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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 3 — Feb. 2, 2009
  • pp: 1679–1690

Characteristics of dielectric-band modified single-cell photonic crystal lasers

You-Shin No, Ho-Seok Ee, Soon-Hong Kwon, Sun-Kyung Kim, Min-Kyo Seo, Ju-Hyung Kang, Yong-Hee Lee, and Hong-Gyu Park  »View Author Affiliations


Optics Express, Vol. 17, Issue 3, pp. 1679-1690 (2009)
http://dx.doi.org/10.1364/OE.17.001679


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Abstract

We demonstrate new types of dielectric-band photonic crystal lasers in a two-dimensional modified single-cell cavity with enlarged air holes. Finite-difference time-domain simulations performed in real and Fourier spaces show that the dielectric-band cavity modes originating from the first band edge point in the dielectric band have mode patterns that are distinguishable from conventional air-band cavity modes. In our experiment, the observed multimode lasing peaks are identified as the hexapole and the monopole dielectric-band cavity modes through the spectral positions and mode images. The thresholds of these lasers are measured as ~340 μW and ~450 μW, respectively, at room temperature. In addition, using the simulation based on the actual fabricated structures, quality factors and mode volumes are computed as 4900 and 1.09 (λ/n)3 for the hexapole mode, and 4300 and 2.27 (λ/n)3 for the monopole mode, respectively.

© 2009 Optical Society of America

OCIS Codes
(140.5960) Lasers and laser optics : Semiconductor lasers
(250.5300) Optoelectronics : Photonic integrated circuits
(140.3945) Lasers and laser optics : Microcavities
(220.4241) Optical design and fabrication : Nanostructure fabrication
(230.5298) Optical devices : Photonic crystals

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: December 9, 2008
Revised Manuscript: January 20, 2009
Manuscript Accepted: January 21, 2009
Published: January 27, 2009

Citation
You-Shin No, Ho-Seok Ee, Soon-Hong Kwon, Sun-Kyung Kim, Min-Kyo Seo, Ju-Hyung Kang, Yong-Hee Lee, and Hong-Gyu Park, "Characteristics of dielectric-band modified single-cell photonic crystal lasers," Opt. Express 17, 1679-1690 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-3-1679


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  26. A higher-order band edge mode with the wavelength of 1597 nm is observed in Fig. 7(a) (D).
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