| 1. | Chapter 2 reviews the properties of birefringent crystals
第二章介绍晶体光学的基本原理。 |
| 2. | Pif is composed of two polarizers and a series of birefringent crystals between them
Pif是由两偏振片间及中间的一系列晶体组成的。 |
| 3. | Moreover , we should find ways to calibrate the thickness and orientations of the birefringent crystals precisely
另外，必须找到精确测量晶体厚度和角度取向的方法。 |
| 4. | They are basic foundations of this thesis because pif , achromatic wave plates and polarization beam splitter have indivisible relationship with the properties of birefringent crystals
无论是偏振干涉滤光片，还是消色散延迟片或者是偏振分束器，都是基于晶体的性质而设计的。所以本章是本论文的基础之基础。 |
| 5. | Above all , the optical propagation characteristics in crystals are studied in detail . derived from impulse response and sampling theorem in electronics , we establish the mathematical model of pif constructed by a series of birefringent crystal retarders with arbitrary azimuths sandwiched between two polarizers
本论文首先深入分析光在晶体中的传播特性，借鉴电学中的脉冲响应和采样定理，建立由前后两个偏振片之间夹放一系列角度任意延迟片构成的偏振干涉滤光片数学模型，并分析了其脉冲响应特性。 |
| 6. | 3 . the principle of the interleaver based on the interference of polarized light is analyzed theoreticallyand the interleaver architecture of this kind is presented . a 50ghz interleaver is designed and the two series of interleaved spectrum like cosine function is obtained experimentally ; by using the tandem of two birefringent crystals with different optical path difference , we get the flattop spectrum
3 、分析了pbi型interleaver滤波器的基本原理，给出了一种pbi型interleaver滤波器结构；设计了50ghz光学梳状滤波器，实验得到了该器件两组交错分波类余弦输出光谱；采用不同光程差的晶体级联方案，实现了输出光谱平顶化。 |
