Research on Discretely Tunable Nd:YAG Ceramic Material

2012 ◽  
Vol 531 ◽  
pp. 133-136
Author(s):  
Lei Li ◽  
Xing Yu Zhang ◽  
Zhao Jun Liu ◽  
Qing Pu Wang ◽  
Xue Bin Wan ◽  
...  
Keyword(s):  
Pump Power ◽  
Ceramic Material ◽  
Nd:Yag Laser ◽  
Laser Source ◽  
Diode Pump ◽  
Average Output

A diode-end-pumped ceramic Nd:YAG laser discretely tunable for five wavelengths was demonstrated. The tunability was obtained by a blazing grating in Littrow mode, and the laser was discretely tuned from 1052 nm to 1073 nm. Under the diode pump power of 4.59 W, the average output powers at five wavelengths were all over 1 W. The laser source may find applications in spectroscopy and metrology.

scholarly journals THE INVESTIGATION OF THERMAL LENS PROPERTIES IN THE ACTIVE ELEMENT OF LASER AMPLIFIER WITH HIGH POWER DIODE PUMP

2019 ◽  
Vol 8 ◽  
pp. 3-9
Author(s):  
Gleb Kuptsov ◽  
Alexei Laptev ◽  
Vladimir Petrov ◽  
Victor Petrov ◽  
Efim Pestryakov
Keyword(s):  
Pump Power ◽  
High Power ◽  
Thermal Lens ◽  
Active Element ◽  
Laser System ◽  
Diode Pump ◽  
Average Output ◽  
Focal Distance ◽  
Laser Amplifiers ◽  
Laser Amplification

A femtosecond laser system with a pulse repetition rate up to 1 kHz is being developed at the Institute of Laser Physics of the SB RAS. The key component of the system is the channel of laser amplification based on media doped with Yb3+ ions. The designed average output power of the channel is 300 W. Thermal effects in high-power laser amplifiers are decisive for the parameters of the radiation at the output of system. In this paper the results of experimental measurements of thermal lens focal distance dependence in Yb:YAG active element on diode pump power using geometric method are given. Calculation of the dependence thermal lens focal distance on the power of pump power and a comparison with experimental data are given.

scholarly journals Development of a Thulium Fiber Laser for an Atomic Spectroscopy Experiment

Fibers ◽  
2020 ◽  
Vol 8 (2) ◽  
pp. 12
Author(s):  
Ronnie Currey ◽  
Ali Khademian ◽  
David Shiner
Keyword(s):  
Pump Power ◽  
Fiber Laser ◽  
Background Level ◽  
Atomic Spectroscopy ◽  
Laser Source ◽  
Spectroscopy Experiment ◽  
Simplified Analysis ◽  
Level 1 ◽  
Thulium Fiber Laser ◽  
Atomic Helium

A convenient thulium fiber laser source is described with 3 W of output power operating at a wavelength of 2059 nm with a slope efficiency of 49% with respect to input pump power and 60% with respect to absorbed pump power. The laser was applied in an atomic helium spectroscopy experiment to quench 3He (2058.63 nm) and 4He (2058.69 nm) meta-stable singlets (21S0), allowing for further investigation of the helium fine structure. The customized laser effectively eliminates the singlet counts to well below a background level (1%). A simplified analysis describes the basic laser performance with fitted constants in reasonable agreement with previous work.

Diode-Pumped Passive Q-Switched 946-nm Nd:YAG Laser with 2.1-W Average Output Power

2005 ◽  
Vol 22 (6) ◽  
pp. 1420-1422 ◽  
Author(s):  
Zhang Ling ◽  
Li Chun-Yong ◽  
Feng Bao-Hua ◽  
Wei Zhi-Yi ◽  
Li De-Hua ◽  
...  
Keyword(s):  
Output Power ◽  
Nd:Yag Laser ◽  
Average Output Power ◽  
Average Output ◽  
Diode Pumped

Improved performance of the Glasgow 10 m prototype gravitational wave detector using an injection-locked Nd:YAG laser source

