News about laser diodes

Displaying 51-100 of 661 results.

Power degradation and reliability study of high-power laser bars at quasi-QCW operation

SPIE
Date: Feb 20, 2017
Power degradation and reliability study of high-power laser bars at quasi-QCW operation

The solid state laser relies on the laser diode (LD) pumping array. Typically for high peak power q…

Application: Others,DPSS Laser

High power and high efficiency 1.8-kW pulsed diode laser bar

SPIE
Date: Feb 20, 2017
High power and high efficiency 1.8-kW pulsed diode laser bar

There is a great interest in the development of high-power, high-efficiency, and low-cost quasicont…

Manufacturer: nLIGHT Corporation
Application: Others,DPSS Laser

633-nm single-mode laser diode module with PM fiber output

SPIE
Date: Feb 16, 2017
633-nm single-mode laser diode module with PM fiber output

Several holographic and interferometric applications would benefit significantly from a diode laser…

Manufacturer: TOPTICA Photonics AG
Application: Others,Sensor

REGULAR PAPERS High-temperature operation of 640 nm wavelength high-power laser diode arrays

IOPscience
Date: Feb 16, 2017
REGULAR PAPERS High-temperature operation of 640 nm wavelength high-power laser diode arrays

We realized the fabrication of a red semiconductor laser array with high optical power and reliabil…

Application: Others,Projector

Lensless digital holographic microscope using in-line configuration and laser diode illumination

SPIE
Date: Feb 15, 2017
Lensless digital holographic microscope using in-line configuration and laser diode illumination

In this paper we present a lensless transmission digital holographic microscope for the investigati…

Application: Others,Sensor

New 4CM: High Power and Small Form Factor

SEMINEX CORPORATION
Date: Feb 14, 2017
New 4CM: High Power and Small Form Factor

SemiNex Corporation now offers the 4CM, a multi-chip fibercoupled laser module with up to 14 Watts…

Manufacturer: Seminex Corp.
Application: Others,Biology,Sensor

Linking transducer transfer function with multi-pulse excitation photoacoustic response

SPIE
Date: Feb 11, 2017
Linking transducer transfer function with multi-pulse excitation photoacoustic response

It has been shown recently, that varying the excitation sequence could deliver additional benefits …

Application: Others,Biology

Terahertz transmission properties of silicon wafers using continuous-wave terahertz spectroscopy

IOPscience
Date: Feb 6, 2017
Terahertz transmission properties of silicon wafers using continuous-wave terahertz spectroscopy

We present the spectral properties of Si wafers using continuous-wave terahertz (CW-THz) spectrosco…

Application: Others,Sensor

Ultra-Fast Semiconductor Laser Sources

springer.com
Date: Feb 1, 2017
Ultra-Fast Semiconductor Laser Sources

The chapter focuses on ultra-fast light sources for achieving small footprint and lower-power-consu…

Application: Others,Telecom

Suppression of optical field leakage to GaN substrate in GaN-based green laser diode

ScienceDirect
Date: Feb, 2017
Suppression of optical field leakage to GaN substrate in GaN-based green laser diode

In this study, n-InGaN and u-InGaN are proposed to be the lower waveguide (LWG) and quantum barrier…

Application: Others,Projector

A compact diode laser based all-fiber delivery system for PDT+PTT with integrated temperature sensing capabilities

SPIE
Date: Jan 28, 2017
A compact diode laser based all-fiber delivery system for PDT+PTT with integrated temperature sensing capabilities

The paper first reviews the main laser based cancer therapies and then presents a new 9xx nm high p…

Application: Others,Biology

Monolithic dual-wavelength diode lasers with sub-MHz narrowband emission at 785 nm

SPIE
Date: Jan 28, 2017
Monolithic dual-wavelength diode lasers with sub-MHz narrowband emission at 785 nm

A dual-wavelength diode laser with sub-MHz narrowband emission at 785 nm is presented. The device i…

Manufacturer: TOPTICA Photonics AG
Application: Others,Sensor

Ultimate high power operation of 9xx-nm single emitter broad stripe laser diodes

SPIE
Date: Jan 28, 2017
Ultimate high power operation of 9xx-nm single emitter broad stripe laser diodes

