Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Acta Optica Sinica》 2010-03
Add to Favorite Get Latest Update

Design for Holey Fiber with Birefringent Beat Length Independent of Wavelength

Li Mingjia Shi Zhidong Yin Jun Lin Jianqiang Chen Hua (Key Laboratory of Specialty Fiber Optics and Optical Access Networks,Shanghai University, Shanghai 200072,China)  
A holey fiber with beat length independent of wavelength is designed by combination of two defect structures respectively with positive and negative birefringence.The radius of a pair of air holes adjacent to the core is enlarged and the other circular air holes in the cladding are substituted with elliptical holes at the same time. Birefringence with different signs generated by these two changes may interact with each other so that the beat length is less sensitive with wavelength.Finite-difference beam propagation method(FD-BPM) is used to calculate and analyze the influence of different structural parameters on birefringence of holey fiber.Stable beat length can be achieved at some wavelength window by adjusting the structural parameters and the value of the beat length can also be tuned according to practical requirement.Uniform beat length with more than 180 nm bandwidth at 1310 nm wavelength window is obtained by optimizing structural parameters of holey fiber.
【Fund】: 国家自然科学基金(60777031);; 上海市重点学科和科委重点实验室项目(S30108 08DZ2231100);; 上海市教委创新基金(09YZ31)资助课题
【CateGory Index】: TN253
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved