Title :
Experimental Study of Mode Field Evolution of Dual-Core Photonic Crystal Fiber
Author :
Yang, Sigang ; Zhang, Yejin ; Li, Jinyan ; Chen, Wei ; He, Lina ; Xie, Shizhong
Author_Institution :
Tsinghua Univ., Beijing
Abstract :
The accurate mode field profile of high negative dispersion dual-core photonic crystal fiber (DCPCF) is measured. The mode field evolution of DCPCF with wavelength is studied experimentally for the first time. The measurement result shows that no individual inner core mode or outer core mode exists, but two modes coexist simultaneously, and either one of them is dominant. The mode field evolution versus wavelength indicates that the wavelength range where the modes coupling takes place between inner core and outer core is broader than that of theoretical design.
Keywords :
optical fibre dispersion; photonic crystals; high negative dispersion dual-core photonic crystal fiber; mode field evolution; Bandwidth; Couplings; Dispersion; Helium; Optical fiber testing; Photonic crystal fibers; Pulse shaping methods; Refractive index; System performance; Wavelength measurement; Dual core; measurement; mode field; photonic crystal fiber (PCF);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.903868