Design optimization of single emitter broad stripe 9xx-nm laser diodes was studied to achieve ultim…


Advances in semipolar InGaN laser diodes (Conference Presentation)

SPIE
Date: Jan 28, 2017
Advances in semipolar InGaN laser diodes (Conference Presentation)

We present state-of-the-art performance from laser based light sources based on semipolar GaN. Rece…

Application: Projector,Sensor

Evaluation of nanoindentation and nanoscratch characteristics of GaN/InGaN epilayers

ScienceDirect
Date: Jan 23, 2017
Evaluation of nanoindentation and nanoscratch characteristics of GaN/InGaN epilayers

The potential use of thin films in many engineering applications has prompted the mechanical charac…

Application: Others

PAPER (In,Ga,Al)P–GaP laser diodes grown on high-index GaAs surfaces emitting in the green, yellow and bright red spectral range

IOPscience
Date: Jan 20, 2017
PAPER (In,Ga,Al)P–GaP laser diodes grown on high-index GaAs surfaces emitting in the green, yellow and bright red spectral range

We report on low threshold current density (<400 A cm−2) injection lasing in (Al x Ga1–x )0.5In0…

Application: Others

Laser diode structures with a saturable absorber for high-energy picosecond optical pulse generation by combined gain-and Q-switching

IOPscience
Date: Jan 19, 2017
Laser diode structures with a saturable absorber for high-energy picosecond optical pulse generation by combined gain-and Q-switching

The performance of gain-switched Fabry–Perot asymmetric-waveguide semiconductor lasers with a large…

Application: Others,Processing

Demonstration of calibration-free WMS measurement of gas parameters with in-situ real-time characterization of laser parameters using cw-DFB-QCL, VCSEL and DFB lasers

The University of Strathclyde
Date: Jan 17, 2017
Demonstration of calibration-free WMS measurement of gas parameters with in-situ real-time characterization of laser parameters using cw-DFB-QCL, VCSEL and DFB lasers

This paper presents a detailed experimental and theoretical study of a new calibration-free nth har…

Application: Others,Sensor

Coherent and Tunable THz Emission Driven by an Integrated III–V Semiconductor Laser

IEEE
Date: Jan 16, 2017
Coherent and Tunable THz Emission Driven by an Integrated III–V Semiconductor Laser

We demonstrate coherent and tunable THz emission by excitation of a unitraveling-carrier photodiode…

Application: Others,Biology,Telecom

High-order external cavity modes and restabilization of a laser diode subject to a phase-conjugate feedback

OSA Publishing
Date: Jan 15, 2017
High-order external cavity modes and restabilization of a laser diode subject to a phase-conjugate feedback

We experimentally report the sequence of bifurcations destabilizing and restabilizing a laser diode…

Application: Others

Cost-effective tunable laser gas-sensor module for high-volume applications, using DFB laser diodes in the NIR, and ICL in the MIR

IEEE
Date: Jan 9, 2017
Cost-effective tunable laser gas-sensor module for high-volume applications, using DFB laser diodes in the NIR, and ICL in the MIR

This talk gives an insight into the development and the device performance of various tunable Laser…

Application: Others,Sensor

Locking distributed feedback laser diode frequency to gas absorption lines based on genetic programming

SPIE
Date: Jan 6, 2017
Locking distributed feedback laser diode frequency to gas absorption lines based on genetic programming

Distributed feedback laser is widely used as the pump beam and probe beam in atomic physical and qu…

Application: Others,Sensor

High-resolution mirror temperature mapping in GaN-based diode lasers by thermoreflectance spectroscopy

IOPscience
Date: Jan 6, 2017
High-resolution mirror temperature mapping in GaN-based diode lasers by thermoreflectance spectroscopy

In this paper accurate measurements of temperature distribution on the facet of GaN-based diode las…

Application: Others,Sensor

Study on frequency stabilization of diode laser saturated absorption spectroscopy

SPIE
Date: Jan 5, 2017
Study on frequency stabilization of diode laser saturated absorption spectroscopy

With continuous improvements of semiconductor laser performance and semiconductor laser technology,…

Application: Others,Sensor

Analysis of the photon–photon resonance influence on the direct modulation bandwidth of dual-longitudinal-mode distributed feedback lasers

springer.com
Date: Jan 5, 2017
Analysis of the photon–photon resonance influence on the direct modulation bandwidth of dual-longitudinal-mode distributed feedback lasers

