News about laser diodes

Displaying 51-100 of 818 results.

Watt-Class Green (530 nm) and Blue (465 nm) Laser Diodes

Wiley Online Library
Date: Dec 5, 2017
Watt-Class Green (530 nm) and Blue (465 nm) Laser Diodes

In this research, watt-class green and blue laser diodes, which are fabricated on free-standing sem…

Application: Others,Projector

Measurements of water molecule density by tunable diode laser absorption spectroscopy in dielectric barrier discharges with gas–water interface

IOPscience
Date: Dec 5, 2017
Measurements of water molecule density by tunable diode laser absorption spectroscopy in dielectric barrier discharges with gas–water interface

We measured water molecule (H2O) density by tunable diode-laser absorption spectroscopy (TDLAS) for…

Application: Others,Sensor

Integrated beam shaping and polarization beam combining design for fiber-coupled semiconductor laser stacks system

OSA Publishing
Date: Dec 1, 2017
Integrated beam shaping and polarization beam combining design for fiber-coupled semiconductor laser stacks system

The beam quality mismatch in the fast and slow axes of laser diode stacks limits their applications…

Application: Others,Processing

Influence of hydrogen impurity on the resistivity of low temperature grown p-AlxGa1-xN layer (0.08 ≤ x ≤ 0.104)

ScienceDirect
Date: Dec, 2017
Influence of hydrogen impurity on the resistivity of low temperature grown p-AlxGa1-xN layer (0.08 ≤ x ≤ 0.104)

Low temperature grown p-AlGaN layer with a small resistivity is crucial to improve the performance …

Application: Others,Processing

A monolithically integrated photonic microwave generator

IOPscience
Date: Dec, 2017
A monolithically integrated photonic microwave generator

In this letter, we propose and experimentally demonstrate an indium phosphide (InP) based monolithi…

Application: Others,Sensor

Comparison of the leading-edge timing walk in pulsed TOF laser range finding with avalanche bipolar junction transistor (BJT) and metal-oxide-semiconductor (MOS) switch based laser diode drivers

AIP Publishing
Date: Dec, 2017
Comparison of the leading-edge timing walk in pulsed TOF laser range finding with avalanche bipolar junction transistor (BJT) and metal-oxide-semiconductor (MOS) switch based laser diode drivers

Timing walk error in pulsed time-of-flight based laser range finding was studied using two differen…

Application: Sensor

Multicolor tunable yellow-red emission in Eu/Er:LiNbO3 under ultraviolet and blue excitation

ScienceDirect
Date: Dec, 2017
Multicolor tunable yellow-red emission in Eu/Er:LiNbO3 under ultraviolet and blue excitation

The ability to manipulate the multicolor luminescence will greatly enhance the scope of their appli…

Application: Others,Biology

Design and Performance Analysis of Noise Equivalent Model for Optical Fiber Link

springer.com
Date: Nov 28, 2017
Design and Performance Analysis of Noise Equivalent Model for Optical Fiber Link

In optical communication system different types of noises may be introduced into the signal. The ef…

Application: Others,Telecom

Bandwidth enhancement scheme demonstration on direct modulation active-MMI laser diode using multiple photon photon resonance

AIP Publishing
Date: Nov 27, 2017
Bandwidth enhancement scheme demonstration on direct modulation active-MMI laser diode using multiple photon photon resonance

By introducing properly designed multiple photo photon resonances (PPRs) on an active-Multimode Int…

Application: Others,Sensor

Timing jitter reduction of optical pulse source using unpumped erbium doped fiber

springer.com
Date: Nov 21, 2017
Timing jitter reduction of optical pulse source using unpumped erbium doped fiber

A technique to enhance the stability of optical pulse source has been proposed that employs a speci…

Application: Others,Fiber Laser

Wavelength control of a DBR laser diode using a micromachined external mirror

SPIE
Date: Nov 21, 2017
Wavelength control of a DBR laser diode using a micromachined external mirror

Single-mode wavelength-stabilized light sources are key devices for spectroscopic applications, opt…

Application: Others,Sensor,Telecom

High-Speed InP-Based Long-Wavelength VCSELs

springer.com
Date: Nov 19, 2017
High-Speed InP-Based Long-Wavelength VCSELs

The rapid growth of internet and cloud computing applications drives a huge demand for bandwidth ca…


Impact of Mode-Hopping Noise on InGaN Edge Emitting Laser Relative Intensity Noise Properties

IEEE
Date: Nov 16, 2017
Impact of Mode-Hopping Noise on InGaN Edge Emitting Laser Relative Intensity Noise Properties

