Capsule-shaped metallic-cavity semiconductor lasers for low-energy on-chip light sources

Takuo Tanemura; Baifu Zhang; Yoshiaki Nakano

doi:10.1117/12.2230652

28 April 2016 Capsule-shaped metallic-cavity semiconductor lasers for low-energy on-chip light sources

Takuo Tanemura, Baifu Zhang, Yoshiaki Nakano

Author Affiliations +

Proceedings Volume 9892, Semiconductor Lasers and Laser Dynamics VII; 989214 (2016) https://doi.org/10.1117/12.2230652
Event: SPIE Photonics Europe, 2016, Brussels, Belgium

Abstract

We review our recent studies on capsule-shaped InP/InGaAs metallic-cavity lasers. By introducing an optimal curvature at the metallic sidewalls of conventional rectangular metallic lasers, the electric fields of the resonant mode are pushed effectively into the center of the mesa, which allows dramatic reduction of the plasmonic loss. The validity of the scheme is verified both numerically and experimentally. From three-dimensional finite-difference time-domain simulation and rate-equation analysis, we estimate that the threshold current can be reduced to as low as 60 μA with the effective modal volume of 0.45 μm³. Up to 4-fold increase in Q value is confirmed experimentally for the cavity structure with an optimal curvature.

Citation Download Citation

Takuo Tanemura, Takuo Tanemura, Baifu Zhang, Baifu Zhang, Yoshiaki Nakano, Yoshiaki Nakano, "Capsule-shaped metallic-cavity semiconductor lasers for low-energy on-chip light sources", Proc. SPIE 9892, Semiconductor Lasers and Laser Dynamics VII, 989214 (28 April 2016); doi: 10.1117/12.2230652; https://doi.org/10.1117/12.2230652

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