細(xì)微空間區(qū)域，同時(shí)具有極高峰值功率和極短的激光脈沖，加工時(shí)切面整齊、無(wú)熱擴(kuò)散、無(wú)微裂紋及冶金缺陷，加工過(guò)程中不會(huì)對(duì)所涉及的空間范圍的周?chē)牧显斐捎绊?，從而做到了加工的超精?xì)。
The thermal process will play a major role in the processing of the "no thermal impact" -- the traditional laser with the pulse duration greater than 10ps and the effect of the material. Pulse duration less than 10 ps ultrafast laser, because only picosecond and femtosecond pulse duration magnitude, is far less than the material in the excited electron transfer by energy release in the form of time, energy to release the pulse has ended, and avoid the energy transfer, transformation and the existence of the heat and thermal diffusion, to realize the true sense of the word "cold" laser processing.
加工的“無(wú)熱影響”--脈沖持續(xù)時(shí)間大于10ps的傳統(tǒng)激光，與材料作用時(shí)，熱過(guò)程將起到主要作用。脈沖持續(xù)時(shí)間小于10ps的超快激光，由于脈沖持續(xù)時(shí)間只有皮秒、飛秒量級(jí)，遠(yuǎn)小于材料中受激電子通過(guò)轉(zhuǎn)移轉(zhuǎn)化等形式的能量釋放時(shí)間，能量來(lái)不及釋放該脈沖已經(jīng)結(jié)束，避免了能量的轉(zhuǎn)移，轉(zhuǎn)化以及熱量的存在和熱擴(kuò)散，實(shí)現(xiàn)了真正意義上的激光“冷”加工。
Ultrafast laser has a very wide range of industrial applications, with new shows, biological, medical, consumer electronics, 3 d printing, high-end equipment, such as the development of new applications, for laser machining precision demand is higher and higher, ultrafast laser has become an important direction of precision machining. Laser enterprises at home and abroad have laid out the laser/ultra fast laser equipment market. In the core ultra-fast laser market, it is currently dominated by foreign companies, which are represented by the company, such as coherent, spectral physics, fast, NKT, EKSPLA,
超快激光的工業(yè)應(yīng)用非常廣泛，隨著消費(fèi)電子、新型顯示、生物醫(yī)療、3D打印、高端裝備等新應(yīng)用的發(fā)展，對(duì)于激光加工精細(xì)度要求越來(lái)越高，超快激光已經(jīng)成為精密加工的重要方向。國(guó)內(nèi)外激光企業(yè)紛紛布局激光器/超快激光設(shè)備市場(chǎng)。在核心超快激光器市場(chǎng)，目前基本上是外國(guó)公司占主導(dǎo)，以相干，光譜物理、通快、NKT、EKSPLA、Lihgt Conwersion、lumentum、EdgeWave、AMPlitude等公司為代表。大族激光、華日激光、安揚(yáng)激光、虹拓新科技、盛雄激光、貝林激光、卓鐳激光等國(guó)內(nèi)企業(yè)正大力推進(jìn)技術(shù)產(chǎn)業(yè)化，在超快激光設(shè)備、激光精密加工、激光器技術(shù)的研發(fā)、技術(shù)應(yīng)用和產(chǎn)品生產(chǎn)等產(chǎn)業(yè)環(huán)節(jié)取得快速發(fā)展。
Conwersion, lumentum, EdgeWave, etc. Ethnic group, China laser, AnYang laser, extension of new technology, ChengXiong laser rainbow, behring, zhuo laser laser and other domestic enterprises are vigorously promoting technology industrialization, the ultrafast laser equipment, laser precision machining, laser technology research and development, technology application and product production industries such as link achieved rapid development.
【此文章原創(chuàng)來(lái)自于158機(jī)床網(wǎng)轉(zhuǎn)載請(qǐng)注明出處】
