Second-harmonic-generation-based technique for examining laser diode wavelength dynamics in the mu s to ms range

Mathias Christensen*, Anders Kragh Hansen, Danny Noordegraaf, Peter M. W. Skovgaard, Ole Bjarlin Jensen

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

Wavelength information is essential for any researcher in optics and photonics, and for this reason, a wide range of devices is available for measuring it. However, the techniques available today are limited either to a resolution of nanometers or a measurement rate of kHz. In this paper, we present a simple but highly versatile technique based on second-harmonic generation to measure fast wavelength dynamics of laser diodes. We demonstrate a resolution of 0.7 pm and a measurement rate in the MHz range. The measurement rate is limited only by the photodetector, and the wavelength resolution is limited mainly by the length of the nonlinear crystal and the noise of the detectors. The technique can, e.g., be used to investigate the mode-hop behavior of laser diodes during pulsed operation. To demonstrate this, we show the wavelength changes of a laser diode during a single pulse. (c) 2018 Optical Society of America
Original languageEnglish
JournalApplied Optics
Volume57
Issue number6
Pages (from-to)1432-1436
ISSN1559-128X
DOIs
Publication statusPublished - 2018

Keywords

  • Atomic and Molecular Physics, and Optics
  • Diodes
  • Harmonic generation
  • Nonlinear optics
  • Semiconductor lasers
  • Nonlinear crystals
  • Pulsed operation
  • Single pulse
  • Wavelength change
  • Wavelength resolution
  • Pulsed lasers
  • Nonlinear Optics
  • Lasers, General
  • Semiconductor Lasers

Cite this

Christensen, Mathias ; Hansen, Anders Kragh ; Noordegraaf, Danny ; Skovgaard, Peter M. W. ; Jensen, Ole Bjarlin. / Second-harmonic-generation-based technique for examining laser diode wavelength dynamics in the mu s to ms range. In: Applied Optics. 2018 ; Vol. 57, No. 6. pp. 1432-1436.
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abstract = "Wavelength information is essential for any researcher in optics and photonics, and for this reason, a wide range of devices is available for measuring it. However, the techniques available today are limited either to a resolution of nanometers or a measurement rate of kHz. In this paper, we present a simple but highly versatile technique based on second-harmonic generation to measure fast wavelength dynamics of laser diodes. We demonstrate a resolution of 0.7 pm and a measurement rate in the MHz range. The measurement rate is limited only by the photodetector, and the wavelength resolution is limited mainly by the length of the nonlinear crystal and the noise of the detectors. The technique can, e.g., be used to investigate the mode-hop behavior of laser diodes during pulsed operation. To demonstrate this, we show the wavelength changes of a laser diode during a single pulse. (c) 2018 Optical Society of America",
keywords = "Atomic and Molecular Physics, and Optics, Diodes, Harmonic generation, Nonlinear optics, Semiconductor lasers, Nonlinear crystals, Pulsed operation, Single pulse, Wavelength change, Wavelength resolution, Pulsed lasers, Nonlinear Optics, Lasers, General, Semiconductor Lasers",
author = "Mathias Christensen and Hansen, {Anders Kragh} and Danny Noordegraaf and Skovgaard, {Peter M. W.} and Jensen, {Ole Bjarlin}",
year = "2018",
doi = "10.1364/AO.57.001432",
language = "English",
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journal = "Applied Optics",
issn = "1559-128X",
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Second-harmonic-generation-based technique for examining laser diode wavelength dynamics in the mu s to ms range. / Christensen, Mathias; Hansen, Anders Kragh; Noordegraaf, Danny; Skovgaard, Peter M. W.; Jensen, Ole Bjarlin.

In: Applied Optics, Vol. 57, No. 6, 2018, p. 1432-1436.

Research output: Contribution to journalJournal articleResearchpeer-review

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T1 - Second-harmonic-generation-based technique for examining laser diode wavelength dynamics in the mu s to ms range

AU - Christensen, Mathias

AU - Hansen, Anders Kragh

AU - Noordegraaf, Danny

AU - Skovgaard, Peter M. W.

AU - Jensen, Ole Bjarlin

PY - 2018

Y1 - 2018

N2 - Wavelength information is essential for any researcher in optics and photonics, and for this reason, a wide range of devices is available for measuring it. However, the techniques available today are limited either to a resolution of nanometers or a measurement rate of kHz. In this paper, we present a simple but highly versatile technique based on second-harmonic generation to measure fast wavelength dynamics of laser diodes. We demonstrate a resolution of 0.7 pm and a measurement rate in the MHz range. The measurement rate is limited only by the photodetector, and the wavelength resolution is limited mainly by the length of the nonlinear crystal and the noise of the detectors. The technique can, e.g., be used to investigate the mode-hop behavior of laser diodes during pulsed operation. To demonstrate this, we show the wavelength changes of a laser diode during a single pulse. (c) 2018 Optical Society of America

AB - Wavelength information is essential for any researcher in optics and photonics, and for this reason, a wide range of devices is available for measuring it. However, the techniques available today are limited either to a resolution of nanometers or a measurement rate of kHz. In this paper, we present a simple but highly versatile technique based on second-harmonic generation to measure fast wavelength dynamics of laser diodes. We demonstrate a resolution of 0.7 pm and a measurement rate in the MHz range. The measurement rate is limited only by the photodetector, and the wavelength resolution is limited mainly by the length of the nonlinear crystal and the noise of the detectors. The technique can, e.g., be used to investigate the mode-hop behavior of laser diodes during pulsed operation. To demonstrate this, we show the wavelength changes of a laser diode during a single pulse. (c) 2018 Optical Society of America

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KW - Harmonic generation

KW - Nonlinear optics

KW - Semiconductor lasers

KW - Nonlinear crystals

KW - Pulsed operation

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KW - Wavelength change

KW - Wavelength resolution

KW - Pulsed lasers

KW - Nonlinear Optics

KW - Lasers, General

KW - Semiconductor Lasers

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