News about laser diodes

Displaying 51-100 of 857 results.

Self-injection locked blue laser

IOPscience
Date: Feb 28, 2018
Self-injection locked blue laser

We demonstrate a 446.5 nm GaN semiconductor laser with sub-MHz linewidth. The linewidth reduction i…


Improvement of two-photon microscopic imaging in deep regions of living mouse brains by utilizing a light source based on an electrically controllable gain-switched laser diode

SPIE
Date: Feb 23, 2018
Improvement of two-photon microscopic imaging in deep regions of living mouse brains by utilizing a light source based on an electrically controllable gain-switched laser diode

In vivo two-photon microscopy is an advantageous technique for observing living mouse brains at hig…

Application: Others,Biology

Semipolar GaN-based laser diodes for Gbit/s white lighting communication: devices to systems

SPIE
Date: Feb 23, 2018
Semipolar GaN-based laser diodes for Gbit/s white lighting communication: devices to systems

We report the high-speed performance of semipolar GaN ridge laser diodes at 410 nm and the dynamic …


Optical distance measuring method using fast frequency noise characteristics of a laser diode

SPIE
Date: Feb 23, 2018
Optical distance measuring method using fast frequency noise characteristics of a laser diode

While standard laser range finders use modulation signals, such as sharp pulses, the method we devi…

Application: Sensor,Security,Others

Frequency locking of compact laser-diode modules at 633 nm

SPIE
Date: Feb 22, 2018
Frequency locking of compact laser-diode modules at 633 nm

This work reports on a compact diode-laser module emitting at 633 nm. The emission frequency can be…

Manufacturer: TOPTICA Photonics AG
Application: Others,Sensor

Coherent optical spectroscopy of charged exciton complexes in semiconductor nanostructures

SPIE
Date: Feb 22, 2018
Coherent optical spectroscopy of charged exciton complexes in semiconductor nanostructures

We present results on photon echo spectroscopy for resonant excitation of localized charged exciton…


High-brightness tapered laser diodes with photonic crystal structures

SPIE
Date: Feb 20, 2018
High-brightness tapered laser diodes with photonic crystal structures

Beam quality of tapered laser diodes is limited by higher order lateral mode. On purpose of optimiz…

Application: Others,Processing

Influence of longitudinal mode lock by external grating on filamentation and catastrophic optical mirror damage (COMD) of 970 nm broad area single emitters

SPIE
Date: Feb 20, 2018
Influence of longitudinal mode lock by external grating on filamentation and catastrophic optical mirror damage (COMD) of 970 nm broad area single emitters

For many applications, laser diodes with very narrow and stable emission wavelength are needed. The…

Application: Sensor,Security,Telecom

Testing system of multiplying electron gain for electron bombarded semiconductor

SPIE
Date: Feb 20, 2018
Testing system of multiplying electron gain for electron bombarded semiconductor

Electron bombardment of semiconductor gain as the main characteristics of electronic bombardment de…

Application: Sensor,Telecom,Others

Chapter 13 – Diode Laser Resection of Prostate (980 nm)

ScienceDirect
Date: Feb 16, 2018
Chapter 13 – Diode Laser Resection of Prostate (980 nm)

Diode lasers are a class of lasers that generate laser radiation through a semiconductor. Diode las…

Application: Others,Biology

AlGaAs-based optically pumped semiconductor lasers

SPIE
Date: Feb 15, 2018
AlGaAs-based optically pumped semiconductor lasers

The most technologically mature optically pumped semiconductor lasers (OPSL) are based on InGaAs qu…

Manufacturer: Coherent Inc.
Application: Others,DPSS Laser

Diffraction-limited 577 nm true-yellow laser by frequency doubling of a tapered diode laser

SPIE
Date: Feb 15, 2018
Diffraction-limited 577 nm true-yellow laser by frequency doubling of a tapered diode laser

A wide range of laser medical treatments are based on coagulation of blood by absorption of the las…

Application: Others,Biology

Role of the Electron Blocking Layer in the Graded-index Separate Confinement Heterostructure Nitride Laser Diodes

ScienceDirect
Date: Feb 14, 2018
Role of the Electron Blocking Layer in the Graded-index Separate Confinement Heterostructure Nitride Laser Diodes

In this work, we investigate the role of the electron blocking layer (EBL) in laser diodes based on…

Application: Others,Processing

Distributed feedback InGaN/GaN laser diodes

SPIE
Date: Feb 13, 2018
Distributed feedback InGaN/GaN laser diodes

We have realised InGaN/GaN distributed feedback laser diodes emitting at a single wavelength in the…

