A kind of photonic crystal fiber with high birefringence and low cofinement loss

The triangular-lattice highly birefringent photonic crystal fibers(PCFs) with gradually increasing diameter of the air holes along radial axis are put forward. The modal birefringence, dispersion and confinement loss of the fundamental mode are simulated by full vector Galerkin finite element method(FEM) with a perfectly matched layer(PML). The results show that this PCF can keep low confinement loss when the rings of air holes are few. When the wavelength is 1.55 μm , the birefringence, the confinement loss of quick-axis and slow-axis are 1.365×10-3, 0.017 dB/m and 0.051 dB/m, respectively. A new way is proposed to fabricate polarization-mainting fibers with high performance.

聚合物光学干涉滤波器

在光子产品设计和制造中,聚合物的使用不断地增加。有一类聚合物光学元件仅通过聚合物本身获得产品形状和功能。具体的应用包括超高效率反射器和反射起偏器。最近,已生产出为发展光敏元件产业的全聚合物波长分离滤波器。这些滤波器在元件和设备级别方面为设计者和制造者提供新自由度。