Mr. Andrei Dragulinescu Profile

Andrei Dragulinescu

at Univ Politehnica Bucuresti

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Author

Publications (13)

Proceedings Article | 2 March 2023 Paper

Comparison between various structures of dilute-nitride InGaAsN quantum well lasers in terms of their main electronic properties

Andrei Drăgulinescu, Mihail Dumitrescu

Proceedings Volume 12493, 124931T (2023) https://doi.org/10.1117/12.2643158

KEYWORDS: Quantum wells, Quantum efficiency, External quantum efficiency, Gallium, Cladding, Gallium arsenide, Optical simulations, Aluminum, Nitrogen, Laser applications

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Proceedings Article | 2 March 2023 Paper

Smart textile with optical goniometer

Raluca-Diana Șandru, Andrei Drăgulinescu, Ana-Maria Claudia Drăgulinescu

Proceedings Volume 12493, 124932G (2023) https://doi.org/10.1117/12.2643159

KEYWORDS: Photodiodes, Light emitting diodes, Sensors, Light sources, Optical fibers, Signal processing, Microcontrollers, LCDs, Signal attenuation, Polymer optical fibers, Smart materials

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Proceedings Article | 2 March 2023 Paper

Characteristics of an In0.02Ga0.98N QW laser at a 462 nm wavelength

Andrei Drăgulinescu

Proceedings Volume 12493, 124931S (2023) https://doi.org/10.1117/12.2643147

KEYWORDS: Quantum wells, Indium gallium nitride, Optical simulations, Quantum efficiency, External quantum efficiency, Gallium, Absorption

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Proceedings Article | 20 February 2015 Paper

Using optical soliton stability for magnetic field measurement

Ionuţ Romeo Şchiopu, Andrei Drăgulinescu, Andrei Marinescu

Proceedings Volume 9258, 925816 (2015) https://doi.org/10.1117/12.2072314

KEYWORDS: Magnetism, Optical fibers, Sensors, Solitons, Optoelectronics, Polarization, Optical solitons, Ultrafast phenomena, Data processing, Dielectrics

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Proceedings Article | 20 February 2015 Paper

Verification of the windings axial clamping forces for high voltage power transformers by using passively mode-locked fiber lasers

Ionuţ Romeo Şchiopu, Andrei Drăgulinescu, Raluca Iordănescu, Andrei Marinescu

Proceedings Volume 9258, 92582Q (2015) https://doi.org/10.1117/12.2072311

KEYWORDS: Transformers, Optical fibers, Fiber lasers, Solitons, Mode locking, Signal attenuation, Optoelectronics, Laser resonators, Laser stabilization, Fiber optics

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Proceedings Article | 1 November 2012 Paper

Applications of CMOS image sensors: state-of-the-art

Andrei Drăgulinescu

Proceedings Volume 8411, 84111D (2012) https://doi.org/10.1117/12.966391

KEYWORDS: CMOS sensors, Sensors, Image sensors, Imaging systems, Charge-coupled devices, Photodiodes, CCD image sensors, Particles, Image processing, CMOS technology

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Proceedings Article | 1 November 2012 Paper

Comparison of various structures of CMOS photodiodes in terms of dark current, photocurrent, and quantum efficiency

Andrei Drӑgulinescu

Proceedings Volume 8411, 84111C (2012) https://doi.org/10.1117/12.966388

KEYWORDS: Photodiodes, Quantum efficiency, CMOS sensors, Sensors, Diffusion, CMOS technology, Silicon, Image processing, Photodetectors, Semiconducting wafers

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Proceedings Article | 1 November 2012 Paper

Effects of doping concentrations on the photocurrent and dark current of a CMOS photodiode

Andrei Drӑgulinescu, Livier Lizarraga, Salvador Mir

Proceedings Volume 8411, 84112G (2012) https://doi.org/10.1117/12.966394

KEYWORDS: Doping, Photodiodes, Diffusion, CMOS sensors, Charge-coupled devices, CCD image sensors, Sensors, Active sensors, Diodes, Metals

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Proceedings Article | 6 January 2009 Paper

Simulations of 462 nm InGaN quantum well semiconductor lasers

Andrei Drăgulinescu, Antti Laakso, Mihail Dumitrescu, Mircea Guină

Proceedings Volume 7297, 72970F (2009) https://doi.org/10.1117/12.823625

KEYWORDS: Indium gallium nitride, Semiconductor lasers, Cladding, Optical simulations, Quantum wells, Doping, Laser damage threshold, Semiconductor materials, Laser applications, Light emitting diodes

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Proceedings Article | 6 January 2009 Paper

Simulations of dilute nitride quantum well InGaAsN semiconductor lasers

Andrei Drăgulinescu, Antti Laakso, Mihail Dumitrescu, Mircea Guina

Proceedings Volume 7297, 729707 (2009) https://doi.org/10.1117/12.823615

KEYWORDS: Quantum wells, Semiconductor lasers, Gallium arsenide, Optical simulations, Semiconductors, Nitrogen, Gallium nitride, Cladding, Gallium, Laser damage threshold

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Proceedings Article | 6 January 2009 Paper

Jitter measurements in a 1550 nm mode-locked laser

Andrei Drăgulinescu, Robert Herda, Mircea Guină

Proceedings Volume 7297, 72970E (2009) https://doi.org/10.1117/12.823624

KEYWORDS: Mode locking, Fiber lasers, Picosecond phenomena, Laser development, Semiconductor lasers, Erbium, Fiber amplifiers, Optical amplifiers, Pulsed laser operation, Fiber optic communications

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Proceedings Article | 31 May 2007 Paper

Defect and fault modelling of a CMOS n-diffusion photodiode

Andrei Dragulinescu, Livier Lizarraga, Salvador Mir, Gilles Sicard

Proceedings Volume 6635, 663517 (2007) https://doi.org/10.1117/12.742105

KEYWORDS: Photodiodes, CMOS sensors, Doping, Diodes, Charge-coupled devices, Modeling, Chemical elements, CCD image sensors, Data modeling, Optoelectronics

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Proceedings Article | 14 December 2005 Paper

Optical correlators: systems and domains of applications

Andrei Dragulinescu, Dan Cojoc

Proceedings Volume 5972, 59721F (2005) https://doi.org/10.1117/12.639779

KEYWORDS: Optical correlators, Fourier transforms, Joint transforms, Image processing, Target detection, Holography, Lenses, Optical filters, Spatial light modulators, LCDs

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Showing 5 of 13 publications

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