Results 31 to 40 of about 242,280 (338)

Coexistence of thermal noise and squeezing in the intensity fluctuations of small laser diodes

open access: yes, 2000
The intensity fluctuations of laser light are derived from photon number rate equations. In the limit of short times, the photon statistics for small laser devices such as typical semiconductor laser diodes show thermal characteristics even above ...
Eschmann   +15 more
core   +1 more source

Coherence Cloning Using Semiconductor Laser Optical Phase-Lock Loops [PDF]

open access: yes, 2009
We demonstrate the concept of coherence cloning where the coherence properties of a high-quality spectrally stabilized fiber laser are transferred to a commercially available high-power DFB semiconductor laser (SCL) using an optical phase-lock loop.
Liang, Wei, Satyan, Naresh, Yariv, Amnon
core   +1 more source

Finite-time Synchronization Transmission Technology of Signal based on Semiconductor Laser

open access: yesGuangtongxin yanjiu, 2021
A new method is proposed to solve the problem of finite-time synchronization transmission of signal in the current modulated semiconductor laser. Firstly, the characteristics of current modulated semiconductor laser are analyzed theoretically.
Li-na ZHAO, Qing-tao WEI, Ling Lü
doaj   +3 more sources

Magnon activation by hot electrons via non-quasiparticle states [PDF]

open access: yes, 2017
We consider the situation when a femtosecond laser pulse creates a hot electron state in half-metallic ferromagnet (e. g. ferromagnetic semiconductor) on a picosecond timescale but do not act directly on localized spin system. We show that the energy and
Brener, S.   +3 more
core   +2 more sources

DEVELOPMENT OF TRANSMYOCARDIAL LASER REVASCULARIZATION IN PATIENTS WITH ISCHEMIC HEART DISEASE

open access: yesAlʹmanah Kliničeskoj Mediciny, 2016
The use of laser radiation in cardiac surgery allows to provide more effective and targeted care for patients with ischemic heart disease. The article summarizes the multistage teamwork of several research centers in Tomsk on determination of the most ...
V. M. Shipulin   +4 more
doaj   +1 more source

SILICON SURFACE MICROSTRUCTURING BY SINGLE-EXPOSURE FEMTOSECOND DOUBLE LASER PULSE [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2019
Subject of Research. The paper evaluates the possibility of periodic microstructures formation on the silicon surface by single-exposure double femtosecond laser pulse. Method.
E. V. Kuzmin   +3 more
doaj   +1 more source

Review of 1.55 μm Waveband Integrated External Cavity Tunable Diode Lasers

open access: yesPhotonics, 2023
The 1.55 μm waveband integrated external cavity tunable diode lasers have excellent merits such as their small volume, low cost, low power consumption, wide tuning range, narrow linewidth, large side mode suppression ratio, and high output power.
Linyu Zhang   +13 more
doaj   +1 more source

Structural Design and Experimental Investigation of a 1.65 µm Tapered Semiconductor Laser with InGaAlAs MQWs (On InP)

open access: yesPhotonics
This paper presents the design and fabrication of a 1.65 μm tapered semiconductor laser based on an InGaAlAs multiple quantum well structure (grown) on InP.
Yuan Feng   +7 more
doaj   +1 more source

Integrated electroplated heat spreaders for high power semiconductor lasers [PDF]

open access: yes, 2008
Thermal management of high power semiconductor lasers is challenging due to the low thermal conductivity of the laser substrate and the active device layers. In this work, we demonstrate the use of a microfabricated laser test device to study the thermal
Chen, Gang   +4 more
core   +1 more source

A 550 W high-brightness and low-SWaP fiber-coupled pump enabled by double-junction diode chips

open access: yesHigh Power Laser Science and Engineering
Fiber-coupled laser pumps with low size, weight and power consumption (SWaP) have become more and more compelling for applications in both industrial and defense applications.
Liping Qiu   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy