Study of measuring polarization state in optical fiber 光纖偏振態(tài)檢測(cè)方法的研究
Polarization state of linear polarized light at an angle of incidence 線偏振光電矢量與入射面有夾角入射時(shí)的偏振態(tài)
The purpose of this paper is to improve the received signal by study of the polarization character of target in snow clutter and finding the optimum polarization states of antennas 運(yùn)用拉格朗日乘子法求出了收發(fā)天線的最佳極化方式以增強(qiáng)信號(hào)抑制雜波干擾。
It is also discussed how to get the optimum polarization state of the antenna when the scr is optimum . not only the power of cylinder in air but in rain are used in calculating the scr 對(duì)于非相干目標(biāo),文章用kennaugh矩陣得到接收功率,然后用拉各朗日乘子法求出最佳極化狀態(tài)和最優(yōu)接收功率。
The common are quarter - wave plate and half - wave plate . fitted with other polarimetric elements , they can realize converting and rotating of polarization states , and modifying of all kinds of light wave 光相位延遲器同其他偏光器件相配合,可以實(shí)現(xiàn)光的各種偏振態(tài)之間的相互轉(zhuǎn)換、偏振面的旋轉(zhuǎn)以及各類光波的調(diào)制。
This equation can completely describe light pulse transmission actions under numerous circumstances including the fiber dispersidi , attenuation and nonlinearity , and even the polarization state of light 該方程描述了光脈沖在wdm光纖系統(tǒng)中的傳輸行為,包含了在光纖色散、損耗、非線性效應(yīng)影響下含有不同偏振態(tài)的光信號(hào)傳輸情況。
This equation can completely describe light pulse transmission actions under numerous circumstances including the fiber dispersion , attenuation and nonlinearity , and even the polarization state of light 該方程描述了光脈沖在wdm光纖系統(tǒng)中的傳輸行為,包含了在光纖色散、損耗、非線性效應(yīng)影響下含有不同偏振態(tài)的光信號(hào)傳輸情況。
The optical system is established , in which the change of polarization state for magneto - optic crystal can be measured in continuous adjustable magnetic field ( 0 s1 . 5 t ) , and the method to improve test system is given 摘要搭建了磁光晶體的磁致偏振特性測(cè)試系統(tǒng),此系統(tǒng)可在連續(xù)可調(diào)磁場(chǎng)下( 0 ~ 1 . 5t )對(duì)磁光晶體的磁致偏振特性進(jìn)行測(cè)試。
And it should be linear polarization in s direction by analyzing the relations between the reflection , absorption loss of optical thin film at oblique incidence and the polarization state , and at this time the brewster window made of very low - absorption material can be used 通過(guò)對(duì)斜入射高反射鏡反射率、吸收損耗與光束偏振特性間的關(guān)系進(jìn)行分析,表明諧振腔內(nèi)的本征振蕩最好應(yīng)為s方向的線偏振光,這樣光束輸出窗口還可采用布儒斯特窗。
The rain area is regarded as a random background medium , and the scattering field and backscattering matrix of the cylinder target in rain are gained . in the coherent case , the power of cylinder target in rain and air and their optimum polarization states are studied by the three - step method 在研究雨中目標(biāo)時(shí),本文把雨區(qū)看成隨機(jī)的背景介質(zhì),利用波傳播理論、目標(biāo)的邊界條件,得出介質(zhì)圓柱在雨中的散射場(chǎng)、后向散射矩陣,并進(jìn)行了相關(guān)計(jì)算。