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521
Underwater laser communication with sloped pulse modulation in turbid water
Published 2019-03-01“…The bit error rate of a 5.4 × 10 −6 by 450-nm blue laser diode in turbid water with 1.4 Nephelometric Turbidity Unit was below the forward error correction limit. …”
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522
Automated detection of inner surface defects in pipes using image processing algorithms
Published 2012-12-01“…The proposed optical system is an assembly of a CCD camera and a laser diode to create a ring-shaped pattern. The camera obtains images of the light projections on the pipe wall. …”
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523
Effect of the frequency detuning on the stability analysis in a semiconductor laser subject to optical injection: Hopf and Routh-Horwitz conditions
Published 2021-05-01“…In this paper, the rate equations for a laser diode subject to an optical injection are studied both analytically and numerically. …”
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524
Surface related laser induced white emission of Cr:YAG ceramic
Published 2021-07-01“…Abstract In this work we report the white light emission in transparent Cr:YAG ceramic pellet upon irradiation with focused beam of CW infrared laser diode. It was found that this phenomenon is specifically related to interaction of laser beam with a surface of the pellet. …”
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525
Efficient illumination for microsecond tracking microscopy.
Published 2014-01-01“…Here we systematically compare the main illumination systems employed in holographic tracking microscopy, and we show that a superluminescent diode and a modulated laser diode perform the best in terms of image quality and acquisition speed, respectively. …”
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526
Frustrated total internal reflection of newton rings multiple beam interference
Published 2018-10-01“… Frustrated Total Internal Reflection FTIR phenomenon is manifested employing Newton‟s rings setup generated via a coherent light beam of a laser diode ( . All concentric bright and dark rings, except the central bright spot, were noticed to recede (disappear) when the incident angle exceeded the critical angle of 41o. …”
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527
Freeform design of a two-reflector system to collimate and shape a point source distribution
Published 2021-01-01“…We test our algorithm on two cases, first, uniform source and target distributions, and second, an elliptic Gaussian intensity of a laser diode to a ring-shaped illuminance. We are able to obtain good solutions in both cases.…”
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528
Design of experimental setup for investigation of cavitation bubble collapse close to a solid wall
Published 2012-04-01“…The bubble collapse is initiated by a piezoelectric actuator attached to the flexible wall of the chamber. A laser diode with a linear CCD sensor are used to detect the bubble position during its buoyancy-driven rise to the upper wall of the chamber. …”
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529
Performance Evaluation of an Optoelectronic Oscillator Based on a Band-Pass Microwave Photonic Filter Architecture
Published 2017-09-01“…Considering the optical spectral characteristics of the multimode laser diode used as an optical source, the length and the chromatic dispersion parameter of the optical fiber which acts as a feedback loop, it is possible to determine the appearance of a series of spectrally pure microwave signals widely spaced. …”
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530
Development of high-energy fiber CPA system
Published 2013-11-01“…To prepare such a front end without using a regenerative amplifier or optical parametric chirped pulse amplification (OPCPA) pumped by the second harmonic of a Nd:YAG laser, we have developed a fiber CPA system using laser diode (LD)-pumped single-mode fibers, large-mode-area (LMA) fibers, and photonic-crystal (rod) fibers. …”
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531
Characterization and modeling of soliton transmission at 2.5 gb/s over 200 km
Published 2006“…The effect of non-linearity and active pre-chirping mode-locked laser diode source were also investigated. Assessment on a model system using real data shows that propagation over 250km at 2.5Gb/s in standard fiber with 20ps pulse widths is possible in the 1550nm wavelength range. …”
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532
Time-resolved fluorescence measurements using stroboscopic excitation
Published 2005“…We present a comparison of the model with a cuvette based analysis of a carbocyanine dye where the excitation source is a 650 nm wavelength, self-pulsing AlGaInP laser diode. © 2005 SPIE and OSA.…”
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533
Low-Cost Optical Fibre Chemical Sensor for Use in Liquid Acid-Base Titration
Published 2003“…A simple low-cost portable optical fibre chemical sensor instrument has been developed in this study by using a laser diode as a light source and solid-state photodiode as a detector. …”
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534
Optical tomography system for bubbles detection in liquid medium
Published 2013“…The main goal of this project is to build a new design of optical tomography system for bubbles detector using couple charge device linear sensor and laser diode. In this report it describes the objectives, problems encountered, and scopes of the project. …”
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535
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536
Drone-Based Fluorescence Lidar for Agricultural Applications
Published 2023-01-01“…To minimize the device, we used laser diode (wavelength 405 nm and power consumption 150 mW) and minispectrometer with wavelength range from 350 nm to 810 nm. …”
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537
Bio-Inspired Wide-Angle Broad-Spectrum Cylindrical Lens Based on Reflections from Micro-Mirror Array on a Cylindrical Elastomeric Membrane
Published 2014-06-01“…Our work could be applied to diverse applications including laser diode collimation, barcode scanning, holography, digital projection display, microlens arrays, and optical microscopy.…”
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538
Novel graphene‐based optical MEMS accelerometer dependent on intensity modulation
Published 2018-09-01“…The designed sensing system includes a multilayer graphene finger, a laser diode (LD) light source, a photodiode, and integrated optical waveguides. …”
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539
Er3+/Ho3+-Codoped Fluorotellurite Glasses for 2.7 µm Fiber Laser Materials
Published 2013-08-01“…This work reports the enhanced emission at 2.7 µm in Er3+/Ho3+-codoped fluorotellurite glass upon a conventional 980 nm laser diode. The significantly reduced green upconversion and 1.5 µm emission intensity in Er3+/Ho3+-codoped samples are observed. …”
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540
Diode-Pumped 50 Hz–10 J Nano-Second Nd:YAG Laser
Published 2022-06-01“…Each amplify module was pumped by an 808 nm laser diode and cooled by water from the back end of the Nd:YAG slab. …”
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