Measurement of the emission spectrum of a semiconductor laser using laser-feedback interferometry

Abstract The effects of optical feedback (OF) in lasers have been observed since the early days of laser development. While OF can result in undesirable and unpredictable operation in laser systems, it can also cause measurable perturbations to the operating parameters, which can be harnessed for me...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	James Keeley, Joshua Freeman, Karl Bertling, Yah Leng Lim, Reshma A. Mohandas, Thomas Taimre, Lianhe H. Li, Dragan Indjin, Aleksandar D. Rakić, Edmund H. Linfield, A. Giles Davies, Paul Dean
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Quantum Cascade Lasers (QCL) Optical Feedback (OF) Individual Laser Modes Perturbation Frequency Multiple Longitudinal Modes Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ecda9f8dc1b540f7bd7e36d99daa0d79
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:ecda9f8dc1b540f7bd7e36d99daa0d79
record_format	dspace
spelling	oai:doaj.org-article:ecda9f8dc1b540f7bd7e36d99daa0d792021-12-02T15:04:54ZMeasurement of the emission spectrum of a semiconductor laser using laser-feedback interferometry10.1038/s41598-017-07432-02045-2322https://doaj.org/article/ecda9f8dc1b540f7bd7e36d99daa0d792017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07432-0https://doaj.org/toc/2045-2322Abstract The effects of optical feedback (OF) in lasers have been observed since the early days of laser development. While OF can result in undesirable and unpredictable operation in laser systems, it can also cause measurable perturbations to the operating parameters, which can be harnessed for metrological purposes. In this work we exploit this ‘self-mixing’ effect to infer the emission spectrum of a semiconductor laser using a laser-feedback interferometer, in which the terminal voltage of the laser is used to coherently sample the reinjected field. We demonstrate this approach using a terahertz frequency quantum cascade laser operating in both single- and multiple-longitudinal mode regimes, and are able to resolve spectral features not reliably resolved using traditional Fourier transform spectroscopy. We also investigate quantitatively the frequency perturbation of individual laser modes under OF, and find excellent agreement with predictions of the excess phase equation central to the theory of lasers under OF.James KeeleyJoshua FreemanKarl BertlingYah Leng LimReshma A. MohandasThomas TaimreLianhe H. LiDragan IndjinAleksandar D. RakićEdmund H. LinfieldA. Giles DaviesPaul DeanNature PortfolioarticleQuantum Cascade Lasers (QCL)Optical Feedback (OF)Individual Laser ModesPerturbation FrequencyMultiple Longitudinal ModesMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Quantum Cascade Lasers (QCL) Optical Feedback (OF) Individual Laser Modes Perturbation Frequency Multiple Longitudinal Modes Medicine R Science Q
spellingShingle	Quantum Cascade Lasers (QCL) Optical Feedback (OF) Individual Laser Modes Perturbation Frequency Multiple Longitudinal Modes Medicine R Science Q James Keeley Joshua Freeman Karl Bertling Yah Leng Lim Reshma A. Mohandas Thomas Taimre Lianhe H. Li Dragan Indjin Aleksandar D. Rakić Edmund H. Linfield A. Giles Davies Paul Dean Measurement of the emission spectrum of a semiconductor laser using laser-feedback interferometry
description	Abstract The effects of optical feedback (OF) in lasers have been observed since the early days of laser development. While OF can result in undesirable and unpredictable operation in laser systems, it can also cause measurable perturbations to the operating parameters, which can be harnessed for metrological purposes. In this work we exploit this ‘self-mixing’ effect to infer the emission spectrum of a semiconductor laser using a laser-feedback interferometer, in which the terminal voltage of the laser is used to coherently sample the reinjected field. We demonstrate this approach using a terahertz frequency quantum cascade laser operating in both single- and multiple-longitudinal mode regimes, and are able to resolve spectral features not reliably resolved using traditional Fourier transform spectroscopy. We also investigate quantitatively the frequency perturbation of individual laser modes under OF, and find excellent agreement with predictions of the excess phase equation central to the theory of lasers under OF.
format	article
author	James Keeley Joshua Freeman Karl Bertling Yah Leng Lim Reshma A. Mohandas Thomas Taimre Lianhe H. Li Dragan Indjin Aleksandar D. Rakić Edmund H. Linfield A. Giles Davies Paul Dean
author_facet	James Keeley Joshua Freeman Karl Bertling Yah Leng Lim Reshma A. Mohandas Thomas Taimre Lianhe H. Li Dragan Indjin Aleksandar D. Rakić Edmund H. Linfield A. Giles Davies Paul Dean
author_sort	James Keeley
title	Measurement of the emission spectrum of a semiconductor laser using laser-feedback interferometry
title_short	Measurement of the emission spectrum of a semiconductor laser using laser-feedback interferometry
title_full	Measurement of the emission spectrum of a semiconductor laser using laser-feedback interferometry
title_fullStr	Measurement of the emission spectrum of a semiconductor laser using laser-feedback interferometry
title_full_unstemmed	Measurement of the emission spectrum of a semiconductor laser using laser-feedback interferometry
title_sort	measurement of the emission spectrum of a semiconductor laser using laser-feedback interferometry
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/ecda9f8dc1b540f7bd7e36d99daa0d79
work_keys_str_mv	AT jameskeeley measurementoftheemissionspectrumofasemiconductorlaserusinglaserfeedbackinterferometry AT joshuafreeman measurementoftheemissionspectrumofasemiconductorlaserusinglaserfeedbackinterferometry AT karlbertling measurementoftheemissionspectrumofasemiconductorlaserusinglaserfeedbackinterferometry AT yahlenglim measurementoftheemissionspectrumofasemiconductorlaserusinglaserfeedbackinterferometry AT reshmaamohandas measurementoftheemissionspectrumofasemiconductorlaserusinglaserfeedbackinterferometry AT thomastaimre measurementoftheemissionspectrumofasemiconductorlaserusinglaserfeedbackinterferometry AT lianhehli measurementoftheemissionspectrumofasemiconductorlaserusinglaserfeedbackinterferometry AT draganindjin measurementoftheemissionspectrumofasemiconductorlaserusinglaserfeedbackinterferometry AT aleksandardrakic measurementoftheemissionspectrumofasemiconductorlaserusinglaserfeedbackinterferometry AT edmundhlinfield measurementoftheemissionspectrumofasemiconductorlaserusinglaserfeedbackinterferometry AT agilesdavies measurementoftheemissionspectrumofasemiconductorlaserusinglaserfeedbackinterferometry AT pauldean measurementoftheemissionspectrumofasemiconductorlaserusinglaserfeedbackinterferometry
_version_	1718389052111060992

Measurement of the emission spectrum of a semiconductor laser using laser-feedback interferometry

Ejemplares similares