Quantum-dot micropillar lasers subject to coherent time-delayed optical feedback from a short external cavity

Steffen Holzinger; Christian Schneider; Sven Höfling; Xavier Porte; Stephan Reitzenstein

doi:10.1038/s41598-018-36599-3

Quantum-dot micropillar lasers subject to coherent time-delayed optical feedback from a short external cavity

Steffen Holzinger, Christian Schneider, Sven Höfling, Xavier Porte, Stephan Reitzenstein

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

Abstract

We investigate the mode-switching dynamics of an electrically driven bimodal quantum-dot micropillar laser when subject to delayed coherent optical feedback from a short external cavity. We experimentally characterize how the external cavity length, being on the same order than the microlaser’s coherence length, influences the spectral and dynamical properties of the micropillar laser. Moreover, we determine the relaxation oscillation frequency of the micropillar by superimposing optical pulse injection to a dc current. It is found that the optical pulse can be used to disturb the feedback-coupled laser within one roundtrip time in such a way that it reaches the same output power as if no feedback was present. Our results do not only expand the understanding of microlasers when subject to optical feedback from short external cavities, but pave the way towards tailoring the properties of this key nanophotonic system for studies in the quantum regime of self-feedback and its implementation to integrated photonic circuits.

Original language	English
Article number	631
Number of pages	8
Journal	Scientific Reports
Volume	9
DOIs	https://doi.org/10.1038/s41598-018-36599-3
Publication status	Published - 24 Jan 2019

Keywords

Nanophotonics and plasmonics
Photonic devices
Quantum dots
Semiconductor lasers

Access to Document

10.1038/s41598-018-36599-3Licence: CC BY

Holzinger-2019-Quantum-dot-micropillar-SciRep-631-CC
Copyright the Authors 2019. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
Final published version, 1.51 MBLicence: CC BY

Cite this

@article{c6ad49ba0012429c994f5d5120d5173b,

title = "Quantum-dot micropillar lasers subject to coherent time-delayed optical feedback from a short external cavity",

abstract = "We investigate the mode-switching dynamics of an electrically driven bimodal quantum-dot micropillar laser when subject to delayed coherent optical feedback from a short external cavity. We experimentally characterize how the external cavity length, being on the same order than the microlaser{\textquoteright}s coherence length, influences the spectral and dynamical properties of the micropillar laser. Moreover, we determine the relaxation oscillation frequency of the micropillar by superimposing optical pulse injection to a dc current. It is found that the optical pulse can be used to disturb the feedback-coupled laser within one roundtrip time in such a way that it reaches the same output power as if no feedback was present. Our results do not only expand the understanding of microlasers when subject to optical feedback from short external cavities, but pave the way towards tailoring the properties of this key nanophotonic system for studies in the quantum regime of self-feedback and its implementation to integrated photonic circuits.",

keywords = "Nanophotonics and plasmonics, Photonic devices, Quantum dots, Semiconductor lasers",

author = "Steffen Holzinger and Christian Schneider and Sven H{\"o}fling and Xavier Porte and Stephan Reitzenstein",

note = "The research leading to these results has received funding from the European Research Council under the European Union{\textquoteright}s Seventh Framework ERC Grant Agreement No. 615613 and from the German Research Foundation via CRC 787.",

year = "2019",

month = jan,

day = "24",

doi = "10.1038/s41598-018-36599-3",

language = "English",

volume = "9",

journal = "Scientific Reports",

issn = "2045-2322",

publisher = "Nature publishing group",

}

TY - JOUR

T1 - Quantum-dot micropillar lasers subject to coherent time-delayed optical feedback from a short external cavity

AU - Holzinger, Steffen

AU - Schneider, Christian

AU - Höfling, Sven

AU - Porte, Xavier

AU - Reitzenstein, Stephan

N1 - The research leading to these results has received funding from the European Research Council under the European Union’s Seventh Framework ERC Grant Agreement No. 615613 and from the German Research Foundation via CRC 787.

PY - 2019/1/24

Y1 - 2019/1/24

N2 - We investigate the mode-switching dynamics of an electrically driven bimodal quantum-dot micropillar laser when subject to delayed coherent optical feedback from a short external cavity. We experimentally characterize how the external cavity length, being on the same order than the microlaser’s coherence length, influences the spectral and dynamical properties of the micropillar laser. Moreover, we determine the relaxation oscillation frequency of the micropillar by superimposing optical pulse injection to a dc current. It is found that the optical pulse can be used to disturb the feedback-coupled laser within one roundtrip time in such a way that it reaches the same output power as if no feedback was present. Our results do not only expand the understanding of microlasers when subject to optical feedback from short external cavities, but pave the way towards tailoring the properties of this key nanophotonic system for studies in the quantum regime of self-feedback and its implementation to integrated photonic circuits.

AB - We investigate the mode-switching dynamics of an electrically driven bimodal quantum-dot micropillar laser when subject to delayed coherent optical feedback from a short external cavity. We experimentally characterize how the external cavity length, being on the same order than the microlaser’s coherence length, influences the spectral and dynamical properties of the micropillar laser. Moreover, we determine the relaxation oscillation frequency of the micropillar by superimposing optical pulse injection to a dc current. It is found that the optical pulse can be used to disturb the feedback-coupled laser within one roundtrip time in such a way that it reaches the same output power as if no feedback was present. Our results do not only expand the understanding of microlasers when subject to optical feedback from short external cavities, but pave the way towards tailoring the properties of this key nanophotonic system for studies in the quantum regime of self-feedback and its implementation to integrated photonic circuits.

KW - Nanophotonics and plasmonics

KW - Photonic devices

KW - Quantum dots

KW - Semiconductor lasers

U2 - 10.1038/s41598-018-36599-3

DO - 10.1038/s41598-018-36599-3

M3 - Article

SN - 2045-2322

VL - 9

JO - Scientific Reports

JF - Scientific Reports

M1 - 631

ER -

Quantum-dot micropillar lasers subject to coherent time-delayed optical feedback from a short external cavity

Abstract

Keywords

Access to Document

Fingerprint

Cite this