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光纤方法
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    The Raman spectra of CCl_4 in CS_2 and C_6H_5Br are measured by the liquid-core optical fiber, and the measurement accuracy is increased. The experimental results show that as concentration becomes lower, the intensity of the 459 cm~ -1 , 314 cm~ -1 , 218 cm~ -1 Raman lines of CCl_4 is enhanced. The solvent effect is tested and verified accurately.
    本文用液芯光纤方法测量了CCl4 在CS2 和C6H5Br中不同浓度下459 cm-1,314 cm-1和218 cm-1的拉曼光谱强度,验证了一些溶剂使某些分子拉曼光谱增强的溶剂效应.
短句来源
    Equivalent Step-Index-Fiber Method for Multicladding Fibers
    多包层光纤中的等效阶跃光纤方法
短句来源
    Effect of solvent on Raman spectrum intensity by means of liquid-core optical fiber
    液芯光纤方法研究溶剂对分子拉曼光谱强度的影响
短句来源
    In this paper, an Equivalent Step-Index-Fiber Method(ESFM)has been extended to multicladding fibers.
    本文将等效阶跃光纤方法(ESFM)推广到多包层光纤.
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  fiber method
The second method is called the Long Fiber Method.
      
It is based on the equivalent step-index-fiber method.
      
Chirped fiber Bragg gratings with arbitrary group delay responses using stepped-stretching fiber method
      
Seed CWP was determined by the Uppsala total dietary fiber method to quantify monosaccharides of CWP in 14 soybean genotypes from Maturity Groups 00 to I grown at four Minnesota locations.
      
Determination of thorium isotopes in seawater by moored MnO2-fiber method
      
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In this paper, an Equivalent Step-Index-Fiber Method(ESFM)has been extended to multicladding fibers. Upon defining the refractive index profile for the multicladding preform, the equivalent normalized index difference for the equivalent step-index-fiber of the preform can be exactly derived by the method so that varieties of transmission parameters for the fiber drawn from the preform would be predicted conveniently. Meanwhile, cutoff wavelengths of double-cladding elliptical fibers have been calculated as an...

In this paper, an Equivalent Step-Index-Fiber Method(ESFM)has been extended to multicladding fibers. Upon defining the refractive index profile for the multicladding preform, the equivalent normalized index difference for the equivalent step-index-fiber of the preform can be exactly derived by the method so that varieties of transmission parameters for the fiber drawn from the preform would be predicted conveniently. Meanwhile, cutoff wavelengths of double-cladding elliptical fibers have been calculated as an example for part confirmation. Comparision between the theory and results from the experiment fibers, except individual cases,shows an accuracy of 5% in predicted cutoff wavelengths.

本文将等效阶跃光纤方法(ESFM)推广到多包层光纤.当已知多包层坯棒折射率分布,则利用这种方法可严格计算出该坯棒的等效阶跃光纤的等效折射率差,从而可方便地估算出该坯棒拉制出光纤的各种传输参数.文中以计算双包层椭圆光纤的截止波长为例作为部分验证.理论计算和实际测量的结果表明,除个别情况外,精度达到5%.因而,在工程上解决了为确定多包层光纤的截止波长(或拉丝半径),而必须进行重复凑试拉丝和测量的困难,大大节省了时间、精力和材料.

The method of embedding optical fibers into smart composite material the principle ofarrangement of optical fiber the difficult of embedding fibers the lead-out method of embedded fibersand the protection of embedded potical fibers are presented in this paper.

介绍了在复合材料内埋置光纤的方法、光纤布局原则、埋置光纤存在的主要问题、光纤的引出及光纤的保护方法等。

The amplification of a dual wavelength F-P cavity fiber laser's output is reported in thispaper. Connected to a piece of erbium doped fiber, each output power of the two ports is up to-1. 60dBm and - 6- 64dBm respectively. Their gains are 6dB and 0. 62dB. Their SNR's are 45dB and40dB. The method can be used to promote the output power of the light source in the all-fiber WDMsystem. What is more ,the pump laser's energy is utilized fully.

本文报道了利用在腔外附加掺何光纤的方法放大双波长F-P腔掺辉光纤激光器的输出功率,使其输出功率分别达到-1.60dBm和-6.64dBm,增益分别为6dB和0.62dB,信噪比分别为45dB和40dB.这种方法可以用于在全光纤波分复用通信系统中提高光源的输出功率,特别是使泵浦源的能量得到了充分利用.

 
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