In this paper , the technology of making liquid - core optical fiber is introduced . the fundamental principle and measuring methods of raman spectrum of liquid - core optical fiber are discussed . the possibility of combining raman spectrum with liquid - core optical fiber is analyzed as well 本文介绍了液芯光纤封头技术与液芯光纤的制作方法，论述了液芯光纤喇曼光谱的测试原理及测试方法，分析了把液芯光纤的低损耗、高增益、良好稳定性等优点用于光谱技术的可行性，并在实验上验证了这种光纤喇曼联用技术具有可行性。
We presents a detailed studied of the linewidth of parametric light in clbo - opo caused by the linewidth of pumping beam , off axis phase matching , divergence angle of pumping , time above threshold , high gain coefficient of nlo crystal , fluctuate of cavitylength , spontaneous radiation , according to the momentum and energy conversion laws , and the sellmeier equations of the clbo , we calculated curves of the type - i and type - ii compared with the bbo ' s 根据能量动量守恒关系和clbo的色散方程，详细分析了由于泵浦光的线宽、泵浦光偏轴泵浦、泵浦光的发散角、泵浦光功率超过参量光振荡阈值一定倍数、高增益系数、有效腔长波动以及自发辐射引起的参量光线宽，并得到了与bbo晶体在类、类相位匹配下比较的理论曲线。
It is firstly studied the gain - clamped mechanism of erbim - doped fiber amplifier . we find a solution to obtain high gain with large output power over gain - clamped erbium - doped fiber amplifier . then we examine and analyze the relevant factors which affect the characteristics of amplifier 本论文以福建省邮电科学研究所的合作项目为依托，基于对增益箝制机制及掺铒光纤放大器的参数及结构的选择可以影响掺铒光纤放大器性能的认识，围绕高增益、大输出功率的全光增益箝制掺铒光纤放大器进行实验研究。
Smart antenna has been widely researched in communication and signal processing , the adaptive beamforming algorithm is the key technique of smart antenna . it could adaptively steer the array directional pattern to form the main narrow beams with high gain in the direction of the users " signals while deeply nulling the interference signals . it is an effective way to realize the optimal receiving of the interesting signals 智能天线技术是目前通信和信号处理等领域的研究热点，自适应波束形成算法的研究是智能天线的一个关键技术，它能够自适应地控制天线阵方向图在用户信号方向产生高增益窄波束，在干扰信号方向产生较深的零陷，是实现用户信号最佳接收的有效方法。
