Photonic band-edge micro lasers with quantum dot gain

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

doi:10.1364/OE.17.000640

Photonic band-edge micro lasers with quantum dot gain

Masahiro Nomura, Satoshi Iwamoto, Aniwat Tandaechanurat, Yasutomo Ota, Naoto Kumagai, Yasuhiko Arakawa

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

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 ∼80 nW at 6 K was achieved. Lasing was observed in a defect-free photonic crystal as small as ∼7 m square.

Original language	English
Pages (from-to)	640-648
Number of pages	9
Journal	Optics Express
Volume	17
Issue number	2
DOIs	https://doi.org/10.1364/OE.17.000640
Publication status	Published - 2009 Jan 19
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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AU - Nomura, Masahiro

AU - Iwamoto, Satoshi

AU - Tandaechanurat, Aniwat

AU - Ota, Yasutomo

AU - Kumagai, Naoto

AU - Arakawa, Yasuhiko

PY - 2009/1/19

Y1 - 2009/1/19

N2 - 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 ∼80 nW at 6 K was achieved. Lasing was observed in a defect-free photonic crystal as small as ∼7 m square.

AB - 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 ∼80 nW at 6 K was achieved. Lasing was observed in a defect-free photonic crystal as small as ∼7 m square.

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Photonic band-edge micro lasers with quantum dot gain

Abstract

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