Two-dimensional photonic crystal hexagonal waveguide ring laser

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 ∼260 cm−1. The photonic crystal ring resonators can be used for the characterization of the optical losses in photonic crystal waveguides.

[1]  Yong-Hee Lee,et al.  Nondegenerate monopole-mode two-dimensional photonic band gap laser , 2001 .

[2]  Dong Hoon Jang,et al.  Room-temperature triangular-lattice two-dimensional photonic band gap lasers operating at 1.54 μm , 2000 .

[3]  Xavier Letartre,et al.  Group velocity and propagation losses measurement in a single-line photonic-crystal waveguide on InP membranes , 2001 .

[4]  A. F. J. Levi,et al.  Whispering-gallery mode microdisk lasers , 1992 .

[5]  Masaya Notomi,et al.  Singlemode transmission within photonic bandgap of width-varied single-line-defect photonic crystal waveguides on SOI substrates , 2001 .

[6]  Susumu Noda,et al.  Trapping and emission of photons by a single defect in a photonic bandgap structure , 2000, Nature.

[7]  D. Song,et al.  InGaAsP microdisk lasers on Al/sub x/O/sub y/ , 2000, IEEE Photonics Technology Letters.

[8]  Henri Benisty,et al.  Coupled guide and cavity in a two-dimensional photonic crystal , 2001 .

[9]  Steven G. Johnson,et al.  Linear waveguides in photonic-crystal slabs , 2000 .

[10]  Yong-Hee Lee,et al.  Conditions of single guided mode in two-dimensional triangular photonic crystal slab waveguides , 2000 .

[11]  Toshihiko Baba,et al.  Observation of light propagation in photonic crystal optical waveguides with bends , 1999 .

[12]  Axel Scherer,et al.  Room temperature photonic crystal defect lasers at near-infrared wavelengths in InGaAsP , 1999 .

[13]  Masayuki Fujita,et al.  Ultrasmall and ultralow threshold GaInAsP-InP microdisk injection lasers: design, fabrication, lasing characteristics, and spontaneous emission factor , 1999 .

[14]  Goro Sasaki,et al.  Coherent two-dimensional lasing action in surface-emitting laser with triangular-lattice photonic crystal structure , 1999 .

[15]  Chu,et al.  Photonic-wire laser. , 1995, Physical review letters.

[16]  J. Joannopoulos,et al.  High Transmission through Sharp Bends in Photonic Crystal Waveguides. , 1996, Physical review letters.

[17]  John D. Joannopoulos,et al.  Laser action from two-dimensional distributed feedback in photonic crystals , 1999 .