發(fā)布時(shí)間：2018-06-14 09:21

  本文選題：飛秒加工 + 光纖F-P腔��； 參考：《儀器儀表學(xué)報(bào)》2017年09期

【摘要】：提出了一種飛秒刻寫光纖法布里-珀羅(F-P)腔級(jí)聯(lián)切趾布拉格光纖光柵(FBG)的微結(jié)構(gòu)傳感器并研究了該傳感器的溫度與應(yīng)變傳感特性。該微結(jié)構(gòu)傳感器光譜穩(wěn)定性良好,監(jiān)測(cè)時(shí)長(zhǎng)2 h內(nèi)FBG波長(zhǎng)最大漂移量為0.009 nm,功率最大漂移量為0.015 d B,F-P腔波長(zhǎng)最大漂移量為0.018 nm,功率最大漂移量為0.072 d B。當(dāng)應(yīng)變由0με增至450με再減回0με時(shí),該微傳感器FBG特征峰先右移再左移,波長(zhǎng)變化0.530 4 nm,應(yīng)變靈敏度約1.17 pm/με,線性度高于0.99;光纖F-P腔特征谷波長(zhǎng)變化0.491 1 nm,應(yīng)變靈敏度約1.10 pm/με,線性度高于0.90。當(dāng)溫度由50℃升至200℃再降回50℃時(shí),FBG特征峰先右移再左移,波長(zhǎng)變化約1.418 nm,應(yīng)變靈敏度約10.09 pm/℃,線性度高于0.95;光纖F-P腔特征谷波長(zhǎng)變化約1.578 nm,應(yīng)變靈敏度約10.53 pm/℃,線性度高于0.98。所提出的微結(jié)構(gòu)傳感器是解決單根光纖雙參數(shù)測(cè)量的有效手段,同時(shí)對(duì)復(fù)雜環(huán)境下的多參數(shù)耦合測(cè)量與解耦也具有重要的參考價(jià)值。
[Abstract]:A femtosecond optical fiber Fabri Perot (F-P) cavity cascaded Prague fiber Bragg grating (FBG) sensor is proposed. The sensor's temperature and strain sensing characteristics are studied. The micro structure sensor has good spectral stability. The maximum drift of FBG wavelength is 0.009 nm and the maximum power drift amount is 0.015 D in the monitoring time of 2 h. B, the maximum drift of the wavelength of F-P cavity is 0.018 nm, and the maximum power drift is 0.072 D B.. When the strain is increased from 0 to 450 um to 0 um, the FBG characteristic peak of the micro sensor first moves to the right and then left, the wavelength changes 0.5304 nm, the strain sensitivity is about 1.17 pm/ Mu and the linearity is higher than 0.99; the characteristic Valley wavelength of the optical fiber F-P cavity is 0.4911 nm and strain spirit. When the sensitivity is about 1.10 pm/ um, the linearity is higher than 0.90. when the temperature rises from 50 C to 200 c and then back to 50 C, the characteristic peak of FBG is moved to the right and then left, the wavelength changes about 1.418 nm, the strain sensitivity is about 10.09 pm/ and the linearity is higher than 0.95, the wavelength of the characteristic valley of the optical fiber F-P cavity is about 1.578 nm, the strain sensitivity is about 10.53 pm/, and the linearity is higher than 0.98. The output micro structure sensor is an effective means to solve the double parameter measurement of single fiber. It also has important reference value for multi parameter coupling measurement and decoupling in complex environment.
【作者單位】： 北京信息科技大學(xué);北京信息科技大學(xué)光電信息與儀器北京市工程研究中心;現(xiàn)代測(cè)控技術(shù)教育部重點(diǎn)實(shí)驗(yàn)室;北京信息科技大學(xué)光電測(cè)試技術(shù)北京市重點(diǎn)實(shí)驗(yàn)室;
【基金】：教育部“長(zhǎng)江學(xué)者和創(chuàng)新團(tuán)隊(duì)”發(fā)展計(jì)劃(IRT-16R07) 北京市教委2015年度創(chuàng)新能力提升計(jì)劃(TJSHG201510772016) 光電信息與儀器北京市工程研究中心開(kāi)放課題(GD2016008)項(xiàng)目資助
【分類號(hào)】：TP212

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本文編號(hào)：2016886