December 14, 2020
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Article

Gain-switched semiconductor lasers with pulsed excitation and optical injection for dual-comb spectroscopy

Publicated to: OPTICS EXPRESS. 28 (22): 33307-33317 - 2020-10-26 28(22), DOI: 10.1364/OE.404398

Authors:

Quevedo-Galán, C; Durán, ; Rosado, A; Pérez-Serrano, A; Tijero, JMG; Esquivias,
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Affiliations

Univ Jaume 1, GROC UJI, Inst New Imaging Technol INIT, Castellon de La Plana 12071, Spain - Author
Univ Politecn Madrid UPM, CEMDATIC ETSI Telecomun, E-28040 Madrid, Spain - Author

Abstract

In this work we demonstrate the capability of two gain-switched optically injected semiconductor lasers to perform high-resolution dual-comb spectroscopy. The use of low duty cycle pulse trains to gain switch the lasers, combined with optical injection, allows us to obtain flat-topped optical frequency combs with 350 optical lines (within 10 dB) spaced by 100 MHz. These frequency combs significantly improve the spectral resolution reported so far on dual-comb spectroscopy with gain-switched laser diodes. We evaluate the performance of our system by measuring the transmission profile of an absorption line of (HCN)-C-13 at the C-band, analyzing the attainable signal-to-noise ratio for a range of averaging times. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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Keywords

Broad-bandFrequencyGenerationHigh-resolutionInterferometryPhase-control

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal OPTICS EXPRESS due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2020, it was in position 20/99, thus managing to position itself as a Q1 (Primer Cuartil), in the category Optics.

From a relative perspective, and based on the normalized impact indicator calculated from World Citations provided by WoS (ESI, Clarivate), it yields a value for the citation normalization relative to the expected citation rate of: 1.92. This indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: ESI Nov 13, 2025)

This information is reinforced by other indicators of the same type, which, although dynamic over time and dependent on the set of average global citations at the time of their calculation, consistently position the work at some point among the top 50% most cited in its field:

  • Weighted Average of Normalized Impact by the Scopus agency: 2.01 (source consulted: FECYT Mar 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2026-04-26, the following number of citations:

  • WoS: 28
  • Scopus: 36
  • Europe PMC: 1
  • Google Scholar: 30
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Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2026-04-26:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 18 (PlumX).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
  • Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: https://oa.upm.es/85454/

As a result of the publication of the work in the institutional repository, statistical usage data has been obtained that reflects its impact. In terms of dissemination, we can state that, as of

  • Views: 151
  • Downloads: 23
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Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (QUEVEDO GALAN, CLARA) and Last Author (ESQUIVIAS MOSCARDO, IGNACIO).

the author responsible for correspondence tasks has been QUEVEDO GALAN, CLARA.

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Awards linked to the item

European Regional Development Fund/Ministerio de Economia y Competitividad Agencia Estatal de Investigacion (RTI2018-094118-B-C21, RYC-2017-23668); Universitat Jaume I (UJI-B2019-45); Generalitat Valenciana (PROMETEO/2020/029); European Regional Development Fund/Comunidad de Madrid (P2018/NMT-4326); Comunidad de Madrid/Universidad Politecnica de Madrid (APOYO-JOVENES-KXHJ8C-16-VCKM78).
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