Highly efficient and compact microchip green laser source for mobile projectors

2010 ◽  
Author(s):  
John Khaydarov ◽  
Stepan Essaian ◽  
Greg Nemet ◽  
Andrei Shchegrov ◽  
Natalia Simanovskaia ◽  
...  
Keyword(s):  
Green Laser ◽  
Laser Source ◽  
Highly Efficient

73.4L: Late-News Paper: Miniature, Highly Efficient, and Low Cost Green Laser Source for Pico-Projectors

2011 ◽  
Vol 42 (1) ◽  
pp. 904-907
Author(s):  
Stepan Essaian ◽  
John Khaydarov ◽  
Slav Slavov ◽  
Gevorg Gabrielyan ◽  
Armen Poghosyan ◽  
...  
Keyword(s):  
Low Cost ◽  
Green Laser ◽  
Laser Source ◽  
Highly Efficient ◽  
Late News

Highly efficient single longitudinal mode-pulsed green laser

2013 ◽  
Vol 11 (5) ◽  
pp. 051402-51404 ◽  
Author(s):  
Tingting Lu Tingting Lu ◽  
Juntao Wang Juntao Wang ◽  
Xiaolei Zhu Xiaolei Zhu ◽  
Ren Zhu Ren Zhu ◽  
Huaguo Zang Huaguo Zang ◽  
...  
Keyword(s):  
Longitudinal Mode ◽  
Green Laser ◽  
Single Longitudinal Mode ◽  
Highly Efficient

Compact green laser source using butt-coupling between multi-section DFB-laser and SHG waveguide crystal

2008 ◽  
Vol 44 (25) ◽  
pp. 1463 ◽  
Author(s):  
J. Wiedmann ◽  
O. Brox ◽  
T. Tekin ◽  
F. Scholz ◽  
T. Büttner ◽  
...  
Keyword(s):  
Green Laser ◽  
Laser Source ◽  
Dfb Laser ◽  
Butt Coupling

20.2: High-Efficiency Green Laser Source for Compact Projectors

2009 ◽  
Vol 40 (1) ◽  
pp. 265 ◽  
Author(s):  
John Khaydarov ◽  
Andrei Shchegrov ◽  
Stepan Essaian ◽  
Greg Nemet ◽  
Suren Soghomonyan ◽  
...  
Keyword(s):  
High Efficiency ◽  
Green Laser ◽  
Laser Source

scholarly journals Development of a Frequency Tunable Green Laser Source for Advanced Virgo+ Gravitational Waves Detector

Galaxies ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 87
Author(s):  
Camilla De Rossi ◽  
Jonathan Brooks ◽  
Julia Casanueva Diaz ◽  
Antonino Chiummo ◽  
Eric Genin ◽  
...  
Keyword(s):  
Gravitational Waves ◽  
Optical Cavity ◽  
Green Laser ◽  
Laser Source ◽  
Acquisition Strategy ◽  
Frequency Tunable ◽  
One Year

After one year of data taking, the observing run three (O3), we are preparing for an improved version of the system, named the Advanced Virgo plus. One of the major upgrades will be the installation of the signal recycling mirror to form an additional optical cavity and improve the sensitivity of the interferometer. This also requires a change in the lock acquisition strategy. In particular, the arms will be locked at the beginning with lasers at a different wavelength from the main one. Such a strategy has already been implemented and tested in LIGO and KAGRA, and in this paper we will present how it has been conceived in Virgo.

