Photonic band-edge micro lasers with quantum dot gain | Zendy

Masahiro Nomura | Zendy; Satoshi Iwamoto | Zendy; Aniwat Tandaechanurat | Zendy; Yasutomo Ota | Zendy; Naoto Kumagai | Zendy; Yasuhiko Arakawa | Zendy

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Photonic band-edge micro lasers with quantum dot gain

Author(s) -

Masahiro Nomura,

Satoshi Iwamoto,

Aniwat Tandaechanurat,

Yasutomo Ota,

Naoto Kumagai,

Yasuhiko Arakawa

Publication year - 2009

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.17.000640

Subject(s) - lasing threshold , photonic crystal , optoelectronics , laser , optics , materials science , quantum dot laser , quantum dot , semiconductor laser theory , photonics , physics

We demonstrate optically pumped continuous-wave photonic band-edge microlasers on a two-dimensional photonic crystal slab. Lasing was observed at a photonic band-edge, where the group velocity was significantly small near the K point of the band structure having a triangular lattice. Lasing was achieved by using a quantum dot gain material, which resulted in a significant decrease in the laser threshold, compared with photonic band-edge lasers using quantum well gain material. Extremely low laser thresholds of approximately 80 nW at 6 K was achieved. Lasing was observed in a defect-free photonic crystal as small as approximately 7 microm square.

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