In this paper, we report, through a comparative analysis of static and dynamic measurements, on the…


Colorless WRC-FPLDs Subject to Gain-Saturated RSOA Feedback for WDM-PONs

IEEE
Date: Nov 14, 2017
Colorless WRC-FPLDs Subject to Gain-Saturated RSOA Feedback for WDM-PONs

A directly modulated, colorless, weak-resonant-cavity Fabry–Perot laser diode (WRC-FPLD)-based tran…

Application: Others,Telecom,Sensor

Novel Linewidth Narrowing Scheme of DFB Lasers Based on Integrated Mutual Injection Locking

OSA Publishing
Date: Nov 13, 2017
Novel Linewidth Narrowing Scheme of DFB Lasers Based on Integrated Mutual Injection Locking

A novel linewidth narrowing scheme based on mutual injection locking is proposed and experimentally…

Application: Others,Sensor,Telecom

Simulation of Ridge-Waveguide AlGaInP/GaInP Multiple-Quantum Well Diode Lasers

springer.com
Date: Nov 11, 2017
Simulation of Ridge-Waveguide AlGaInP/GaInP Multiple-Quantum Well Diode Lasers

The output characteristics of the ridge-waveguide AlGaInP/GaInP multiple quantum well diode lasers …


Frequency locking of a semiconductor laser by a ring fibre resonator

IOPscience
Date: Nov 10, 2017
Frequency locking of a semiconductor laser by a ring fibre resonator

We propose a model for the oscillation of a single-frequency feedback semiconductor laser based on …

Application: Others,Telecom,Sensor

Chaotic Time-delay Signature Varied by Bias in a Semiconductor Laser with FBG Feedback

OSA Publishing
Date: Nov 10, 2017
Chaotic Time-delay Signature Varied by Bias in a Semiconductor Laser with FBG Feedback

Chaotic time-delay signature (TDS) in a semiconductor laser with feedback from a fiber Bragg gratin…

Application: Others,Security

Linewidth and RIN measurement of a new single mode semiconductor laser

OSA Publishing
Date: Nov 10, 2017
Linewidth and RIN measurement of a new single mode semiconductor laser

In this paper, we present a detailed measurement of the spectral linewidth and RIN of a new single …

Application: Others

Frequency Response of Directly Modulated III-nitride Based Blue Laser Diode at Different Temperature

OSA Publishing
Date: Nov 10, 2017
Frequency Response of Directly Modulated III-nitride Based Blue Laser Diode at Different Temperature

Frequency response of a blue laser diode was measured within a temperature range between 10 to 40 d…

Application: Others,Projector,Telecom

High-depth-resolution range imaging with multiple-wavelength superheterodyne interferometry using 1550-nm lasers

OSA Publishing
Date: Nov 1, 2017
High-depth-resolution range imaging with multiple-wavelength superheterodyne interferometry using 1550-nm lasers

Lasers and laser diodes are widely used as illumination sources for optical imaging techniques. Tim…

Application: Others,Sensor

Laterally coupled distributed feedback type-I quantum well cascade diode lasers emitting near 3.22  μm

OSA Publishing
Date: Nov 1, 2017
Laterally coupled distributed feedback type-I quantum well cascade diode lasers emitting near 3.22  μm

The laterally coupled distributed feedback (LC-DFB) GaSb-based type-I quantum well cascade diode la…

Application: Others,Sensor

Design optimization for 25 Gbit/s DML InGaAlAs/InGaAsP/InP SL-MQW laser diode incorporating temperature effect

ScienceDirect
Date: Nov, 2017
Design optimization for 25 Gbit/s DML InGaAlAs/InGaAsP/InP SL-MQW laser diode incorporating temperature effect

In this paper, a detailed carrier dynamics model for quantum well lasers is used to study the modul…

Application: Others,Telecom

Electrically injected GaAsBi/GaAs single quantum well laser diodes

AIP Publishing
Date: Nov, 2017
Electrically injected GaAsBi/GaAs single quantum well laser diodes

We present electrically injected GaAs/GaAsBi single quantum well laser diodes (LDs) emitting at a r…

Application: Others,Sensor

Technology of the production of laser diodes based on GaAs/InGaAs/AlGaAs structures grown on a Ge/Si substrate

springer.com
Date: Nov, 2017
Technology of the production of laser diodes based on GaAs/InGaAs/AlGaAs structures grown on a Ge/Si substrate

InGaAs/GaAs/AlGaAs laser diodes with quantum wells are grown by the metal-organic chemical vapor de…


