Abstract

We have observed laser action from optically-pumped InAs-quantum-dots embedded in a line-defect waveguide in an air-bridge type GaAs-photonic-crystal slab (an array of air-holes). The lasing is found to occur without any optical cavity such as a set of Fabry-Perot mirrors. Comparison of the observed transmittance spectrum with the calculated band dispersion of the W3 defect-mode enables us to specify the lasing wavelength as that at the band edge. From this fact it follows that distributed feedback mechanism at the band edge with a vanishingly small group-velocity should be responsible for the present lasing. Usefulness of this kind of compact laser in a future ultrafast planar photonic integrated circuit is discussed.

© 2004 Optical Society of America

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    [CrossRef]

Appl. Phys. Lett.

S. Kohmoto, H. Nakamura, T. Ishikawa, and K. Asakawa, �??Site-controlled self-organization of individual InAs quantum dots by scanning probe-assisted nanolithography,�?? Appl. Phys. Lett. 75, 3488-3490 (1999).
[CrossRef]

M. Meier, A. Mekis, A. Dodabalapur, A. Timko, R. E. Slisher, J. D. Joannopoulos, and O. Nalamasu, �??Laser action from two-dimensional distributed feedback in photonic crystals,�?? Appl. Phys. Lett. 74, 7-9 (1999).
[CrossRef]

M. Notomi, H. Suzuki, and T. Tamamura, �??Directional lasing oscillation of two-dimensional organic photonic crystal lasers at several photonic band gaps,�?? Appl. Phys. Lett. 78, 1325-1327 (2001).
[CrossRef]

A. Sugitatsu, T. Asano and S. Noda, �??Characterization of line-defect-waveguide lasers in two-dimensional photonic-crystal slabs,�?? Appl. Phys. Lett. 84, 5395-5397 (2004).
[CrossRef]

H. Y. Ryu, S. H. Kwon, Y. J. Lee, and Y. H. Lee, �??Very-low threshold photonic band-edge lasers from free-standing triangular photonic crystal slabs,�?? Appl. Phys. Lett. 80, 3476-3468 (2002).
[CrossRef]

Y. Sugimoto, Y. Tanaka, N. Ikeda, T. Yang, H. Nakamura, K. Asakawa, K. Inoue, T. Maruyama, K. Miyashita, K. Ishida, and Y. Watanabe, �??Design, fabrication, and characterization of coupling-strength-controlled directional coupler based on two-dimensional photonic-crystal slab waveguides,�?? Appl. Phys. Lett. 83, 3236-3238 (2003).
[CrossRef]

Electron. Lett.

K. Inoshita and T. Baba, �??Lasing at bend, branch and intersection of photonic crystal waveguides,�?? Electron. Lett. 39, 844-845 (2003).
[CrossRef]

A. Sugitatsu and S. Noda, �??Room temperature operation of 2D photonic crystal slab defect-waveguide laser with optical pump,�?? Electron. Lett. 39, 213-214 (2003).
[CrossRef]

Jpn. J. Appl. Phys

K. Inoue, Y. Sugimoto, N. Ikeda, Y. Tanaka, K. Asakawa, T. Maruyama, K. Miyashita, K. Ishida, and Y. Watanabe, �??Ultra-Small GaAs-Photonic-Crystal-Waveguide-Based Near-Infrared Components: Fabrication, Guided-Mode Identification, and Estimation of Low-Loss and Broad Band-Width in Straight Waveguides, 60º-Bends, and Y-splitters,�?? Jpn. J. Appl. Phys. 43, 6112-6124 (2004).

Jpn. J. Appl. Phys.

K. Inoue, Y. Sugimoto, N. Ikeda, Y. Tanaka, K. Asakawa, H. Sasaki, and K. Ishida, �??Ultra-Small Photonic-Crystal-Waveguide-Based Y-Splitters Useful in the Near-Infrared Wavelength Region,�?? Jpn. J. Appl. Phys. 43, L446-L448 (2004).
[CrossRef]

K. Inoue, M. Sasada, J. Kawamata, K. Sakoda, and J. W. Haus, �??A Two-Dimensional Photonic Crystal Laser,�?? Jpn. J. Appl. Phys. 38, L157-L159 (1999).
[CrossRef]

Opt. Express

Phys. Rev. Lett.

E. Yablonovitch, �??Inhibited spontaneous emission in solid-state physics and electronics,�?? Phys. Rev. Lett. 58, 2059-2062 (1987).
[CrossRef]

Proc. SPIE

Y. Sugimoto, N. Ikeda, N. Carlsson, N. Kawai, K. Inoue, and K. Asakawa, �??Light propagation characteristics of photonic crystal waveguide for miniaturized ultra-fast optical-pulse control/delay devices,�?? in Photonic Technology in the 21st Century, Proc. SPIE 4598, 58-72 (2002).

Other

J. D. Joannopoulos, R. D. Meade, and J. N. Winn, Photonic Crystals; Molding the Flow of Light (Princeton University Press, Princeton, 1995).

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