1.55-μm supercontinuum based on dispersion-flattened photonic crystal fiber  

作　　者：ZHANG Xia XU Yong-zhao HUANG Yong-qing REN Xiao-min 

机构地区：[1]Key Laboratory of Optical Communication and Lightwave Technologies, Ministry of Education, Beijing University of postsand Telecommunications, Beijing 100876, China

出　　处：《Optoelectronics Letters》2007年第5期346-348,共3页光电子快报（英文版）

基　　金：This work is supported by the National Basic Research Program ofChina (2003CB314906);the Key grant Project of Chinese Minis-try of Education (NO.104046).

摘　　要：A dispersion-flattened photonic crystal fiber with normal dispersion is designed for generating flat wideband supercontanuum, and the supercontinuum generation in this fiber is numerically analyzed. The results show that by appropriately designing the photonic crystal fiber, it can achieve flattened dispersion in the normal dispersion region. It is found that a fiber characterized by a flattened dispersion with a small normal dispersion is suitable for a flat wideband supercontinuum generation. In the process of spectral broadening, self-phase modulation effect plays a dominant role. By filtering the supercontinuum, pulses with different central wavelength over a wide spectral range can be obtained. The pulse width is determined by the bandwidth of the filter.

关 键 词：光学纤维 光子晶体 色散 频率 

分 类 号：TN253[电子电信—物理电子学]