Quantum-Dot Mode-Locked Lasers: Sources for Tunable Optical and Electrical Pulse Combs

springer.com
Date: Nov, 2017
Quantum-Dot Mode-Locked Lasers: Sources for Tunable Optical and Electrical Pulse Combs

In this chapter optical and electrical properties of quantum-dot mode-locked semiconductor lasers a…

Application: Others,Telecom,Sensor

Asymmetrical quantum well degradation of InGaN/GaN blue laser diodes characterized by photoluminescence

AIP Publishing
Date: Nov, 2017
Asymmetrical quantum well degradation of InGaN/GaN blue laser diodes characterized by photoluminescence

The temperature, power, and voltage dependent photoluminescence spectra are studied in InGaN/GaN do…

Application: Others,Projector

Optical side-band generation in THz Fabry-Perot laser cavities

AIP Publishing
Date: Nov, 2017
Optical side-band generation in THz Fabry-Perot laser cavities

Optical nonlinearities in semiconductor laser cavities can be exploited to characterize the propert…

Application: Others,Sensor

Active layer position optimization in asymmetric AlGaInAs/AlGaAs semiconductor laser diode structures

ScienceDirect
Date: Nov, 2017
Active layer position optimization in asymmetric AlGaInAs/AlGaAs semiconductor laser diode structures

In semiconductor lasers design, asymmetric structure can be used to improve laser characteristics. …

Application: Others,Telecom,Biology

Strong doping of the n-optical confinement layer for increasing output power of high-power pulsed laser diodes in the eye safe wavelength range

IOPscience
Date: Oct 31, 2017
Strong doping of the n-optical confinement layer for increasing output power of high-power pulsed laser diodes in the eye safe wavelength range

An analytical model for internal optical losses at high power in a 1.5 μm laser diode with strong n…

Application: Others,Processing

Dynamical regimes and intracavity propagation delay in external cavity semiconductor diode lasers

springer.com
Date: Oct 31, 2017
Dynamical regimes and intracavity propagation delay in external cavity semiconductor diode lasers

Intracavity propagation delay, a delay introduced by a semiconductor diode laser, is found to signi…

Application: Others,Security,Telecom

High brightness laser-driven white emitter for Etendue-limited applications

OSA Publishing
Date: Oct 20, 2017
High brightness laser-driven white emitter for Etendue-limited applications

Laser-phosphor lighting has great potential because a laser diode (LD) could keep high efficiency u…

Application: Others,Projector

Stability of period-one (P1) oscillations generated by semiconductor lasers subject to optical injection or optical feedback

OSA Publishing
Date: Oct 16, 2017
Stability of period-one (P1) oscillations generated by semiconductor lasers subject to optical injection or optical feedback

We study the stability of period-one (P1) oscillations experimentally generated by semiconductor la…

Application: Others,Sensor,Telecom

Towards zero-threshold optical gain using charged semiconductor quantum dots

nature.com
Date: Oct 16, 2017
Towards zero-threshold optical gain using charged semiconductor quantum dots

Colloidal semiconductor quantum dots are attractive materials for the realization of solution-proce…

Application: Others,Processing

Effect of metal V-grooved wave guide gap width on high efficient CW-THz TDS systems

IEEE
Date: Oct 16, 2017
Effect of metal V-grooved wave guide gap width on high efficient CW-THz TDS systems

The generation of a wide-range THz wave is investigated from a photoconductive antenna excited usin…

Application: Others,Sensor

Time-delay signature suppression in a chaotic semiconductor laser by fiber random grating induced random distributed feedback

OSA Publishing
Date: Oct 15, 2017
Time-delay signature suppression in a chaotic semiconductor laser by fiber random grating induced random distributed feedback

We demonstrate that a semiconductor laser perturbed by distributed feedback with random time delays…

Application: Others,Telecom,Security

Large Bandwidth, Small Current Density, and Temperature Stable 980-nm VCSELs

IEEE
Date: Oct 13, 2017
Large Bandwidth, Small Current Density, and Temperature Stable 980-nm VCSELs

A low-cost method to adjust the mirror reflectivity of vertical-cavity surface-emitting lasers (VCS…


Absorber Length Optimization of On-Chip Colliding Pulse Mode-Locked Semiconductor Laser

IEEE
Date: Oct 10, 2017
Absorber Length Optimization of On-Chip Colliding Pulse Mode-Locked Semiconductor Laser

We present theoretical and experimental results regarding the saturable absorber length optimizatio…

Application: Others,Telecom,Sensor

Compact High Power Diode Laser MOPA System With 5.5 nm Wavelength Tunability

IEEE
Date: Oct 6, 2017
Compact High Power Diode Laser MOPA System With 5.5 nm Wavelength Tunability