Application: Others,Sensor,Telecom

Exciton recombination in lasing contributing an opposite abrupt change of the electrical behavior near threshold between GaN- and GaAs- multi-quantum-well laser diodes

IOPscience
Date: Feb 9, 2018
Exciton recombination in lasing contributing an opposite abrupt change of the electrical behavior near threshold between GaN- and GaAs- multi-quantum-well laser diodes

The opposite sudden change of electrical characteristics between narrow and wide bang-gap multi-qua…

Application: Others,Processing

Visualization of an acoustic stationary wave by optical feedback interferometry

SPIE
Date: Feb 7, 2018
Visualization of an acoustic stationary wave by optical feedback interferometry

This paper presents an experimental technique for two-dimensional imaging of dynamic acoustic press…

Application: Others,Sensor

900 nm waveband four wave mixing generation in highly nonlinear photonic crystal fiber

IOPscience
Date: Feb 6, 2018
900 nm waveband four wave mixing generation in highly nonlinear photonic crystal fiber

We demonstrate, for the first time to the best of our knowledge, four wave mixing (FWM) process in …

Application: Others,Sensor,Telecom

InP femtosecond mode-locked laser in a compound feedback cavity with a switchable repetition rate

OSA Publishing
Date: Feb 1, 2018
InP femtosecond mode-locked laser in a compound feedback cavity with a switchable repetition rate

A monolithically integrated mode-locked semiconductor laser is proposed. The compound ring cavity i…

Application: Others,Sensor

Determining the refractive index of a laser diode waveguide from the measured radiation pattern

springer.com
Date: Feb 1, 2018
Determining the refractive index of a laser diode waveguide from the measured radiation pattern

It is shown that to find the transverse refractive-index profile of a semiconductor laser waveguide…

Application: Others,Sensor,Processing

Influence of nonlinear effects on the characteristics of pulsed high-power broad-area distributed Bragg reflector lasers

springer.com
Date: Feb 1, 2018
Influence of nonlinear effects on the characteristics of pulsed high-power broad-area distributed Bragg reflector lasers

We theoretically analyze the influence of nonlinear effects such as spatial holeburning, two-photon…

Application: Others,Sensor,Processing

Semiconductor laser and optical amplifier modeling

springer.com
Date: Feb 1, 2018
Semiconductor laser and optical amplifier modeling

Approaches are discussed to analyzing the dynamics and statics of the radiation of semiconductor la…

Application: Others,Processing

All-optical multistability using cross-gain modulation in quantum-dot distributed feedback semiconductor optical amplifier

springer.com
Date: Feb, 2018
All-optical multistability using cross-gain modulation in quantum-dot distributed feedback semiconductor optical amplifier

We propose and theoretically demonstrate a novel type of all-optical multistable device using singl…

Application: Others,Processing

Feed-forward coherent link from a comb to a diode laser: Application to widely tunable cavity ring-down spectroscopy

AIP Publishing
Date: Feb, 2018
Feed-forward coherent link from a comb to a diode laser: Application to widely tunable cavity ring-down spectroscopy

We apply a feed-forward frequency control scheme to establish a phase-coherent link from an optical…

Application: Others,Sensor

Opposite change trend of electrical behavior curves near the threshold between GaAs- and GaN-multi-quantum-well laser diodes

springer.com
Date: Feb, 2018
Opposite change trend of electrical behavior curves near the threshold between GaAs- and GaN-multi-quantum-well laser diodes

The opposite and abrupt change trends of the electrical behavior between narrow and wide bang-gap m…

Application: Others,Processing

Gain modeling and thermal management of optically pumped semiconductor lasers

SPIE
Date: Jan 26, 2018
Gain modeling and thermal management of optically pumped semiconductor lasers

Optically pumped semiconductor lasers (OPSL) have been replacing legacy gas lasers and solid state …

Manufacturer: Coherent Inc.
Application: Others,Biology,Projector

Results of very long time ageing tests of DFB ridge laser diodes emitting at 852 nm and 894 nm for Cesium atomic clocks

SPIE
Date: Jan 26, 2018
Results of very long time ageing tests of DFB ridge laser diodes emitting at 852 nm and 894 nm for Cesium atomic clocks

Time and Frequency applications need high accuracy and high stability clocks. Optically pumped comp…

Application: Others,Sensor

Wavelength-Stabilized High-Pulse-Power Laser Diodes for Automotive LiDAR Authors

Wiley Online Library
Date: Jan 16, 2018
Wavelength-Stabilized High-Pulse-Power Laser Diodes for Automotive LiDAR Authors

