江蘇Avesta 超快激光器銷售歡迎咨詢邁岐光電科技供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="如何選擇脈沖選擇器1.色散(特別是對(duì)于脈寬"><meta name="keywords" content="江蘇Avesta 超快激光器銷售,Avesta"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> <script>var V_PATH="/";window.onerror=function(){ return 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class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>江蘇Avesta 超快激光器銷售,Avesta</p><p><span>***更新：</span>2020-12-28 06:12:38</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="pt79232" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">邁岐光電科技（上海）有限公司</a></p><p><span>聯(lián)系人：</span>楊宸</p><p><span>郵箱: </span>1362372527@qq.com</p><p><span>電話: </span>13916047268</p><p><span>傳真: </span>021_64903967</p><p><span>網(wǎng)址: </span>http://www.combiner.com.cn</p><p><span>手機(jī): </span>021-64903967</p><p><span>地址: </span>鶴慶路398號(hào)41幢1層B1055室</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="yhjbdkr" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="kyfhj3u" class="box"><p><p style="text-indent:25px">如何選擇脈沖選擇器 1. 色散(特別是對(duì)于脈寬<<100fs的寬帶脈沖) 介質(zhì)性質(zhì)決定了在不同波長(zhǎng)下光速是不同的，輸入的光譜越寬，江蘇Avesta 超快激光器銷售，脈沖的色散效應(yīng)越高。這種效應(yīng)在高折射率晶體中更為敏感，比如Teo2比熔石英更為明顯。 2. 有效通光孔徑的大小為了獲得較好的效果，江蘇Avesta 超快激光器銷售，激光束需要和有效孔徑匹配，有效孔徑與脈沖上升下降時(shí)間有關(guān)，這與聲光效應(yīng)的原理有光。 3，江蘇Avesta 超快激光器銷售. 外部尺寸/散熱由于脈沖選擇器的占空比通常很低（<< 1％ON），因此AOM內(nèi)部的平均RF功率很低，因此我們可以擁有基于TeO2或基于熔融硅的高效率的風(fēng)冷脈沖選擇器；然而，由于SiO2材料的細(xì)度低，所需的RF峰值功率將比TeO2高得多。 4. 一般材料的損傷閾值選擇TeO2脈沖選擇器是因?yàn)樗哂休^低的驅(qū)動(dòng)射頻功率，而選擇SiO2脈沖選擇器是因?yàn)槠涓叩膿p傷閾值。飛秒激光具有非常高的瞬時(shí)功率，可以達(dá)到百萬億瓦。江蘇Avesta 超快激光器銷售</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇Avesta 超快激光器銷售,Avesta" src="https://tyunfile.71360.com/UploadFile/maiqiguangdian/637336060158945312/8285666.png"></div><p style="text-indent:25px">光纖激光器的較大優(yōu)點(diǎn)是小型化、封閉式及無水冷。如果反過來做成空間式的，那就只有效率高這樣的優(yōu)點(diǎn)，穩(wěn)定性甚至不如固體激光器。因此，作為放大器的種子光源以及對(duì)小能量應(yīng)用（脈沖能量小于1mJ，例如光波導(dǎo)的刻劃、THz波的產(chǎn)生、精密時(shí)頻傳輸、糾纏光子對(duì)的產(chǎn)生、泵浦探針測(cè)量等），普通單模光纖飛秒激光器以及普通大模場(chǎng)面積光纖飛秒放大器依然發(fā)揮著不可取代的作用。在光纖激光器的研究中，仍然把普通單模光纖激光器作為主要研究方向。其主要的光纖激光器創(chuàng)新理論和實(shí)驗(yàn)，都是在普通單模光纖激光器中完成的。江蘇Avesta 超快激光器銷售超快激光器通常指用于發(fā)射超短脈沖的鎖模激光器。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇Avesta 超快激光器銷售,Avesta" src="https://tyunfile.71360.com/UploadFile/maiqiguangdian/637336060860722656/7155052.png"></div><p style="text-indent:25px">飛秒激光器以其獨(dú)特的超短持續(xù)時(shí)間和超強(qiáng)峰值功率開創(chuàng)了材料超精細(xì)、低損傷和空間三維加工處理的新領(lǐng)域，而且應(yīng)用越來越普遍。對(duì)透明材料的加工應(yīng)用：在透明材料中的應(yīng)用主要指制造光纖通信器件。