A hybrid master oscillator power amplifier (MOPA) diode laser with 6.2 W output power at 971.8 nm i…

Application: Others,Sensor,DPSS Laser

4-nm continuous rapid sweeping spectroscopy in 2-μm band using distributed Bragg reflector laser

springer.com
Date: Oct 4, 2017
4-nm continuous rapid sweeping spectroscopy in 2-μm band using distributed Bragg reflector laser

We apply a newly developed 2-μm distributed Bragg reflector (DBR) laser to CO2 spectroscopy. We ach…

Application: Others,Sensor

Real-Time Video Transmission Over Different Underwater Wireless Optical Channels Using a Directly Modulated 520  nm Laser Diode

OSA Publishing
Date: Oct 1, 2017
Real-Time Video Transmission Over Different Underwater Wireless Optical Channels Using a Directly Modulated 520  nm Laser Diode

We experimentally demonstrate high-quality real-time video streaming over an underwater wireless op…

Application: Others,Telecom

Frequency noise reduction performance of a feed-forward heterodyne technique: application to an actively mode-locked laser diode

OSA Publishing
Date: Oct 1, 2017
Frequency noise reduction performance of a feed-forward heterodyne technique: application to an actively mode-locked laser diode

We report on the frequency noise reduction performance of a feed-forward technique. The Letter is b…

Application: Others,Sensor

Power scaling of continuous-wave visible Pr3+:YLF laser end-pumped by high power blue laser diodes

OSA Publishing
Date: Oct 1, 2017
Power scaling of continuous-wave visible Pr3+:YLF laser end-pumped by high power blue laser diodes

We demonstrate a power scaling of a continuous-wave Pr3+:YLF laser at 640 and 607 nm utilizing a fi…

Application: Others,DPSS Laser

Role of dynamical injection locking and characteristic pulse events for low frequency fluctuations in semiconductor lasers

AIP Publishing
Date: Oct, 2017
Role of dynamical injection locking and characteristic pulse events for low frequency fluctuations in semiconductor lasers

We investigate the dynamics of semiconductor lasers subject to time-delayed optical feedback from t…

Application: Others,Processing

Photothermally controlled 50 mA gating in VO2-based planar device using NIR laser diode

ScienceDirect
Date: Sep 29, 2017
Photothermally controlled 50 mA gating in VO2-based planar device using NIR laser diode

By utilizing a near infrared laser diode as an excitation light source, we demonstrated a photother…

Application: Others,Sensor

High-power diode laser in the circumvestibular incision for Le Fort I osteotomy in orthognathic surgery: a prospective case series study

springer.com
Date: Sep 26, 2017
High-power diode laser in the circumvestibular incision for Le Fort I osteotomy in orthognathic surgery: a prospective case series study

The incisions during orthognathic surgery are classically performed with conventional scalpel or el…

Application: Biology

Generation of high-peak-power sub-nanosecond 650-nm band optical pulses based on semiconductor laser diodes toward STED application

OSA Publishing
Date: Sep 26, 2017
Generation of high-peak-power sub-nanosecond 650-nm band optical pulses based on semiconductor laser diodes toward STED application

Toward the application in pulsed-mode STimulated Emission Depletion (STED) super- resolution micros…

Application: Others,Sensor,Biology

Optical Generation of Subcarrier Multiplexed (SCM) Millimeter Wave Signal and Its Application in Radio Over Fiber System

springer.com
Date: Sep 23, 2017
Optical Generation of Subcarrier Multiplexed (SCM) Millimeter Wave Signal and Its Application in Radio Over Fiber System

Millimeter-wave radio over fiber is an attractive scheme which is widely used in broadband wireless…

Application: Others,Telecom

Dual-comb Spectroscopy with One Unstabilized Semiconductor Laser

OSA Publishing
Date: Sep 18, 2017
Dual-comb Spectroscopy with One Unstabilized Semiconductor Laser

We present dual-comb spectroscopy on water vapor with a free-running modelocked semiconductor laser…

Application: Sensor,Others

The Effects of Diode Laser Therapy as an Adjunct to Scaling and Root Planing in the Treatment of Aggressive Periodontitis: A 1-Year Randomized Controlled Clinical Trial

Mary Ann Liebert, Inc.
Date: Sep 14, 2017
The Effects of Diode Laser Therapy as an Adjunct to Scaling and Root Planing in the Treatment of Aggressive Periodontitis: A 1-Year Randomized Controlled Clinical Trial

The aim of this study was to investigate and compare the clinical, microbial, and inflammatory effe…

Application: Others,Biology