Influence of grating parameters on the performance of an ECDL emitting in the blue spectral region

Khaled Gasmi; Abdulaziz Aljalal; Watheq Al-Basheer

doi:10.1117/12.3051928

Influence of grating parameters on the performance of an ECDL emitting in the blue spectral region

Khaled Gasmi, Abdulaziz Aljalal, Watheq Al-Basheer

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The influence of the grating type (holographic or ruled), resolution, and polarization on the performance of an external cavity diode laser (ECDL) emitting in the blue spectral region are investigated. The single mode ECDL is designed in Littrow configuration and uses an uncoated low-power GaN Fabry-Perot (FP) laser diode, which forms the gain medium. The emitted Fabry-Perot laser diode beam, which is TE-polarized in the plane of the p-n junction, after collimation, is directed incident on the grating. The frequency-selective element, which is used for longitudinal mode selection, is placed outside the FP laser diode cavity to form the extended cavity laser diode. The first-order diffraction is reflected directly into the FP laser diode, while the zero-order is the output from the ECDL. The preliminary results about slope efficiency, output power, power stability, tuning range, and linewidth of the blue ECDL using different gratings with different resolutions and orientations are shown.

Original language	English
Title of host publication	Optical Sensors 2025
Editors	Francesco Baldini, Jiri Homola, Robert A. Lieberman
Publisher	SPIE
ISBN (Electronic)	9781510688506
DOIs	https://doi.org/10.1117/12.3051928
State	Published - 2025
Event	Optical Sensors 2025 - Prague, Czech Republic Duration: 7 Apr 2025 → 10 Apr 2025

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	13527
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Optical Sensors 2025
Country/Territory	Czech Republic
City	Prague
Period	7/04/25 → 10/04/25

Bibliographical note

Publisher Copyright:
© 2025 SPIE. All rights reserved.

Keywords

external cavity diode laser
Fabry-Perot laser diode
holographic grating
Littrow configuration
ruled grating

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.3051928

Cite this

@inproceedings{4235fe28974c42e982b2f577ae37ff9e,

title = "Influence of grating parameters on the performance of an ECDL emitting in the blue spectral region",

abstract = "The influence of the grating type (holographic or ruled), resolution, and polarization on the performance of an external cavity diode laser (ECDL) emitting in the blue spectral region are investigated. The single mode ECDL is designed in Littrow configuration and uses an uncoated low-power GaN Fabry-Perot (FP) laser diode, which forms the gain medium. The emitted Fabry-Perot laser diode beam, which is TE-polarized in the plane of the p-n junction, after collimation, is directed incident on the grating. The frequency-selective element, which is used for longitudinal mode selection, is placed outside the FP laser diode cavity to form the extended cavity laser diode. The first-order diffraction is reflected directly into the FP laser diode, while the zero-order is the output from the ECDL. The preliminary results about slope efficiency, output power, power stability, tuning range, and linewidth of the blue ECDL using different gratings with different resolutions and orientations are shown.",

keywords = "external cavity diode laser, Fabry-Perot laser diode, holographic grating, Littrow configuration, ruled grating",

author = "Khaled Gasmi and Abdulaziz Aljalal and Watheq Al-Basheer",

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doi = "10.1117/12.3051928",

language = "English",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

publisher = "SPIE",

editor = "Francesco Baldini and Jiri Homola and Lieberman, \{Robert A.\}",

booktitle = "Optical Sensors 2025",

address = "United States",

}

Gasmi, K , Aljalal, A & Al-Basheer, W 2025, Influence of grating parameters on the performance of an ECDL emitting in the blue spectral region. in F Baldini, J Homola & RA Lieberman (eds), Optical Sensors 2025., 135270O, Proceedings of SPIE - The International Society for Optical Engineering, vol. 13527, SPIE, Optical Sensors 2025, Prague, Czech Republic, 7/04/25. https://doi.org/10.1117/12.3051928

Influence of grating parameters on the performance of an ECDL emitting in the blue spectral region. / Gasmi, Khaled ; Aljalal, Abdulaziz ; Al-Basheer, Watheq.
Optical Sensors 2025. ed. / Francesco Baldini; Jiri Homola; Robert A. Lieberman. SPIE, 2025. 135270O (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 13527).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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N2 - The influence of the grating type (holographic or ruled), resolution, and polarization on the performance of an external cavity diode laser (ECDL) emitting in the blue spectral region are investigated. The single mode ECDL is designed in Littrow configuration and uses an uncoated low-power GaN Fabry-Perot (FP) laser diode, which forms the gain medium. The emitted Fabry-Perot laser diode beam, which is TE-polarized in the plane of the p-n junction, after collimation, is directed incident on the grating. The frequency-selective element, which is used for longitudinal mode selection, is placed outside the FP laser diode cavity to form the extended cavity laser diode. The first-order diffraction is reflected directly into the FP laser diode, while the zero-order is the output from the ECDL. The preliminary results about slope efficiency, output power, power stability, tuning range, and linewidth of the blue ECDL using different gratings with different resolutions and orientations are shown.

AB - The influence of the grating type (holographic or ruled), resolution, and polarization on the performance of an external cavity diode laser (ECDL) emitting in the blue spectral region are investigated. The single mode ECDL is designed in Littrow configuration and uses an uncoated low-power GaN Fabry-Perot (FP) laser diode, which forms the gain medium. The emitted Fabry-Perot laser diode beam, which is TE-polarized in the plane of the p-n junction, after collimation, is directed incident on the grating. The frequency-selective element, which is used for longitudinal mode selection, is placed outside the FP laser diode cavity to form the extended cavity laser diode. The first-order diffraction is reflected directly into the FP laser diode, while the zero-order is the output from the ECDL. The preliminary results about slope efficiency, output power, power stability, tuning range, and linewidth of the blue ECDL using different gratings with different resolutions and orientations are shown.

KW - external cavity diode laser

KW - Fabry-Perot laser diode

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KW - Littrow configuration

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Influence of grating parameters on the performance of an ECDL emitting in the blue spectral region

Abstract

Publication series

Conference

Bibliographical note

Keywords

ASJC Scopus subject areas

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