The paper explores the possibilities to extend the direct modulation bandwidth in dual-longitudinal…

Application: Others,Telecom

Negative characteristic temperature of GaN-based blue laser diode investigated by numerical simulation

springer.com
Date: Jan 2, 2017
Negative characteristic temperature of GaN-based blue laser diode investigated by numerical simulation

GaN-based blue laser diodes (LDs) may exhibit anomalous temperature characteristics such as a very …

Application: Others,Processing

Optically Pumped DFB Lasers Based on GaN Using 10th-Order Laterally Coupled Surface Gratings

IEEE
Date: Jan 1, 2017

An optically pumped GaN-based laser structure with 10th-order laterally coupled surface grating is …

Application: Others

Semiconductor laser linewidth reduction by six orders of magnitude via delayed optical feedback

OSA Publishing
Date: Jan 1, 2017
Semiconductor laser linewidth reduction by six orders of magnitude via delayed optical feedback

We demonstrate a coherence increase by six orders of magnitude of a standard quantum well semicondu…

Application: Others,Sensor

High peak power cavity dumping semiconductor lasers

OSA Publishing
Date: Jan 1, 2017
High peak power cavity dumping semiconductor lasers

We report on the development of a nanosecond pulsed kW-class optically pumped InGaAs semiconductor …

Application: Others,Sensor,Processing

ML2040 Series High Power Laser Modules

Frankfurt Laser Company
Date: Jan, 2017
ML2040 Series High Power Laser Modules

The laser modules of the ML2040-Series deliver high output power of up to 2W and are ideal for th…

Application: Others

A way of analyzing the radiation pattern of a laser diode operating in the fundamental mode

springer.com
Date: Jan, 2017
A way of analyzing the radiation pattern of a laser diode operating in the fundamental mode

A method is considered and an algorithm is described for detecting the lasing regime of a fundament…

Application: Others

Millimeter-Wave Carrier Embedded Dual-color Laser Diode for 5G MMWoF Link

IEEE
Date: Dec 30, 2016
Millimeter-Wave Carrier Embedded Dual-color Laser Diode for 5G MMWoF Link

With the use of central carrier suppressed master which contains a double sideband carrier, a direc…

Application: Others,Telecom

Simultaneous Generation of Microwave, Millimeter-Wave, and Terahertz Photonic Signal Based on Two-Color Semiconductor Laser Subject to Single-Beam Optical Injection

IEEE
Date: Dec 29, 2016
Simultaneous Generation of Microwave, Millimeter-Wave, and Terahertz Photonic Signal Based on Two-Color Semiconductor Laser Subject to Single-Beam Optical Injection

In this paper, dual-mode semiconductor laser is presented and demonstrated experimentally based on …

Application: Others,Telecom

What Limits the Efficiency of High-Power InGaN/GaN Lasers?

IEEE
Date: Dec 23, 2016
What Limits the Efficiency of High-Power InGaN/GaN Lasers?

Blue light emitting InGaN/GaN lasers currently exhibit less than 40% wall-plug efficiency, while in…

Application: Others,DPSS Laser

Design and fabrication of widely tunable sampled grating DFB laser diode integrated with sampled grating distributed Bragg reflector

Wiley Online Library
Date: Dec 22, 2016
Design and fabrication of widely tunable sampled grating DFB laser diode integrated with sampled grating distributed Bragg reflector

A sampled grating distributed feedback (SGDFB) laser diode integrated with a sampled grating distri…

Application: Others,Sensor,Telecom

Synthesis of a 30-Hz Linewidth Wave Tunable Over 500 GHz

IEEE
Date: Dec 22, 2016
Synthesis of a 30-Hz Linewidth Wave Tunable Over 500 GHz

We report on a compact source of 30-Hz linewidth, low-phase noise electrical waves with 500-GHz tun…

Application: Others,Telecom,Sensor

A Compact Two-Wavelength Time-Domain NIRS System Based on SiPM and Pulsed Diode Lasers

IEEE
Date: Dec 21, 2016
A Compact Two-Wavelength Time-Domain NIRS System Based on SiPM and Pulsed Diode Lasers

