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quantum well vertical cavity laser

Time-Domain Travelling-Wave Model for Quantum Dot Based Vertical Cavity Laser Devices

Time-Domain Travelling-Wave Model for Quantum Dot Based Vertical Cavity Laser Devices

... The cavity extends between interface numbers 62 and ...At cavity edges, real parts of A F and A B are nearly equal representing nearly unity reflection coefficients from ...the cavity by − j exp[ − ...

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Structural Analysis of InGaAs Based Vertical Cavity Surface-Emitting Quantum Well Laser

Structural Analysis of InGaAs Based Vertical Cavity Surface-Emitting Quantum Well Laser

... Md. Mottaleb Hossain received the Bachelor of Science (B. Sc.) degree in Electrical & Electronic Engineering (EEE) from Khulna University of Engineering & Technology (KUET), Bangladesh in 2009. He is involved in ...

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Femtosecond synchronously mode-locked vertical-external cavity surface-emitting laser

Femtosecond synchronously mode-locked vertical-external cavity surface-emitting laser

... pumped vertical-external cavity surface-emitting lasers (VECSEL) [1] combine the advantages of multiple quantum well semiconductor lasers with optical ...multiple quantum well ...

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Quantum modeling of semiconductor gain materials and vertical-external-cavity surface-emitting laser systems

Quantum modeling of semiconductor gain materials and vertical-external-cavity surface-emitting laser systems

... Subplots (b–d) present the corresponding plasma tem- perature, carrier density and N Eq for the first conduc- tion band. In analogy to the wavelength considerations of Fig. 20, the characteristics of the temperature, ...

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Design of a LW-VCSEL Optical Source

Design of a LW-VCSEL Optical Source

... The vertical cavity surface emitting laser (VCSEL) is a low cost light source with attractive performance characteristics such as low power consumption, high speed capabilities at low currents, and a ...

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Calculating Threshold Current Density and Output Power of Vertical Cavity Surface Emitting Laser

Calculating Threshold Current Density and Output Power of Vertical Cavity Surface Emitting Laser

... the vertical cavity surface emitting laser is analytically calculated as a function of different electrical and optical parameters, and their interdependency is also ...studied. Quantum ...

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Optical Design Of Dilute Nitride Quantum Wells Vertical Cavity Semiconductor Optical Amplifiers For Communication Systems

Optical Design Of Dilute Nitride Quantum Wells Vertical Cavity Semiconductor Optical Amplifiers For Communication Systems

... performance laser diodes among which are vertical cavity surface emitting lasers (VCSELs) emitting in ...technology. Vertical cavity semiconductor optical amplifiers (VCSOAs) are ...

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Vertical external cavity semiconductor lasers

Vertical external cavity semiconductor lasers

... this laser used no post-growth processing of any kind to reduce thermal impedance: the back surface of the intact substrate of the gain structure was made to contact a Peltier cooler using thermally conductive ...

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Dynamics of a vertical cavity quantum cascade phonon laser structure

Dynamics of a vertical cavity quantum cascade phonon laser structure

... acoustic cavity is ...the cavity, the vertical cavity structure we have made is theoretically capable of achieving and sustaining phonon oscillation when pumped above a ...the ...

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Femtosecond synchronously in-well pumped vertical-external-cavity surface-emitting laser

Femtosecond synchronously in-well pumped vertical-external-cavity surface-emitting laser

... The schematic structure of the VECSEL gain element and the laser cavity are shown in Fig. 1. The VECSEL wafer used in this work was grown by MOCVD. It was originally designed for conventional barrier ...

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... Semiconductor lasers have become ubiquitous de- vices in today’s modern high-tech society. They can be found in familiar devices such as bar-code scanners used in supermarkets, laser printers in offices, compact ...

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A Long Haul Carrier Generated Ultra Dense Passive Optical Network Incorporating Low Cost VCSEL

A Long Haul Carrier Generated Ultra Dense Passive Optical Network Incorporating Low Cost VCSEL

... DFB laser further increase cost of the system due to large sources needed in WDM ...febry-parrot laser is used to generate 80 carriers for downstream and upstream ...

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Free-space optics mode-wavelength division multiplexing system using LG modes based on decision feedback equalization

Free-space optics mode-wavelength division multiplexing system using LG modes based on decision feedback equalization

... A FSO MWDM system of seven Laguerre-Gaussian (LG) modes based on DFE has been simulated in OptSim [26] and exhibited illustratively in Fig. 1. The FSO MWDM system consists of three parts; transmitter, FSO channel, and ...

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Research on Photoelectric Characteristics of VCSEL

Research on Photoelectric Characteristics of VCSEL

... 𝑉 = 1.400 + 0.4424𝐼 − 0.105𝐼 2 + 1.425 × 10 −2 𝐼 3 − 9.150 × 10 −4 𝐼 4 + 2.233 × 10 −5 𝐼 5 . (7) Where the unit of current is mA. Besides, the comparison between the fitted curve and the experimental values is shown in ...

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Ultrafast circular polarization oscillations in spin-polarized vertical-cavity surface-emitting laser devices

Ultrafast circular polarization oscillations in spin-polarized vertical-cavity surface-emitting laser devices

... Titanium:Sapphire laser at an excitation wavelength of 770nm with a repetition rate of ...the laser pulse after transmission through the single-mode fiber was ...

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Spin induced gigahertz polarization oscillations in vertical-cavity surface-emitting laser devices

Spin induced gigahertz polarization oscillations in vertical-cavity surface-emitting laser devices

... pumped vertical-cavity surface-emitting laser with optically spin induced carriers at room ...the cavity anisotropy, which should be carefully controlled, to exploit the potential of spin ...

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Ultrashort pulse generation from quantum dot semiconductor diode lasers

Ultrashort pulse generation from quantum dot semiconductor diode lasers

... To achieve higher repetition rates in mode-locked lasers it is necessary to decrease the cavity length. This poses a significant challenge to QD lasers because of their lower gain and the operation in short ...

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Laser cavity-soliton microcombs

Laser cavity-soliton microcombs

... fibre cavity (cavity ...the laser-gain bandwidth, sustains in the micro-cavity the existence of a pulse which is broadened by the Kerr nonlinearity over the gain bandwidth ...

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Temperature dependence of spontaneous switch-on and switch-off of laser cavity solitons in vertical-cavity surface-emitting lasers with frequency-selective feedback

Temperature dependence of spontaneous switch-on and switch-off of laser cavity solitons in vertical-cavity surface-emitting lasers with frequency-selective feedback

... when increasing the gain parameter in the forward scan. In Fig. 13, a double-peak structure is the first one to appear in a wide, flat trap followed progressively by structures with more and more peaks. Once the scan ...

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Spectral and temporal control of Q-switched solid-state lasers using intracavity MEMS

Spectral and temporal control of Q-switched solid-state lasers using intracavity MEMS

... Nd:YAG laser and the spectral behavior of an Yb:KGW ...Nd:YAG laser was investigated using two micromirror designs as tuning ...enabled laser Q- switching with tunable pulse duration between 370 ns ...

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