For automotive light detection and ranging (LiDAR) systems diode lasers emitting short optical puls…

Application: Others,Sensor

Conservation of quantum efficiency in quantum well intermixing by stress engineering with dielectric bilayers

IOPscience
Date: Jan 5, 2018
Conservation of quantum efficiency in quantum well intermixing by stress engineering with dielectric bilayers

In semiconductor lasers, quantum well intermixing (QWI) with high selectivity using dielectrics oft…

Application: Others,Processing

Compact Deep UV System at 222.5 nm Based on Frequency Doubling of GaN Laser Diode Emission

IEEE
Date: Jan 3, 2018
Compact Deep UV System at 222.5 nm Based on Frequency Doubling of GaN Laser Diode Emission

Laser light sources emitting in the deep ultraviolet wavelength range between 210 and 230 nm are of…

Application: Others,Sensor

Semiconductor laser using multimode interference principle

ScienceDirect
Date: Jan 1, 2018
Semiconductor laser using multimode interference principle

Multimode interference (MMI) structure is introduced in semiconductor laser used in optical communi…

Application: Others,Telecom

Iodine-stabilized single-frequency green InGaN diode laser

OSA Publishing
Date: Jan 1, 2018
Iodine-stabilized single-frequency green InGaN diode laser

A 520-nm InGaN diode laser can emit a milliwatt-level, single-frequency laser beam when the applied…

Application: Others,Sensor

Multistate intermittency on the route to chaos of a semiconductor laser subjected to optical feedback from a long external cavity

AIP Publishing
Date: Jan, 2018
Multistate intermittency on the route to chaos of a semiconductor laser subjected to optical feedback from a long external cavity

We observe experimentally two regimes of intermittency on the route to chaos of a semiconductor las…

Application: Others,Security

Two dimensional semiconductors for ultrasound-mediated cancer therapy: the case of black phosphorus nanosheets

Royal Society of Chemistry
Date: 2018
Two dimensional semiconductors for ultrasound-mediated cancer therapy: the case of black phosphorus nanosheets

With black phosphorus (BP) as an example, the first two-dimensional (2D) semiconductor based sonose…

Application: Biology,Security,Others

Continuously tunable organic solid-state laser based on the adjustment of effective refractive index

ScienceDirect
Date: Dec 30, 2017
Continuously tunable organic solid-state laser based on the adjustment of effective refractive index

We report a facile way for continuously tuning the lasing wavelength of an organic solid-state lase…

Application: Others,Sensor,Telecom

Polarization effects associated with thermal processing of HY-80 structural steel using high-power laser diode array

SPIE
Date: Dec 23, 2017
Polarization effects associated with thermal processing of HY-80 structural steel using high-power laser diode array

Localized heating of roughened steel surfaces using highly divergent laser light emitted from high-…

Application: Others,Processing

GaN-Based Blue Laser Diodes With 2.2 W of Light Output Power Under Continuous-Wave Operation

IEEE
Date: Dec 15, 2017
GaN-Based Blue Laser Diodes With 2.2 W of Light Output Power Under Continuous-Wave Operation

Research on GaN-based blue and green laser diodes (LDs) has attracted great attention in the past y…

Application: Others,Projector

3-kHz Spectral Linewidth Laser Assembly With Coherent Optical Negative Feedback

IEEE
Date: Dec 14, 2017
3-kHz Spectral Linewidth Laser Assembly With Coherent Optical Negative Feedback

We demonstrate the stable operation of a narrow-linewidth semiconductor laser source based on a coh…

Application: Others,Telecom,Sensor

Filtered Multicarrier OFDM Encoding on Blue Laser Diode for 14.8-Gbps Seawater Transmission

IEEE
Date: Dec 13, 2017
Filtered Multicarrier OFDM Encoding on Blue Laser Diode for 14.8-Gbps Seawater Transmission

A GaN blue laser diode (BLD) based visible-light communication link is demonstrated in seawater env…

Application: Others,Telecom

InGaP/AlGaInP Quantum Well Discrete Mode Laser Diode Emitting at 689 nm

IEEE
Date: Dec 13, 2017
InGaP/AlGaInP Quantum Well Discrete Mode Laser Diode Emitting at 689 nm

A discrete-mode laser diode, fabricated in the In0.6Ga0.4P/AlGaInP multiple quantum well system, em…

Manufacturer: Eblana Photonics Ltd.
Application: Others,Sensor

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