双折射滤波器滤波特性及其应用
文献类型：学位论文
| 作者 | 周煜 |
| 学位类别 | 硕士 |
| 答辩日期 | 2006 |
| 授予单位 | 中国科学院上海光学精密机械研究所 |
| 导师 | 刘立人 |
| 关键词 | 双折射滤波器 离轴消光比 锥光干涉图 增益均衡器 |
| 其他题名 | Theoretical Study and Applications of Birefringent filters |
| 中文摘要 | 该论文论述了作者对双折射滤波器滤波特性的理论及其应用的研究工作:(1)对双折射滤波器近离轴滤波特性进行了研究,提出了一种Solc型双折射滤波器的离轴消光比的一般性计算方法.在此基础上,模拟出了具有不同数量的双折射晶体的Solc型双折射滤波器的锥光干涉图.此外,对由入射光倾斜导致的滤波光谱偏移进行了研究,相对于发散入射光的视场传输率和平均光谱传输率也进行了模拟.初步的试验结果证实了理论推算的合理性.此外该方法也适用于计算各种类型双折射滤波器的离轴消光比.(2)提出了一种根据所需滤波波形设计双折射滤波器的新方法,这种方法可以用较少的晶体片实现复杂的滤波波形,并且避免了反推法中复杂的计算.用此方法设计了一种可实现任意滤波波形的偏振无关滤波器,这种滤波器可用作频率选择器、波分复用器、补偿器、增益均衡器、延时网络等需要特殊滤波波形函数的器件.作为示例设计了一种新型EDFA增益均衡器,在1550nm—1562nm的波长范围内用三块晶片的双折射滤波器就实现了0.15dB以下的增益平坦. |
| 英文摘要 | Birefringent filters have many merits, for example, extremely narrow bandwidth (to 0.1 nm), wide field of view, tunable, and arbitrarily specified transmittances they are widely used for optical filters. In this dissertation, some new theoretical studies and application of birefringent filters are presented. (1) The characteristics of light propagating near the axis of birefringent filter are studied. A generalized formulation to describe the nearly-off-axis transmissivity of Sole birefringent filter is derived. On this basis, the polarization conoscopic figures of Sole filters with different stages of birefringent plates are simulated. Furthermore, the variation of spectral transmission due to the incline incidence is analyzed, and the view-field transmissivity and the spectral transmissivity averaged with respect to the spread of incident light are given. Primary experiments for verifications are demonstrated, too. (2) A new method is proposed to design birefringent filters with arbitrarily specified transmittance, which could realized the complicated transmittance by less birefringent plates with simple calculation than those using the inversely-deduce method. Therefore, polarization-independent birefringent filters whose transmittance is arbitrarily specified can be founded. These filters can be used for, for example, frequency selective hybrids, interleavers, compensators, gain equalizers, delay networks and so on. As a demonstration, a new type of EDFA gain equalizer is designed. A three-stage birefringent filter can give a flat gain spectrum with <0.15dB variation in the wavelength range 1550nm-1562nm. |
| 语种 | 中文 |
| 源URL | [http://ir.siom.ac.cn/handle/181231/16539]  |
| 专题 | 上海光学精密机械研究所_学位论文 |
| 推荐引用方式 GB/T 7714 | 周煜. 双折射滤波器滤波特性及其应用[D]. 中国科学院上海光学精密机械研究所. 2006. |
入库方式： OAI收割
来源：上海光学精密机械研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。