Order of magnitude improvement in feedback stability of nanolasers by inclusion of a fano resonance-based mirror

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

Due to the extraordinary sensitivity of semiconductor lasers to external optical feedback [1,2], optical isolators are necessary for stable operation in most applications. This is a critical issue for the use of semiconductor nanolasers as light sources in photonic integrated circuits for e.g. on-chip optical signal processing, where optical isolators are notoriously difficult to incorporate, so recently a number of ideas for solutions to this problem have been proposed [3,4]. Here we demonstrate that the recently realised [5] photonic crystal Fano laser (FL) may intrinsically be exceedingly stable towards external feedback, improving upon conventional nanolasers by orders of magnitude. Figure 1 (top right) shows a schematic of the Fano laser, in which one laser mirror is realised by Fano interference between a continuum of modes in a line-defect waveguide and a discrete mode in a nearby side-coupled nanocavity. This interference yields a narrow, highly dispersive reflection, which, when combined with a termination of the waveguide at one end, yields a laser cavity. The Fano laser showed a number of remarkable properties, including pinned single-mode lasing and the first demonstration of self-pulsing in a microscopic laser [5]. In this work we study the behaviour of the Fano laser when subjected to external optical feedback, using a generalised version of the conventional Lang-Kobayashi model which also accounts for the field stored in the nanocavity, and compare the results to those of a conventional Fabry-Perot (FP) laser.

Original languageEnglish
Title of host publicationProceedings of 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference
PublisherIEEE
Publication date1 Jun 2019
Article number8871768
ISBN (Electronic)9781728104690
DOIs
Publication statusPublished - 1 Jun 2019
Event2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference - Munich, Germany
Duration: 23 Jun 201927 Jun 2019

Conference

Conference2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference
CountryGermany
CityMunich
Period23/06/201927/06/2019
SponsorEPS Young Minds, Quantum Electronics and Optics Division
Series2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019

Cite this

Rasmussen, T. S., & Mørk, J. (2019). Order of magnitude improvement in feedback stability of nanolasers by inclusion of a fano resonance-based mirror. In Proceedings of 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference [8871768] IEEE. 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019 https://doi.org/10.1109/CLEOE-EQEC.2019.8871768
Rasmussen, Thorsten S. ; Mørk, Jesper. / Order of magnitude improvement in feedback stability of nanolasers by inclusion of a fano resonance-based mirror. Proceedings of 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference. IEEE, 2019. (2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019).
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abstract = "Due to the extraordinary sensitivity of semiconductor lasers to external optical feedback [1,2], optical isolators are necessary for stable operation in most applications. This is a critical issue for the use of semiconductor nanolasers as light sources in photonic integrated circuits for e.g. on-chip optical signal processing, where optical isolators are notoriously difficult to incorporate, so recently a number of ideas for solutions to this problem have been proposed [3,4]. Here we demonstrate that the recently realised [5] photonic crystal Fano laser (FL) may intrinsically be exceedingly stable towards external feedback, improving upon conventional nanolasers by orders of magnitude. Figure 1 (top right) shows a schematic of the Fano laser, in which one laser mirror is realised by Fano interference between a continuum of modes in a line-defect waveguide and a discrete mode in a nearby side-coupled nanocavity. This interference yields a narrow, highly dispersive reflection, which, when combined with a termination of the waveguide at one end, yields a laser cavity. The Fano laser showed a number of remarkable properties, including pinned single-mode lasing and the first demonstration of self-pulsing in a microscopic laser [5]. In this work we study the behaviour of the Fano laser when subjected to external optical feedback, using a generalised version of the conventional Lang-Kobayashi model which also accounts for the field stored in the nanocavity, and compare the results to those of a conventional Fabry-Perot (FP) laser.",
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Rasmussen, TS & Mørk, J 2019, Order of magnitude improvement in feedback stability of nanolasers by inclusion of a fano resonance-based mirror. in Proceedings of 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference., 8871768, IEEE, 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019, 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, Munich, Germany, 23/06/2019. https://doi.org/10.1109/CLEOE-EQEC.2019.8871768

Order of magnitude improvement in feedback stability of nanolasers by inclusion of a fano resonance-based mirror. / Rasmussen, Thorsten S.; Mørk, Jesper.

Proceedings of 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference. IEEE, 2019. 8871768 (2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019).

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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AB - Due to the extraordinary sensitivity of semiconductor lasers to external optical feedback [1,2], optical isolators are necessary for stable operation in most applications. This is a critical issue for the use of semiconductor nanolasers as light sources in photonic integrated circuits for e.g. on-chip optical signal processing, where optical isolators are notoriously difficult to incorporate, so recently a number of ideas for solutions to this problem have been proposed [3,4]. Here we demonstrate that the recently realised [5] photonic crystal Fano laser (FL) may intrinsically be exceedingly stable towards external feedback, improving upon conventional nanolasers by orders of magnitude. Figure 1 (top right) shows a schematic of the Fano laser, in which one laser mirror is realised by Fano interference between a continuum of modes in a line-defect waveguide and a discrete mode in a nearby side-coupled nanocavity. This interference yields a narrow, highly dispersive reflection, which, when combined with a termination of the waveguide at one end, yields a laser cavity. The Fano laser showed a number of remarkable properties, including pinned single-mode lasing and the first demonstration of self-pulsing in a microscopic laser [5]. In this work we study the behaviour of the Fano laser when subjected to external optical feedback, using a generalised version of the conventional Lang-Kobayashi model which also accounts for the field stored in the nanocavity, and compare the results to those of a conventional Fabry-Perot (FP) laser.

U2 - 10.1109/CLEOE-EQEC.2019.8871768

DO - 10.1109/CLEOE-EQEC.2019.8871768

M3 - Article in proceedings

BT - Proceedings of 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference

PB - IEEE

ER -

Rasmussen TS, Mørk J. Order of magnitude improvement in feedback stability of nanolasers by inclusion of a fano resonance-based mirror. In Proceedings of 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference. IEEE. 2019. 8871768. (2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019). https://doi.org/10.1109/CLEOE-EQEC.2019.8871768