The pressure responses of polymer packaged fiber Bragg grating sensor are analyzed, a special kind of pressure-resistant polymer is used to coat FBG in a metal tube. A kind of soft elastic material is used to reduce the friction between tube and polymer, and to eliminate chirp effect caused by different friction distribution to improve the pressure response of FBG.

分析了聚合物封裝光纖光柵的壓力響應(yīng)特性国产一区二区视频免费看，通過采用特殊聚合物材料將光纖光柵封裝于金屬套管中亚洲国产区中文在线观看www，并通過在金屬套管預(yù)涂覆一層軟彈性材料中文无码视频t，以消除封裝過程中由于聚合物固化收縮以及聚合物與套管壁粘接與摩擦產(chǎn)生的光纖光柵啁啾化自拍偷拍精品视频网，改善了光纖光柵壓力響應(yīng)特性羞羞漫画www。

The temperature response and sensitivity enhancing technology concerning fiber Bragg gratingis analyzed.A special kind of heat-resistant polymer is used to coat FBG to enhance the temperature sensitivity of FBG sensor.The polymer coating and solidifying process of FBG is improved.A kind of heat-conducted adhesive is used to reduce the friction between tube and polymer,and eliminate the chirp effect of FBG caused by the asymmetric shrinkage of polymer during the package process.The experimental results show that the FBG sensor can measure temperature from 20℃to 180℃.

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The effects of gain narrowing and high order dispersions on the pulse duration in our kilohertz chirped-pulse amplification system have been compensated experimentally.

本文在實驗上研究了千赫茲啁啾脈沖放大激光系統(tǒng)中增益窄化效應(yīng)和剩余高階色散的預(yù)補償理论午夜网站。

And, the α parameters of frequency chirping of the cutoff intensity modulator are given at first. The cutoff conditions of metal-clad strip or rib waveguides are analyzed by modifying dual effective index method and simple effective index method, respectively.

在理論上，詳細論述了截止型強度調(diào)制器的工作機理韩国黄色AV网站久久久，結(jié)合耦合模理論97婷婷国产在线综合视频，用近似方法對截止型強度調(diào)制器的調(diào)制特性進行理論模擬，模擬結(jié)果與實驗結(jié)果的變化規(guī)律基本相符合一级成熟人视频录像免费看；并首次給出截止型單波導(dǎo)強度調(diào)制器頻率啁啾α因子的模擬結(jié)果欧美黄色视频免费体验。

The chirp parameter of modulators is an important index of performance evaluation in fiber-optic communicalion system.

在光纖通信系統(tǒng)中，調(diào)制器的啁啾參數(shù)是衡量調(diào)制器性能的重要參數(shù)之一都在搜av免费观看。

Soliton interaction with chirp from optical source in nonlinear monomode optical fibers is studied numerically by using slit-step Fourier transform method in detail.

本文采用分步傅氏變換法對非線性單模光纖中源啁啾孤子相互作用進行了詳細的數(shù)值研究国产午夜亚洲精品区。

Compare with tunable filter detection technique, the wavelength measurement technique using tunable source is analyzed theoretically. We design a kind of all-fiber sensing interrogation system, by using long-period fiber grating as edge filter to interrogate the sensing signal of the FBG sensor. The wavelength resolution of the sensing measurement is 0.05nm.A novel FBG Bourdon tube sensor has been constructed, utilizing the pressure mechanic amplify function of Bourdon tube. The measured pressure sensitivity is two orders of magnitude higher than a simple monomode fiber with an in-fiber grating. Especially the pressure sensitivity of the sensor can be determined by changing the parameters of the cantilever beam. Adopting polymer package technique, we coat fiber Bragg grating by using polymer with different mechanic properties.

利用波登管對于壓力的機械放大作用，研制了一種新穎的光纖光柵波登管壓力傳感器毛片视频一区，將FBG的壓力靈敏度提高了兩個數(shù)量級男女gif出入抽搐动态图，特別是這一傳感器的壓力靈敏度的大小可以通過改變懸臂梁自身的參數(shù)靈活控制；采用聚合物封裝技術(shù)，將FBG封裝于具有不同力學(xué)特性的有機聚合物基底中在线免费观看搞黄网站，利用基底的帶動作用色本土激情自拍，將FBG對壓力的靈敏度分別提高了20倍和31.7倍，由于我們采用了特殊的工藝好男人影视在线www官网免费，封裝后的FBG不出現(xiàn)任何光柵啁啾精品在线观看地址；在成功封裝的基礎(chǔ)上對封裝光柵的蠕變效應(yīng)、FBG與封裝材料之間的防滑處理等進行了實驗研究手机版三级片上传视频；設(shè)計了外加圓柱形鋁管的聚合物封裝光纖光柵色五月婷婷欧美在线，將FBG的壓力靈敏度提高了1430倍，可用于對微小壓力變化的精確測量三级片毛片免费。

The shiftings of the carrier envelope phase on the axis and on the radial direction are studied by adopting the simulation methods.

在啁啾脈沖光束譜寬相等的條件下欧美韩日一区二区特黄，采用數(shù)值方法，分別研究了其載波相位在傳播方向與徑向上的漂移情況欧美中文字幕伦交视频。

Spectral shaping in high-power Nd:Glass chirped pulse amplification system.

高功率釹玻璃啁啾脈沖放大系統(tǒng)光譜整形最新亚洲第一页。

Multilayer dielectric thin film reflector for spectrum reshaping of chirped pulse la ser in Nd :glass chirped pulse amplification system.

用于釹玻璃啁啾脈沖放大系統(tǒng)光譜整形的多層介質(zhì)膜反射鏡。