Measurement of the optical phase statistics of single-mode semiconductor lasers biased around the threshold current

We report on the experimental analysis of the statistics of the optical phase of the light emitted by a distributed-feedback (DFB) laser. We measure the dependence of the phase diffusion coefficient on the applied bias current in the region around the threshold current. We measure the phase noise st...

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Autores: Valle Gutiérrez, Ángel|||0000-0002-3307-5485, Rosado, A., Soldevilla, G., Esquivias, I.
Tipo de recurso: artículo
Fecha de publicación:2025
País:España
Institución:Universidad de Cantabria (UC)
Repositorio:UCrea Repositorio Abierto de la Universidad de Cantabria
Idioma:inglés
OAI Identifier:oai:repositorio.unican.es:10902/38385
Acceso en línea:https://hdl.handle.net/10902/38385
Access Level:acceso abierto
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repository_id_str
spelling Measurement of the optical phase statistics of single-mode semiconductor lasers biased around the threshold currentValle Gutiérrez, Ángel|||0000-0002-3307-5485Rosado, A.Soldevilla, G.Esquivias, I.We report on the experimental analysis of the statistics of the optical phase of the light emitted by a distributed-feedback (DFB) laser. We measure the dependence of the phase diffusion coefficient on the applied bias current in the region around the threshold current. We measure the phase noise statistics using three different methods based on i) averages of the noise phase trajectories over different temporal windows, ii) the variance of the phase noise difference, and iii) the frequency noise spectral density. The comparison between the results obtained with these methods is succesful. We obtain that the phase diffusion coefficient monotonously decreases with the bias current in the region around threshold. We finally compare our experimental results with simple analytical expressions for the below and above threshold cases based on Schawlow-Townes laws.Ministerio de Ciencia, Innovación y Universidades (PID2021-123459OB-C21MCIN/AEI/10.13039/501100011033, PID2021-123459OB-C22,MCIN/AEI/FEDER,UE, TED2021-131957B-100MCIN/AEI/10.13039/501100011033).Optica Publishing GroupUniversidad de Cantabria20252025-11-01journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articlehttps://hdl.handle.net/10902/38385Optics Express, 2025, 33(23), 48676-48687reponame:UCrea Repositorio Abierto de la Universidad de Cantabriainstname:Universidad de Cantabria (UC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.unican.es:10902/383852026-06-02T12:39:31Z
dc.title.none.fl_str_mv Measurement of the optical phase statistics of single-mode semiconductor lasers biased around the threshold current
title Measurement of the optical phase statistics of single-mode semiconductor lasers biased around the threshold current
spellingShingle Measurement of the optical phase statistics of single-mode semiconductor lasers biased around the threshold current
Valle Gutiérrez, Ángel|||0000-0002-3307-5485
title_short Measurement of the optical phase statistics of single-mode semiconductor lasers biased around the threshold current
title_full Measurement of the optical phase statistics of single-mode semiconductor lasers biased around the threshold current
title_fullStr Measurement of the optical phase statistics of single-mode semiconductor lasers biased around the threshold current
title_full_unstemmed Measurement of the optical phase statistics of single-mode semiconductor lasers biased around the threshold current
title_sort Measurement of the optical phase statistics of single-mode semiconductor lasers biased around the threshold current
dc.creator.none.fl_str_mv Valle Gutiérrez, Ángel|||0000-0002-3307-5485
Rosado, A.
Soldevilla, G.
Esquivias, I.
author Valle Gutiérrez, Ángel|||0000-0002-3307-5485
author_facet Valle Gutiérrez, Ángel|||0000-0002-3307-5485
Rosado, A.
Soldevilla, G.
Esquivias, I.
author_role author
author2 Rosado, A.
Soldevilla, G.
Esquivias, I.
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidad de Cantabria
description We report on the experimental analysis of the statistics of the optical phase of the light emitted by a distributed-feedback (DFB) laser. We measure the dependence of the phase diffusion coefficient on the applied bias current in the region around the threshold current. We measure the phase noise statistics using three different methods based on i) averages of the noise phase trajectories over different temporal windows, ii) the variance of the phase noise difference, and iii) the frequency noise spectral density. The comparison between the results obtained with these methods is succesful. We obtain that the phase diffusion coefficient monotonously decreases with the bias current in the region around threshold. We finally compare our experimental results with simple analytical expressions for the below and above threshold cases based on Schawlow-Townes laws.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025-11-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10902/38385
url https://hdl.handle.net/10902/38385
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Optica Publishing Group
publisher.none.fl_str_mv Optica Publishing Group
dc.source.none.fl_str_mv Optics Express, 2025, 33(23), 48676-48687
reponame:UCrea Repositorio Abierto de la Universidad de Cantabria
instname:Universidad de Cantabria (UC)
instname_str Universidad de Cantabria (UC)
reponame_str UCrea Repositorio Abierto de la Universidad de Cantabria
collection UCrea Repositorio Abierto de la Universidad de Cantabria
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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