Ophthalmological Diagnostic Complex Based on a Slit Lamp and Multi-Waves Laser

10.12737/2742 ◽  
2013 ◽  
Vol 20 (4) ◽  
pp. 109-113
Author(s):  
Соболев ◽  
Yu. Sobolev ◽  
Иванов ◽  
A. Ivanov ◽  
Астахов ◽  
...  
Keyword(s):  
Anterior Segment ◽  
Green Laser ◽  
Laser Source ◽  
Slit Lamp ◽  
Laser Trabeculoplasty ◽  
Medical Institutions ◽  
Medical Diagnostic ◽  
Stereoscopic Observation ◽  
Diagnostic Complex ◽  
Technical Features

The paper presents the ophthalmological diagnostic complex based on slit lamp, equipped with equipment for laser pa-nretinal photocoagulation. Pre-existing principle of construction of the ophthalmologic lasers involves a cascade of work of waves of different length, while in the new version of the device the ability to use two waves simultaneously and implementation of adjustment of the intensity of each wavelength. Pattern-scanning laser ophthalmo-coagulator works at two wavelengths 532 nm and 810 nm. Use of multi-waves laser source expands the range of possible applications in the treatment of retinal diseases. Medical-diagnostic complex is intended for stereoscopic observation, investigation of the anterior segment of the eyeball, lens, retina in medical, medical-preventive and research medical institutions and private clinics. This device allows to effectively conduct operations as pattern retinal laser photo-coagulation and laser trabeculoplasty green laser, and transpupilar thermotherapy of choroidal neovascularization, transcleral retinal photocoagulation and ciliary body by means of infrared (IR) laser. In the multi-colored photocoagulator, the technologies of "automatic positioning of the field of coagulation"(PASCAL) are used. The paper discusses the technical features of the instrument and its development prospects.

scholarly journals Physical and Geometrical Properties of Additively Manufactured Pure Copper Samples Using a Green Laser Source

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3642
Author(s):  
Samira Gruber ◽  
Lukas Stepien ◽  
Elena López ◽  
Frank Brueckner ◽  
Christoph Leyens
Keyword(s):  
Electrical Conductivity ◽  
Eddy Current ◽  
Pure Copper ◽  
Current Method ◽  
Negative Influence ◽  
Green Laser ◽  
Laser Source ◽  
Eddy Current Method ◽  
Geometrical Properties ◽  
Laser Systems

So far, copper has been difficult to process via laser powder bed fusion due to low absorption with the frequently used laser systems in the infrared wavelength range. However, green laser systems have emerged recently and offer new opportunities in processing highly reflective materials like pure copper through higher absorptivity. In this study, pure copper powders from two suppliers were tested using the same machine parameter sets to investigate the influence of the powder properties on the material properties such as density, microstructure, and electrical conductivity. Samples of different wall thicknesses were investigated with the eddy-current method to analyze the influence of the sample thickness and surface quality on the measured electrical conductivity. The mechanical properties in three building directions were investigated and the geometrical accuracy of selected geometrical features was analyzed using a benchmark geometry. It could be shown that the generated parts have a relative density of above 99.95% and an electrical conductivity as high as 100% International Annealed Copper Standard (IACS) for both powders could be achieved. Furthermore, the negative influence of a rough surface on the measured eddy-current method was confirmed.

Compact and Highly Efficient 3.8 W Intracavity Frequency-Doubled Nd:YVO4/PPMgLN Green Laser

2011 ◽  
Vol 38 (3) ◽  
pp. 0302007 ◽  
Author(s):  
颜博霞 Yan Boxia ◽  
毕勇 Bi Yong ◽  
王栋栋 Wang Dongdong ◽  
鲍光 Bao Guang ◽  
亓岩 Qi Yan ◽  
...  
Keyword(s):  
Green Laser ◽  
Intracavity Frequency ◽  
Highly Efficient

Green laser sources optimized for highly efficient microdisplay-based field-sequential mobile projectors

2010 ◽  
Vol 18 (8) ◽  
pp. 589 ◽  
Author(s):  
Andrei Shchegrov ◽  
John Khaydarov ◽  
Stepan Essaian ◽  
Greg Nemet ◽  
Suren Soghomonyan ◽  
...  
Keyword(s):  
Green Laser ◽  
Highly Efficient ◽  
Laser Sources
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