| Original Articles |
|
|
|
|
Characteristics of Photonic Bandgap Fibres with Hollow Core's Inner Surface Coated by a Layer Material |
DU Jiang-Bing;LIU Yan-Ge;WANG Zhi;LIU Zhan-Yuan;KAI Gui-Yun;DONG
Xiao-Yi |
| Key laboratory of Opto-electronic Information and Technology, Ministry of Education and Institute of Modern Optics, Nankai University, Tianjin 300071 |
|
| Cite this article: |
|
DU Jiang-Bing, LIU Yan-Ge, WANG Zhi et al 2008 Chin. Phys. Lett. 25 164-167 |
|
|
|
Abstract Hollow core's inner surface coating in a photonic bandgap fibre (PBGF) is investigated by means of finite element method. The coat material and thickness-dependence dispersion curve and group velocity dispersion are numerically studied. The coating with materials of low index or small thickness
will rise up the dispersion curve but will not induce surface modes. However, coating with materials of high index or big coat thickness will induce surface modes and avoided-crossings. By varying coat material's refractive index and thickness, the appearances of surface modes and avoided-crossings can be changed. It is found that the avoided-crossing can enormously enlarge the negative dispersion which can find applications in dispersion compensation. We numerically achieve a negative dispersion as large as - 1416.15ps/nm/km. The results give a physical insight into the propagation properties of PBGFs with the hollow core coated by a layer of material and are of crucial significance in the applications of PBGF coating.
|
| Keywords:
42.81.Qb
42.70.Qs
|
|
|
Received: 25 April 2007
Published: 27 December 2007
|
|
| PACS: |
42.81.Qb
|
(Fiber waveguides, couplers, and arrays)
|
| |
42.70.Qs
|
(Photonic bandgap materials)
|
|
|
|
|
|
[1] Knight J C, Birks T A, Russell P S J and Atkin D M 1996, Opt. Lett. 21 1547
[2] Cregan R F, Managan B J, Knight J C, Birks T A, Russell PS J, Roberts P J and Allen D C 1999 Science 285 1537
[3] Benabid F, Knight J C, Antonopoulos G and Russell P S J2002 Science 298 399
[4] Zhang C, Kai G, Wang Z, Sun T, Wang C, Liu Y, Zhang W, LiuJ, Yuan S and Dong X 2005 Opt. Lett. 30 2372
[5] Sazio P J A, Amezcua-Correa A, Finlayson C E, Hayes J R,Scheidemantel T J, Baril N F, Jackson B R, Won D J, Zhang F, MargineE R, Gopalan V, Crespi V H and Badding J V 2006 Science 311 1583
[6] Poborchii V, Tada T, Kanayama T and Moroz A 2003 Appl. Phys. Lett. 82 508
[7] Kurt H and Citrin D S 2005 Opt. Express 1310316
[8] Roberts P J, Williams D P, Mangan B J, Sabert H, Couny F,Wadsworth W J, Birks T A, Knight J C and Russell P S J 2005 Opt. Express 13 8277
[9] Saitoh K and Koshiba M 2002 IEEE J. QuantumElectron. 38 927
[10] Saitoh K and Koshiba M 2003 Opt. Express 113100
[11] Saitoh K, Mortensen N A and Koshiba M 2004 Opt.Express 12 394
[12] West J A, Smith C M, Borrelli N F, Allan D C and Koch K W2004 Opt. Express 12 1485 |
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