用飛秒激光器可以在工件內(nèi)部進(jìn)行加工，而且不損傷材料表面，因此可以通過改變晶體的折射率，實(shí)現(xiàn)透明晶體內(nèi)部形成光波導(dǎo)或在光纖內(nèi)實(shí)現(xiàn)折射，并且可以實(shí)現(xiàn)三維激光存儲(chǔ)。此外還可以對(duì)光子晶體、藍(lán)寶石、金剛石、水晶等進(jìn)行加工制作。對(duì)一般金屬來說，由于具有很高的熱導(dǎo)性和較高的熔點(diǎn)溫度，在其表面實(shí)現(xiàn)高精度和高質(zhì)量的鉆孔和切割有很大的困難。用飛秒激光器切割，切縫的邊緣整齊，金屬表面沒有材料熔化的痕跡。飛秒激光精密成形技術(shù)已在汽車發(fā)動(dòng)機(jī)噴油嘴的成形生產(chǎn)中得到了應(yīng)用，用飛秒激光精密成形微孔技術(shù)已替代了原先電火花加工工藝，孔的清潔度得到有效提高。對(duì)非金屬材料的加工應(yīng)用。</p><p style="text-indent:25px">飛秒激光器是僅以千兆分之一秒左右的超短時(shí)間放光的“超短脈沖光”發(fā)生裝置。是一種可以滿足顧客需求的系統(tǒng)，飛秒激光器可工作于十分惡劣的工作環(huán)境。　飛秒激光器是僅以千兆分之一秒左右的超短時(shí)間放光的“超短脈沖光”發(fā)生裝置。飛是國(guó)際單位制詞頭飛托的縮寫，1飛秒=1×10-15 秒。所謂脈沖光是僅在一瞬間放光。照相機(jī)的閃光的發(fā)光時(shí)間是1微秒左右(即百萬分之一秒)，所以飛秒的超短脈沖光只有其10億分之一左右的時(shí)間放光。眾所周知，光速是以30萬千米每秒(1秒間繞地球7周半)無與倫比快的速度飛馳而過，但是在1飛秒期間連光也只不過前進(jìn)了0.3微米。飛秒激光加工通過聚光透鏡的聚光點(diǎn)產(chǎn)生多光子吸收，從而實(shí)現(xiàn)對(duì)材料內(nèi)部的加工。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇Avesta 超快激光器銷售,Avesta" src="https://tyunfile.71360.com/UploadFile/maiqiguangdian/637336060618593750/7434954.png"></div><p style="text-indent:25px">如何選擇脈沖選擇器考慮的主要指標(biāo)有以下幾點(diǎn)： 1. 開關(guān)時(shí)間（特別是對(duì)于高輸入脈沖重復(fù)率的光源）或上升/下降時(shí)間對(duì)于基于AOM脈沖選擇器，上升/下降時(shí)間與聲光調(diào)制器的孔徑有關(guān)。我們定義上升/下降時(shí)間指的是傳遞時(shí)間曲線10%-90%經(jīng)歷部分。如果要得到快速的上升/下降的時(shí)間，光束直徑在AOM內(nèi)被聚焦到10um以下。 2. 開關(guān)的至大重復(fù)率對(duì)于AOM來說，這個(gè)參數(shù)和上升下降時(shí)間直接相關(guān)，然而AOM內(nèi)部的平均射頻功率也是另一個(gè)限制，高重復(fù)率將引起AOM過熱而不得不使用水冷系統(tǒng)。飛秒激光器要產(chǎn)生激光，必須實(shí)現(xiàn)粒子數(shù)反轉(zhuǎn)分布。江蘇Avesta 超快激光器銷售</p><p style="text-indent:25px">飛秒激光器主要特點(diǎn)是結(jié)構(gòu)緊湊，小巧，高效率，低損耗，負(fù)色散和全光學(xué)。江蘇Avesta 超快激光器銷售</p><p style="text-indent:25px">　粒子數(shù)反轉(zhuǎn)分布是產(chǎn)生激光的一個(gè)必要條件，而要實(shí)現(xiàn)粒子數(shù)反轉(zhuǎn)分布和產(chǎn)生激光還必須滿足三個(gè)條件：　?、僖心苄纬闪Ｗ訑?shù)反轉(zhuǎn)分布的物質(zhì)，即激活介質(zhì)(這類物質(zhì)具有合適的能級(jí)結(jié)構(gòu)); 　?、谝斜匾哪芰枯斎胂到y(tǒng)給激活介質(zhì)能量，使盡可能多的原子吸收能量后躍遷到高能態(tài)以實(shí)現(xiàn)粒子數(shù)反轉(zhuǎn)，這一系統(tǒng)稱作激勵(lì)能源(或泵浦源); 　　③要有光的正反饋系統(tǒng)——光學(xué)諧振腔，當(dāng)一定頻率的光輻射通過粒子數(shù)反轉(zhuǎn)分布的激活介質(zhì)時(shí)，受激輻射的光子數(shù)多于受激吸收的光子數(shù)可使光輻射得到放大，要使這種光放大并且以一個(gè)副長(zhǎng)光子感應(yīng)產(chǎn)生一個(gè)受激發(fā)射光子的單次過程為主，還能形成高單色性高方向性高相干性和高亮度性的光放大，必須使用光學(xué)諧振腔。　　因此，常用飛秒激光器由三部分組成：激活介質(zhì)、激勵(lì)能源、光學(xué)諧振腔。江蘇Avesta 超快激光器銷售</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2597143.html</p></div></div></div></div></div><div id="kt89oac" class="page-right twoColRt"><div id="tdkc3h3" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8tfmoqc" 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