Coupling analysis of GaAs-based microdisk lasers with different external claddings

Danyu Liu; Haroldo T. Hattori; Lan Fu; Hark Hoe Tan; Chennupati Jagadish

doi:10.1109/JLT.2009.2028161

Coupling analysis of GaAs-based microdisk lasers with different external claddings

Danyu Liu^*, Haroldo T. Hattori, Lan Fu, Hark Hoe Tan, Chennupati Jagadish

^*Corresponding author for this work

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

3 Citations (Scopus)

Abstract

In this paper, we analyze the coupling of light from a GaAs microdisk laser into a waveguide. Starting from an air cladding, we examine several configurations to couple light into the waveguide with different cladding structures aimed to foster light coupling into the waveguide: photonic crystal and metallic (plasmonic cladding). In these coupling schemes, we tried to optimize the coupling of the emitted light into the waveguide, while maintaining a reasonable quality factor to allow the lasing operation of the device. We show that a plasmonic layer, introduced beside the waveguide can lead to a significant improvement in the coupling efficiency, reaching an efficiency close to 80%.

Original language	English
Article number	5170046
Pages (from-to)	5090-5098
Number of pages	9
Journal	Journal of Lightwave Technology
Volume	27
Issue number	22
DOIs	https://doi.org/10.1109/JLT.2009.2028161
Publication status	Published - 15 Nov 2009

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10.1109/JLT.2009.2028161

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title = "Coupling analysis of GaAs-based microdisk lasers with different external claddings",

abstract = "In this paper, we analyze the coupling of light from a GaAs microdisk laser into a waveguide. Starting from an air cladding, we examine several configurations to couple light into the waveguide with different cladding structures aimed to foster light coupling into the waveguide: photonic crystal and metallic (plasmonic cladding). In these coupling schemes, we tried to optimize the coupling of the emitted light into the waveguide, while maintaining a reasonable quality factor to allow the lasing operation of the device. We show that a plasmonic layer, introduced beside the waveguide can lead to a significant improvement in the coupling efficiency, reaching an efficiency close to 80%.",

keywords = "Microdisk lasers, Photonic crystals, Plasmonics, Whispering-gallery modes",

author = "Danyu Liu and Hattori, {Haroldo T.} and Lan Fu and Tan, {Hark Hoe} and Chennupati Jagadish",

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AU - Liu, Danyu

AU - Hattori, Haroldo T.

AU - Fu, Lan

AU - Tan, Hark Hoe

AU - Jagadish, Chennupati

PY - 2009/11/15

Y1 - 2009/11/15

N2 - In this paper, we analyze the coupling of light from a GaAs microdisk laser into a waveguide. Starting from an air cladding, we examine several configurations to couple light into the waveguide with different cladding structures aimed to foster light coupling into the waveguide: photonic crystal and metallic (plasmonic cladding). In these coupling schemes, we tried to optimize the coupling of the emitted light into the waveguide, while maintaining a reasonable quality factor to allow the lasing operation of the device. We show that a plasmonic layer, introduced beside the waveguide can lead to a significant improvement in the coupling efficiency, reaching an efficiency close to 80%.

AB - In this paper, we analyze the coupling of light from a GaAs microdisk laser into a waveguide. Starting from an air cladding, we examine several configurations to couple light into the waveguide with different cladding structures aimed to foster light coupling into the waveguide: photonic crystal and metallic (plasmonic cladding). In these coupling schemes, we tried to optimize the coupling of the emitted light into the waveguide, while maintaining a reasonable quality factor to allow the lasing operation of the device. We show that a plasmonic layer, introduced beside the waveguide can lead to a significant improvement in the coupling efficiency, reaching an efficiency close to 80%.

KW - Microdisk lasers

KW - Photonic crystals

KW - Plasmonics

KW - Whispering-gallery modes

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JO - Journal of Lightwave Technology

JF - Journal of Lightwave Technology

IS - 22

M1 - 5170046

ER -

Coupling analysis of GaAs-based microdisk lasers with different external claddings

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