2001 ◽  
Vol 287 (1-2) ◽  
pp. 62-64 ◽  
Author(s):  
D.A. Clubley ◽  
K.D. Skeldon ◽  
G.P. Newton ◽  
B.W. Barr ◽  
K.A. Strain ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Nd:Yag Laser ◽  
Laser Source ◽  
Gravitational Wave Detector ◽  
Wave Detector ◽  
Improved Performance

A Numerical and Experimental Study of Sheet Metal Bending by Pulsed Nd:Yag Laser with DOE Method

2009 ◽  
Vol 83-86 ◽  
pp. 1076-1083 ◽  
Author(s):  
M. Hosseinpour Gollo ◽  
Hassan Moslemi Naeini ◽  
G.H. Liaghat ◽  
S. Jelvani ◽  
M.J. Torkamany
Keyword(s):  
Experimental Study ◽  
Sheet Metal ◽  
Nd:Yag Laser ◽  
Metal Forming ◽  
Flexible Manufacturing ◽  
Three Dimensional ◽  
Laser Source ◽  
Laser Forming ◽  
Beam Diameter ◽  
Doubly Curved

Metal forming by a laser source is an efficient and economical method for forming sheet metal into straight bend and doubly curved shape. It can be most useful in the automation of sheet metal forming. This paper presents an FEM model for three dimensional thermo-mechanical simulation of the laser forming. The aim of this simulation and experimental study is to identify the response related to deformation and characterize the effects of process parameters such as laser power, beam diameter, scans velocity and pulse duration, in terms of bending angle for a square sheet part. Extensive experimentation, including a design of experiments, is performed to address the above-mentioned aims. From these experiments it has been determined that laser forming using Nd:YAG laser is a flexible manufacturing process for steel sheet bending.

A PHASE CONJUGATE Nd:YAG LASER WITH BEAM STEERING

1993 ◽  
Vol 02 (02) ◽  
pp. 229-245 ◽  
Author(s):  
F. DIZIER ◽  
J.-L. AYRAL ◽  
J. MONTEL ◽  
J.-P. HUIGNARD
Keyword(s):  
Nd:Yag Laser ◽  
Beam Steering ◽  
High Energy ◽  
Laser Source ◽  
Access Time ◽  
Nitrogen Gas ◽  
Phase Conjugate ◽  
Competitive Effects ◽  
Energy Beam ◽  
The Stability

We analyse the competitive effects which alter the stability of SBS phase conjugate mirrors when the laser operates at repetition rates between 10 and 30 Hz. Satisfactory results are obtained with nitrogen gas cell at 180 Atm. We also propose and experimentally demonstrate a SBS phase-conjugate Nd:YAG laser source with a beam steering function. The laser, designed as an oscillator-amplifier configuration, incorporates a TeO 2 acousto-optic deflector on the low energy beam. The high energy beam (100–185 mJ) is thus deflected over 2.7° and 40 resolved beam directions are obtained with 5 µs access time.

Compositional Analysis of Polychromes by Laser-Induced Breakdown Spectroscopy

2008 ◽  
Vol 587-588 ◽  
pp. 657-661 ◽  
Author(s):  
Ana J. López ◽  
Mari Paz Mateo ◽  
Ana Santaclara ◽  
Armando Yáñez
Keyword(s):  
Nd:Yag Laser ◽  
Compositional Analysis ◽  
Laser Source ◽  
Laser Induced Breakdown Spectroscopy ◽  
Depth Profiles ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

This study deals with the analysis and characterization of wood polychromes by means of Laser-Induced Breakdown Spectroscopy (LIBS). Specimens from a Baroque altarpiece have been analyzed by using a Q-switched Nd:YAG laser source at the wavelength of 355 nm. Previously, a library of characteristic LIBS spectra of the most commonly used pigments and other materials involved was obtained. The knowledge of these spectra allowed us to identify the main constituents of the different layers in polychromes and to obtain compositional depth profiles.

Sign in / Sign up

Export Citation Format

Share Document