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Resonator-enhanced distributed Bragg reflector lasers [PDF]

open access: yesLight: Science & Applications
Narrow-linewidth lasers are pivotal components for advanced optical communications, precision metrology, and microwave photonics. The drive towards low-cost, high-volume manufacturing has fueled intense interest in integrated platforms for high-coherence
Di Yu   +7 more
doaj   +2 more sources

THE INFLUENCE OF A RESIDUAL REFLECTIVITY AT THE FRONT FACET OF A MULTISECTION MASTER-OSCILLATOR POWER-AMPLIFIER [PDF]

open access: yesJournal of Engineering Science (Chişinău), 2022
This paper reports on the theoretical end experimental investigation of the output characteristics of a multisection master-oscillator power-amplifier (MOPA).
GRIGORIEV, Eugeniu   +3 more
doaj   +1 more source

Developing Online Learning Assessment Instrument for English Sentence Structure Course during Covid-19 Pandemic

open access: yesLangkawi: Journal of The Association for Arabic and English, 2021
Anchored by the need for constructing an online assessment which is mediated by honesty as the character value for grammar mastery among undergraduate students during Covid-19 pandemic, in the present study we developed a test of English Sentence ...
Emy Sudarwati   +3 more
doaj   +1 more source

51-nm Uniform-Intensity Tuning of Superstructure Grating Active-DBR Laser for 2-μm Wavelength Band

open access: yesIEEE Photonics Journal, 2022
To suppress the fluctuation of light intensity during wavelength tuning caused by carrier induced optical loss, we utilized a single quantum well (SQW) inserted into the bulk core layer of distributed Bragg reflectors (DBRs), called an active DBR ...
Takahiko Shindo   +7 more
doaj   +1 more source

Modal analysis and experimental investigation into vibration of the diamond-beaded rope based on lumped mass

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2022
The natural vibration characteristics of the diamond-beaded rope (DBR) based on lumped mass are analyzed both theoretically and experimentally. The dynamic model of the DBR is established by means of the multi-body dynamics theory.
Mengguang Fu, Peng Zhang, Fei Wang
doaj   +1 more source

Adolescenti autistici ad alto funzionamento: nuove riflessioni sull'efficacia di una tipologia di interventi integrati, sicuri e innovativi per il trattamento del disturbo ossessivo compulsivo

open access: yesPhenomena Journal, 2022
Questa recente pubblicazione nasce in relazione ad un Articolo di Ricerca pubblicato nel 2021 su Phenomena Journal e rappresenta una ulteriore profonda riflessione in merito all’efficacia che potrebbe avere una tipologia di Trattamento Integrato in ...
1Valentina Bellomo, 1 Elena Gigante, 1 Francesco Paolo Scarito
doaj   +1 more source

Investigation of Spectral Properties of DBR-Based Photonic Crystal Structure for Optical Filter Application

open access: yesCrystals, 2022
In this work, the spectral properties of distributed Bragg reflector-based photonic crystal (DBR-PhC) structures were studied for the near-infrared (NIR) range.
Umair Ahmed   +7 more
doaj   +1 more source

Ultrasound-Assisted Aqueous Extraction of Chlorogenic Acid and Cynarin with the Impact of Inulin from Burdock (Arctium lappa L.) Roots

open access: yesAntioxidants, 2022
The ultrasound-assisted aqueous extraction of chlorogenic acid (CGA) and cynarin with the impact of inulin from burdock (Arctium lappa L.) roots was investigated.
Yuan Chen, Jing-Yi Su, Chun-Yao Yang
doaj   +1 more source

Incidence of Design-Based Research Methodology in Science Education Articles: A Bibliometric Analysis

open access: yesRevista Brasileira de Pesquisa em Educação em Ciências, 2021
The design-based research (DBR) methodology has been standing out in the field of educational research promising to adapt to different scenarios and boost the development of educational innovations.
Luciana Natália Cividatti   +2 more
doaj   +1 more source

EFFECTS OF GRADING LAYERS ON GaAs VERTICAL CAVITY SURVACE EMITTING LASER PERFORMANCE [PDF]

open access: yesKirkuk Journal of Science, 2016
This study is an attempt to investigate the effect of grading layers thicknesses and doping on the distributed Bragg reflectors (DBRs) resistivity by using advanced numerical simulation (ISETCAD) .
Ashty M. Aaref, Farah Z. Jasim
doaj   +1 more source

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