Current Optics and Photonics

Optical Society of Korea (한국광학회)
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Wideband Slow Light in a Line-defect Annular Photonic-crystal Waveguide

  • Kuang, Feng (College of Electronic and Optical Engineering & College of Microelectronics, Nanjing University of Posts and Telecommunications (NJUPT)) ;
  • Li, Feng (New Energy Technology Engineering Laboratory of Jiangsu Province & School of Science, Nanjing University of Posts and Telecommunications (NJUPT)) ;
  • Yang, Zhihong (New Energy Technology Engineering Laboratory of Jiangsu Province & School of Science, Nanjing University of Posts and Telecommunications (NJUPT)) ;
  • Wu, Hong (New Energy Technology Engineering Laboratory of Jiangsu Province & School of Science, Nanjing University of Posts and Telecommunications (NJUPT))
  • Received : 2019.05.02
  • Accepted : 2019.07.27
  • Published : 2019.10.25
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Abstract

In this theoretical study, a line-defect photonic-crystal waveguide hosted in an annular photonic crystal was demonstrated to provide high-performance slow light with a wide band, low group-velocity dispersion, and a large normalized delay-bandwidth product. Combined with structural-parameter optimization and selective optofluid injection, the normalized delay-bandwidth product could be enhanced to a large value of 0.502 with a wide bandwidth of 58.4 nm in the optical-communication window, for a silicon-on-insulator structure. In addition, the group-velocity dispersion is on the order of $10^5$ ($ps^2/km$) in the slow-light region, which could be neglected while keeping the signal transmission unchanged.

