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semiconductor laser

Power optimization of semiconductor laser driver using voltage scaling technique

Power optimization of semiconductor laser driver using voltage scaling technique

... silicon semiconductor (HSS) laser driver is designed using voltage scaling ...HSS laser driver is designed using current mode logic (CML) technique, which is widely used technique for designing ...

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High Wall Plug Efficiency 1060 nm High Power Semiconductor Laser

High Wall Plug Efficiency 1060 nm High Power Semiconductor Laser

... the semiconductor laser, this paper designed the epitaxial structure of the high efficiency 1060 nm semiconductor laser, and carried out the fabrication of devices, then obtained the high ...

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A Control System Based on Microprocessor and FPGA for 1470nm High power Semiconductor Laser

A Control System Based on Microprocessor and FPGA for 1470nm High power Semiconductor Laser

... the semiconductor laser has been widely used in industrial, commercial, scientific research, information, military and medical aspects due to its advantages such as light weight, small size, high ...

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Power optimization of semiconductor laser driver using voltage scaling 
		technique

Power optimization of semiconductor laser driver using voltage scaling technique

... silicon semiconductor (HSS) laser driver is designed using voltage scaling ...HSS laser driver is designed using current mode logic (CML) technique, which is widely used technique for designing ...

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Original Article Influence of semiconductor laser irradiation on the rate of orthodontic tooth movement

Original Article Influence of semiconductor laser irradiation on the rate of orthodontic tooth movement

... of semiconductor laser on tooth movement and the ...conductor laser was used to irradiate the area around the moved tooth, and after 3, 7 and 14 days, the amount of tooth movement and root length ...

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The division and bending of green and red semiconductor laser light at the same time

The division and bending of green and red semiconductor laser light at the same time

... the laser light was split and bended using a specially designed glass lenses at the same ...the semiconductor laser as a source of green and red laser diode is ...affect laser light are ...

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Correlated fluctuations in the polarization modes of a vertical-cavity semiconductor laser

Correlated fluctuations in the polarization modes of a vertical-cavity semiconductor laser

... The vertical-cavity surface-emitting laser 共 VCSEL 兲 is a novel type of semiconductor laser with an almost circular geometry and a very short cavity. Benefits of this construc- tion are, for example, ...

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Comprehensive experimental analysis of nonlinear dynamics in an optically-injected semiconductor laser

Comprehensive experimental analysis of nonlinear dynamics in an optically-injected semiconductor laser

... a semiconductor laser under external optical injection based on an analysis of time-averaged measurements of the optical and RF spectra and phasors of real-time series of the laser ...

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Computation of a Point to Point Homoclinic Orbit for a Semiconductor Laser Model

Computation of a Point to Point Homoclinic Orbit for a Semiconductor Laser Model

... The theoretical background of the computational procedure is given in [6] (Sections 2 and 3). More precisely, in the paper mentioned above, the defining equations and important formulae associated with the algorithm ...

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Measurement of the emission spectrum of a semiconductor laser using laser-feedback interferometry

Measurement of the emission spectrum of a semiconductor laser using laser-feedback interferometry

... of laser-feedback interferometry in which changes to the terminal voltage of a semiconductor laser in response to an extension of the external cavity are used to infer the emission spectrum of the ...

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Electrically pumped semiconductor laser with monolithic control of circular polarization

Electrically pumped semiconductor laser with monolithic control of circular polarization

... diode laser with a polyimide quarter wave plate, circularly polarized emission with a high DOCP of 99% was achieved for a planar light wave circuit in ...pumped semiconductor laser with a high DOCP ...

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Pulse formation and dynamics in self pulsating semiconductor laser diodes

Pulse formation and dynamics in self pulsating semiconductor laser diodes

... mono-section laser diodes becomes pinned at the threshold current ...layer). Laser diodes tend to emit predominantly in the in the TE mode, since it has a slightly larger T and a slightly larger facet ...

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An Experimental Study on the  Temperature Characteristic of a 940 nm Semiconductor Laser Diode

An Experimental Study on the Temperature Characteristic of a 940 nm Semiconductor Laser Diode

... of semiconductor laser, which is made from 940 nm InGaAs double-quantum-well epitaxial wafer, produced by Metal Organic Chemical Vapor Deposition ...The laser diode is tested with pulsed las- ...

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A Comparative Study on Beam Divergence Angle and Wave Length Between Semiconductor Laser and Helium-Neon Laser

A Comparative Study on Beam Divergence Angle and Wave Length Between Semiconductor Laser and Helium-Neon Laser

... neon laser. Semiconductor laser, which is electrically pumped ...the laser action occurs in the interference between those two ...A semiconductor laser is used in the field of ...

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Steady State Behavior of Semiconductor Laser Diodes Subject to Arbitrary Levels of External Optical Feedback

Steady State Behavior of Semiconductor Laser Diodes Subject to Arbitrary Levels of External Optical Feedback

... a semiconductor laser subject to arbitrary levels of external optical feedback by means of an iterative travelling-wave (ITW) ...narrow-linewidth laser operation would be possible at high feedback ...

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Effects of Coupling Coefficient on Static Properties of Bistable Qws-DFB Semiconductor Laser Amplifiers

Effects of Coupling Coefficient on Static Properties of Bistable Qws-DFB Semiconductor Laser Amplifiers

... Abstract—We previously analyzed the effects of trapezoidal tapered gratings on the dispersive bistable characteristics of a quarter wavelength phase-shifted distributed feedback semiconductor laser ...

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Temperature Control of Semiconductor LASER Using Different Controllers

Temperature Control of Semiconductor LASER Using Different Controllers

... the semiconductor laser. The output wavelength of semiconductor laser changes with change in ...affects semiconductor laser accuracy and its service ...the semiconductor ...

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An organic semiconductor laser platform for the detection of DNA by AgNP plasmonic enhancement

An organic semiconductor laser platform for the detection of DNA by AgNP plasmonic enhancement

... DFB Laser Fabrication. The DFB lasers are made of a thin layer of gain material deposited on top of an epoxy grating. The grating enables feedback for laser oscillation but also provides outcoupling of the ...

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Electron Microscopy Studies of Non Local Effects' Impact on Cathodoluminescence of Semiconductor Laser Structures

Electron Microscopy Studies of Non Local Effects' Impact on Cathodoluminescence of Semiconductor Laser Structures

... The structure of laser diode is designed to assure the recombination of carriers within the active region. For this purpose the very thin low-bandgap InGaAs layer is sand- wiched between two high-bandgap layers in ...

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How the carrier momentum influences the polarization properties of a vertical-cavity semiconductor laser

How the carrier momentum influences the polarization properties of a vertical-cavity semiconductor laser

... Birefringence and dichroism are linear anisotropies, i.e., they do not depend on saturation of the inversion in the VCSEL gain medium. There are, however, also nonlinear ~ saturation induced ! anisotropies. These ...

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