Effect of waveguide basic structure on slow light in phtonic crystal coupled resonator optical waveguide

被引：0
|
作者：
Li C. [1 ]
Tian H. [2 ]
Lu H. [2 ]
Ji Y. [2 ]
机构：
[1] School of Automation Engineering, Qingdao University, Qingdao
[2] Key Laboratory of Information of Photonics and Optical Communication, School of Telecommunication Engineering, Beijing University of Posts and Telecommunications
来源：
Guangxue Xuebao/Acta Optica Sinica | 2010年 / 30卷 / 07期
关键词：
Coupled resonator optical waveguide; Guided mode; Photonic crystal; Slow light; Supercell;
D O I：
10.3788/AOS20103007.2108
中图分类号：
学科分类号：
摘要：
Structure parameters of the slow light in the photonic crystal coupled resonator optical waveguide have been investigated. It is found that cavity distance n, filling factor r/a and size of the defect rod rd are the most significant factors affecting the transmission properties of the slow light guided mode in the photonic band gap. With the increase of cavity distance, the group velocity vg of guided mode decreases rapidly. When filling factor and defect rod size increase, the guided mode shifts towards a lower frequency with vg decreasing simultaneously. When the filling factor and defect rod size increase to a respective certain value, vg reaches a bottom value. And as r and rd exceeds the above certain value, group velocity of the guided mode will increase. By choosing appropriate structure parametersm of n=6, r=0.22a, rd=0.12a, it is obtained that the maximum value of guided mode vgmax=1.93 × 10-3 c and vg < 10-4 c at the band edge in the photonic crystal coupled resonator optical waveguide. These results indicate that effective control over the slow light in the photonic crystal coupled resonator optical waveguide could be realized through basic structure design, which may offers significant support for design and application of functional devices based on photonic crystals.
引用
收藏
页码：2108 / 2115
页数：7
相关论文
共 32 条
  • [1] Povinelli M.L., Johnson S.G., Joannopoulos J.D., Slow-light, band-edge waveguides for tunable time delays, Opt. Express, 13, 8, pp. 7145-7159, (2005)
  • [2] Tucker R.S., Ku P.C., Chang-Hasnain C.J., Slow-light optical buffers: Capabilities and fundamental limitations, Lightwave. Technol., 23, 12, pp. 4046-4066, (2005)
  • [3] Tucker R.S., Ku P.C., Chang-Hasnain C.J., Delay-bandwidth product and storage density in slow-light optical buffers, Electron. Lett., 41, 4, pp. 61-62, (2005)
  • [4] Soljacic M., Johnson S.G., Fan S., Et al., Photonic-crystal slow-light enhancement of nonlinear phase sensitivity, J. Opt. Soc. Am. B, 19, 9, pp. 2052-2059, (2002)
  • [5] Almeida R., Pelegrini J., Waldman H., A generic-traffic optical buffer modeling for asynchronous optical switching networks, Commun. Lett., 9, 2, pp. 175-177, (2005)
  • [6] Fayoumi A., Jayasumana A.P., A subjective-mapping based model for optical shared-buffer cross-connect, IEEE ACM Trans. Netw., 15, 1, pp. 226-233, (2007)
  • [7] Kushawaha A., Bose S.K., Singh Y.N., Analytical modeling for performance studies of an. FLBM-based all-optical packet switch, J. IEEE Comm. Lett., 5, 5, pp. 227-229, (2001)
  • [8] Hau L.V., Dutton S.E., Behroozi C.H., Light speed reduction to 17 metres per second in an ultracold atomicgaps, Nature, 397, pp. 594-598, (1999)
  • [9] Ku P.C., Sedgwich F., Chang-Hasnain C.J., Et al., Slow light in semiconductor quantum wells, Opt. Lett., 29, 19, pp. 2291-2293, (2004)
  • [10] Ohman F., Yvind K., Mork J., Slow light in semiconductor waveguide for true-time delay applications in microwave photonics, IEEE Photo. Tech. Lett., 19, 15, pp. 1145-1147, (2007)
1234