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References

  1. H. Li, J. Wang, H. Lin, L. Xu, W. Xu, R. Wang, Y. Song, and D. Zhu, "Amplification of fluorescent contrast by photonic crystals in optical storage," Adv. Mater. 22, 1237-1241 (2010). https://doi.org/10.1002/adma.200903105
  2. J. Adachi, N. Ishikura, H. Sasaki, and T. Baba, "Wide range tuning of slow light pulse in SOI photonic crystal coupled waveguide via folded chirping," IEEE J. Sel. Top. Quantum Electron. 16, 192-199 (2010). https://doi.org/10.1109/JSTQE.2009.2032515
  3. S. Bakhshi, M. K. Moravvej-Farshi, and M. Ebnali-Heidari, "Design of an ultracompact low-power all-optical modulator by means of dispersion engineered slow light regime in a photonic crystal Mach-Zehnder interferometer," Appl. Opt. 51, 2687-2692 (2012). https://doi.org/10.1364/AO.51.002687
  4. A. Rostami, A. Haddadpour, F. Nazari, and H. Alipour, "Proposal for an ultracompact tunable wavelength-divisionmultiplexing optical filter based on quasi-2D photonic crystals," J. Opt. 12, 015405 (2010). https://doi.org/10.1088/2040-8978/12/1/015405
  5. S. A. Schulz, L. O'Faolain, D. M. Beggs, T. P. White, and A. Melloni, T. F. Krauss, "Dispersion engineered slow light in photonic crystals: a comparison," J. Opt. 12, 104004 (2010). https://doi.org/10.1088/2040-8978/12/10/104004
  6. M. Ebnali-Heidari, C. Grillet, C. Monat, and B. J. Eggleton, "Dispersion engineering of slow light photonic crystal waveguides using microfluidic infiltration," Opt. Express 17, 1628-1635 (2009). https://doi.org/10.1364/OE.17.001628
  7. A. Hocini, M. Maache, and D. Khedrouche, "Wideband and low dispersion slow light by altering the geometry of a photonic crystal waveguide," Opt. Commun. 427, 396-404 (2018). https://doi.org/10.1016/j.optcom.2018.06.077
  8. H. Kurt, K. Üstün, and L. Ayas, "Study of different spectral regions and delay bandwidth relation in slow light photonic crystal waveguides," Opt. Express 18, 26965-26977 (2010). https://doi.org/10.1364/OE.18.026965
  9. J. Li, T. P. White, L. O'Faolain, A. Gomez-Iglesias, and T. F. Krauss, "Systematic design of flat band slow light in photonic crystal waveguides," Opt. Express 16, 6227-6232 (2008). https://doi.org/10.1364/OE.16.006227
  10. J. Tang, T. Wang, X. Li, B. Wang, C. Dong, L. Gao, B. Liu, Y. He, and W. Yan, "Wideband and low dispersion slow light in lattice-shifted photonic crystal waveguides," J. Lightwave Technol. 31, 3188-3194 (2013). https://doi.org/10.1109/JLT.2013.2280716
  11. M. A. Mansouri-Birjandi, M. Janfaza, and A. Tavousi, "Flat-band slow light in a photonic crystal slab waveguide by vertical geometry adjustment and selective infiltration of optofluidics," J. Electron. Mater. 46, 6528-6534 (2017). https://doi.org/10.1007/s11664-017-5695-2
  12. M. Pourmand, A. Karimkhani, and F. Nazari, "Wideband and low-dispersion engineered slow light using liquid infiltration of a modified photonic crystal waveguide," Appl. Opt. 55, 10060-10066 (2016). https://doi.org/10.1364/AO.55.010060
  13. A. Khodamohammadi, H. Khoshsima, V. Fallahi, and M. Sahrai, "Wideband slab photonic crystal waveguides for slow light using differential optofluidic infiltration," Appl. Opt. 54, 1002-1009 (2015). https://doi.org/10.1364/AO.54.001002
  14. S. Pu, S. Dong, and J. Huang, "Tunable slow light based on magnetic-fluid-infiltrated photonic crystal waveguides," J. Opt. 16, 045102 (2014). https://doi.org/10.1088/2040-8978/16/4/045102
  15. H. Kurt and D. S. Citrin, "Annular photonic crystals," Opt. Express 13, 10316-10326 (2005). https://doi.org/10.1364/OPEX.13.010316
  16. J. Hou, D. S. Citrin, H. Wu, D. Gao, and Z. Zhou, "Enhanced bandgap in annular photonic-crystal silicon-oninsulator asymmetric slabs," Opt. Lett. 36, 2263-2265 (2011). https://doi.org/10.1364/OL.36.002263
  17. H. Wu, D. S. Citrin, L. Y. Jiang, and X. Y. Li, "Polarizationindependent slow light in annular photonic crystals," Appl. Phys. Lett. 102, 141112 (2013). https://doi.org/10.1063/1.4801977
  18. H. Wu and F. Li, "Negative-refraction effect for both TE and TM polarizations in two-dimensional annular photonic crystals," Curr. Opt. Photon. 2, 47-52 (2018). https://doi.org/10.3807/COPP.2018.2.1.047
  19. M. Qiu, "Effective index method for heterostructure-slabwaveguide- based two-dimensional photonic crystals," Appl. Phys. Lett. 81, 1163-1165 (2002). https://doi.org/10.1063/1.1500774
  20. G. Hocker and W. K. Burns, "Mode dispersion in diffused channel waveguides by the effective index method," Appl. Opt. 16, 113-118 (1977). https://doi.org/10.1364/AO.16.000113
  21. S. A. Schulz, A. H. K. Park, I. D. Leon, J. Upham, and R. W. Boyd, "Beyond the effective index method: improved accuracy for 2D simulations of photonic crystal waveguides," J. Opt. 17, 075006 (2015). https://doi.org/10.1088/2040-8978/17/7/075006
  22. A. Cicek and B. Ulug, "Polarization-independent waveguiding with annular photonic crystals," Opt. Express 17, 18381-18386 (2009). https://doi.org/10.1364/OE.17.018381
  23. T. Baba, "Slow light in photonic crystals," Nat. Photonics 2, 465-473 (2008). https://doi.org/10.1038/nphoton.2008.146
  24. J. Ma and C. Jiang, "Demonstration of ultraslow modes in asymmetric line-defect photonic crystal waveguides," IEEE Photon. Technol. Lett. 20, 1237-1239 (2008). https://doi.org/10.1109/LPT.2008.926018
  25. M. D. Settle, R. J. P. Engelen, M. Salib, A. Michaeli, L. Kuipers, and T. F. Krauss, "Flatband slow light in photonic crystals featuring spatial pulse compression and terahertz bandwidth," Opt. Express 15, 219-226 (2007). https://doi.org/10.1364/OE.15.000219
  26. S. Elshahat, K. Khan, A. Yadav, L. Bibbo, and Z. Ouyang, "Slow-light transmission with high group index and large normalized delay bandwidth product through successive defect rods on intrinsic photonic crystal waveguide," Opt. Commun. 418, 73-79 (2018). https://doi.org/10.1016/j.optcom.2018.02.063