Two-dimensional photonic crystal hexagonal waveguide ring laser

Se Heon Kim, Han Youl Ryu, Hong Kyu Park, Guk Hyun Kim, Yong Seok Choi, Yong Hee Lee, Jeong Soo Kim

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Hexagonal ring-type resonators defined by two-dimensional photonic crystal waveguides are proposed and demonstrated. Lasing actions are observed from the photonic crystal ring resonator patterned on a free-standing slab with InGaAsP active layers emitting near 1.55 μm. For a ring resonator with 8-μm diameter, the threshold peak pump power is ∼3 mW. The quality factor of the ring resonator mode estimated from below-threshold linewidth shows that the sum of the propagation loss and the bending loss of the photonic crystal ring resonator is less than ∼260cm-1. The photonic crystal ring resonators can be used for the characterization of the optical losses in photonic crystal waveguides.

Original languageEnglish
Pages (from-to)2499-2501
Number of pages3
JournalApplied Physics Letters
Issue number14
Publication statusPublished - 2002 Sep 30
Externally publishedYes


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Kim, S. H., Ryu, H. Y., Park, H. K., Kim, G. H., Choi, Y. S., Lee, Y. H., & Kim, J. S. (2002). Two-dimensional photonic crystal hexagonal waveguide ring laser. Applied Physics Letters, 81(14), 2499-2501.