This paper presents a complete, compact, and low power consumption instrument designed for time-dom…

Application: Others,Sensor,Biology

A novel approach for generating flat optical frequency comb based on externally injected gain-switching distributed feedback semiconductor laser

IOPscience
Date: Dec 20, 2016
A novel approach for generating flat optical frequency comb based on externally injected gain-switching distributed feedback semiconductor laser

In this paper, a novel approach for generating flat optical frequency comb (OFC) based on externall…

Application: Others,Sensor

Concealment of time delay signature of chaotic output in a slave semiconductor laser with chaos laser injection

ScienceDirect
Date: Dec 15, 2016

An improved chaotic laser system, which has a slave semiconductor laser (SL) injected by a master S…

Application: Others

Theory of direct and indirect effect of two-photon absorption on nonlinear optical losses in high power semiconductor lasers

IOPscience
Date: Dec 13, 2016
Theory of direct and indirect effect of two-photon absorption on nonlinear optical losses in high power semiconductor lasers

The effect of the transverse laser structure on two-photon absorption (TPA) related effects in high…

Application: Others,Processing

43 Gb/s NRZ-OOK Direct Modulation of a Heterogeneously Integrated InP/Si DFB Laser

IEEE
Date: Dec 12, 2016
43 Gb/s NRZ-OOK Direct Modulation of a Heterogeneously Integrated InP/Si DFB Laser

We discuss how InP membrane laser diodes, heterogeneously integrated on SOI can be designed for hig…

Application: Others,Telecom

Angled-cavity lasers with photonic-crystal structure and high-order surface gratings

IOPscience
Date: Dec 9, 2016
Angled-cavity lasers with photonic-crystal structure and high-order surface gratings

980 nm angled-cavity laser diodes with photonic-crystal structures and high-order surface gratings …

Application: Others,Sensor

Angled-cavity lasers with photonic-crystal structure and high-order surface gratings

IOPscience
Date: Dec 9, 2016
Angled-cavity lasers with photonic-crystal structure and high-order surface gratings

980 nm angled-cavity laser diodes with photonic-crystal structures and high-order surface gratings …

Application: Others,Sensor

Designing of TJ VCSEL based on nitride materials

SPIE
Date: Dec 8, 2016
Designing of TJ VCSEL based on nitride materials

Different structures of nitride Vertical-Cavity Surface-Emitting Lasers (VCSELs) have been develope…

Application: Others,Sensor

High power semiconductor laser arrays at 1120 nm

IEEE
Date: Dec 5, 2016
High power semiconductor laser arrays at 1120 nm

Semiconductor laser arrays with a distinct number of ridge waveguides within a parallel geometry ha…

Application: Others,Biology,Sensor

First demonstration of 2 µm wavelength tunable distributed Bragg reflector laser diode

IEEE
Date: Dec 5, 2016
First demonstration of 2 µm wavelength tunable distributed Bragg reflector laser diode

We have developed the first 2 µm wavelength tunable distributed Bragg reflector (DBR) laser diode. …

Application: Others,Sensor

Power saturation in standard and double-AR unfolded laser diode cavities

IEEE
Date: Dec 5, 2016
Power saturation in standard and double-AR unfolded laser diode cavities

We report modeling and experimental results that demonstrate mechanisms limiting the output power o…

Application: Others,Processing

High gain semiconductor optical amplifier — Laser diode at visible wavelength

IEEE
Date: Dec 3, 2016
High gain semiconductor optical amplifier — Laser diode at visible wavelength

We reported on the first experimental demonstration of a two-section semipolar InGaN-based laser di…


Beam shaping for kilowatt fiber-coupled diode lasers by using one-step beam cutting-rotating of prisms

OSA Publishing
Date: Dec 1, 2016
Beam shaping for kilowatt fiber-coupled diode lasers by using one-step beam cutting-rotating of prisms

The beam quality mismatch of laser diode stacks in both axes limits many direct applications for fi…

Application: Others,Processing

Extended Modal Gain Measurement in DFB Laser Diodes

IEEE
Date: Nov 29, 2016
Extended Modal Gain Measurement in DFB Laser Diodes

A practical method is proposed for complete gain measurement in distributed feedback (DFB) laser di…

Application: Others,Sensor