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Quantum control of phase fluctuations in semiconductor lasers

Few laser systems allow access to the light–emitter interaction as versatile and direct as that afforded by semiconductor lasers. Such a level of access can be exploited for the control of the coherence and dynamic properties of the laser. Here, we demonstrate, theoretically and experimentally, the...

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Autores principales: Santis, Christos T., Vilenchik, Yaakov, Satyan, Naresh, Rakuljic, George, Yariv, Amnon
Formato: Online Artículo Texto
Lenguaje:English
Publicado: National Academy of Sciences 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6112747/
https://www.ncbi.nlm.nih.gov/pubmed/30087187
http://dx.doi.org/10.1073/pnas.1806716115
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author Santis, Christos T.
Vilenchik, Yaakov
Satyan, Naresh
Rakuljic, George
Yariv, Amnon
author_facet Santis, Christos T.
Vilenchik, Yaakov
Satyan, Naresh
Rakuljic, George
Yariv, Amnon
author_sort Santis, Christos T.
collection PubMed
description Few laser systems allow access to the light–emitter interaction as versatile and direct as that afforded by semiconductor lasers. Such a level of access can be exploited for the control of the coherence and dynamic properties of the laser. Here, we demonstrate, theoretically and experimentally, the reduction of the quantum phase noise of a semiconductor laser through the direct control of the spontaneous emission into the laser mode, exercised via the precise and deterministic manipulation of the optical mode’s spatial field distribution. Central to the approach is the recognition of the intimate interplay between spontaneous emission and optical loss. A method of leveraging and “walking” this fine balance to its limit is described. As a result, some two orders of magnitude reduction in quantum noise over the state of the art in semiconductor lasers, corresponding to a minimum linewidth of [Formula: see text] , is demonstrated. Further implications, including an additional order-of-magnitude enhancement in effective coherence by way of control of the relaxation oscillation resonance frequency and enhancement of the intrinsic immunity to optical feedback, highlight the potential of the proposed concept for next-generation, integrated coherent systems.
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spelling pubmed-61127472018-08-29 Quantum control of phase fluctuations in semiconductor lasers Santis, Christos T. Vilenchik, Yaakov Satyan, Naresh Rakuljic, George Yariv, Amnon Proc Natl Acad Sci U S A PNAS Plus Few laser systems allow access to the light–emitter interaction as versatile and direct as that afforded by semiconductor lasers. Such a level of access can be exploited for the control of the coherence and dynamic properties of the laser. Here, we demonstrate, theoretically and experimentally, the reduction of the quantum phase noise of a semiconductor laser through the direct control of the spontaneous emission into the laser mode, exercised via the precise and deterministic manipulation of the optical mode’s spatial field distribution. Central to the approach is the recognition of the intimate interplay between spontaneous emission and optical loss. A method of leveraging and “walking” this fine balance to its limit is described. As a result, some two orders of magnitude reduction in quantum noise over the state of the art in semiconductor lasers, corresponding to a minimum linewidth of [Formula: see text] , is demonstrated. Further implications, including an additional order-of-magnitude enhancement in effective coherence by way of control of the relaxation oscillation resonance frequency and enhancement of the intrinsic immunity to optical feedback, highlight the potential of the proposed concept for next-generation, integrated coherent systems. National Academy of Sciences 2018-08-21 2018-08-07 /pmc/articles/PMC6112747/ /pubmed/30087187 http://dx.doi.org/10.1073/pnas.1806716115 Text en Copyright © 2018 the Author(s). Published by PNAS. https://creativecommons.org/licenses/by-nc-nd/4.0/ This open access article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND) (https://creativecommons.org/licenses/by-nc-nd/4.0/) .
spellingShingle PNAS Plus
Santis, Christos T.
Vilenchik, Yaakov
Satyan, Naresh
Rakuljic, George
Yariv, Amnon
Quantum control of phase fluctuations in semiconductor lasers
title Quantum control of phase fluctuations in semiconductor lasers
title_full Quantum control of phase fluctuations in semiconductor lasers
title_fullStr Quantum control of phase fluctuations in semiconductor lasers
title_full_unstemmed Quantum control of phase fluctuations in semiconductor lasers
title_short Quantum control of phase fluctuations in semiconductor lasers
title_sort quantum control of phase fluctuations in semiconductor lasers
topic PNAS Plus
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6112747/
https://www.ncbi.nlm.nih.gov/pubmed/30087187
http://dx.doi.org/10.1073/pnas.1806716115
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