10.1364/OL.44.000495">
 

Demonstration of on-chip quantum dot microcavity lasers in a molecularly engineered annular groove

Document Type

Article

Publication Date

2019

Abstract

The on-chip quantum dot (QD) microcavity laser engineered on an annular groove made of fused silica was demonstrated based on the external quasi-cavity configuration. By incorporating an appropriate dose of polymer into QD film, the spectral purity of the lasing spectrum was significantly enhanced. In contrast to the dye microcavity laser embedded on the same trench profile, a QD laser possesses a lifetime that is over 10 times longer. We have introduced a unique two-step quantum gain deposition process that has remarkably reduced the wavelength drifts of laser emissions in an aqueous environment by approximately 400%. The reconfigurable cavity platform in combination with an appropriately engineered quantum gain medium embedded onto it promises to enable photostable chip-scale coherent light sources for various photonic, chemical, and biochemical sensing applications.

Comments

© 2017 Optical Society of America

This is a subscription-access journal article appearing in Optics Letters as fully cited below. Current AFIT faculty, students and staff may access the full text of the work by clicking here.

Source Publication

Optics Letters

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