scholarly journals Numerical Study of Transient Temperature Distribution in Passively Q-Switched Yb:YAG Solid-State Laser

2014 ◽  
Vol 04 (03) ◽  
pp. 46-53
Author(s):  
Jala M. El-Azab ◽  
Hamed M. Kandel ◽  
Mohamed A. Khedr ◽  
Hatem M. El-Ghandoor
Keyword(s):  
Temperature Distribution ◽  
Solid State ◽  
Numerical Study ◽  
Solid State Laser ◽  
Transient Temperature ◽  
State Laser ◽  
Transient Temperature Distribution

An analysis of the temperature distribution in finite solid-state laser rods

1988 ◽  
Vol 24 (11) ◽  
pp. 2253-2263 ◽  
Author(s):  
U.O. Farrukh ◽  
A.M. Buoncristiani ◽  
C.E. Byvik
Keyword(s):  
Temperature Distribution ◽  
Solid State ◽  
Solid State Laser ◽  
State Laser

scholarly journals Corrigendum: Transient analytical solution of temperature distribution and fracture limits in pulsed solid-state laser rod by Khalid S. Shibib, Mohammed A. Munshid, Mohammed Jalal Abdul Rayyak, and Luma Hasan Salman* , doi reference: https://doi.org/10.2298/TSCI141011090S

2017 ◽  
Vol 21 (4) ◽  
pp. 1880-1880
Author(s):  
E Editorial
Keyword(s):  
Temperature Distribution ◽  
Solid State ◽  
Analytical Solution ◽  
Editorial Staff ◽  
Solid State Laser ◽  
State Laser ◽  
University Of Technology ◽  
Engineering Department ◽  
Typing Error ◽  
Font Color

Simeon Oka, Editor-in-Chief of the journal Thermal Science request that it is necessary to name of the 3rd author of the paper TRANSIENT ANALYTICAL SOLUTION OF TEMPERATURE DISTRIBUTION AND FRACTURE LIMITS IN PULSED SOLID-STATE LASER ROD by Khalid S. SHIBIB, Mohammed A. MUNSHID, Mohammed Jalal ABDUL RAYYAK, and Luma Hasan SALMAN* Laser and Optoelectronics Engineering Department, University of Technology, Baghdad, Iraq published in the journal Thermal Science, Year 2017, Vol. 21, No. 3, pp. 1213-1222 since due to typing error of the Editorial staff, name of the 3rd author was not correctly written. Name of the 3rd author written as Mohammed Jalal ABDUL RAYYAK has to be written as: Mohammed Jalal ABDULRAZZAQ <br><br><font color="red"><b> Link to the corrected article <u><a href="http://dx.doi.org/10.2298/TSCI141011090S">10.2298/TSCI141011090S</a></b></u>

scholarly journals Transient analytical solution of temperature distribution and fracture limits in pulsed solid-state laser rod

2017 ◽  
Vol 21 (3) ◽  
pp. 1213-1222 ◽  
Author(s):  
Khalid Shibib ◽  
Mohammed Munshid ◽  
Mohammed Abdul-Rayyak ◽  
Luma Salman
Keyword(s):  
Solid State ◽  
Analytical Solution ◽  
Duty Cycle ◽  
Pulse Width ◽  
Solid State Laser ◽  
Transient Temperature ◽  
Published Data ◽  
Maximum Output ◽  
Pumping Power ◽  
State Laser

The exact analytical solution of axis-symmetry transient temperature and Tresca failure stress in pulsed mode solid-state laser rod is derived using integral transform method. The result obtained from this work is compared with previously published data and good agreement is found. The effect of increasing period is studied, and it is found that at constant pulse width as the period is increased, the allowable pumping power is increased too. Furthermore, the effect of changing pulse width with a constant period is studied, and it is found that as the pulse width is increased, the allowable pumping power is decreased. The effect of duty cycle is studied also and it is found that as duty cycle is increased the allowable pumping power is decreased. This work permits proper selection of pulse width, period and duty cycle to avoid laser rod fracture while obtaining maximum output laser power in the designing of laser system. <br><br><font color="red"><b> This article has been corrected. Link to the correction <u><a href="http://dx.doi.org/10.2298/TSCI170731162E">10.2298/TSCI170731162E</a><u></b></font>

scholarly journals Cystal end temperature distribution under different pumping light in solid state laser

2008 ◽  
Vol 57 (1) ◽  
pp. 223
Author(s):  
Yang Yong-Ming ◽  
Xu Qi-Ming ◽  
Guo Zhen
Keyword(s):  
Temperature Distribution ◽  
Solid State ◽  
Solid State Laser ◽  
State Laser

scholarly journals Nano-Scale Vee Yagi-UDA Antenna Based Nano Shell-Silver Coated Silica for Tunable Solid –State Laser Applications

2019 ◽  
Vol 12 (1) ◽  
pp. 1-6
Author(s):  
Taha A. Elwi
Keyword(s):  
Solid State ◽  
Numerical Study ◽  
Solid State Laser ◽  
Laser Applications ◽  
Hetero Structure ◽  
State Laser ◽  
Nano Scale ◽  
Resonance Modes ◽  
Finite Integral ◽  
Simulator Technology

A numerical study on the performance of the nano-scale antenna based on VeeYagi-Uda geometry that is constructed from Nano Shell-Silver Coated Silica (NSSCS) chains is investigated for tunable solid-state laser applications. In this study, a Finite Integral Technique (FIT) based on the formulations of Computer Simulator Technology-MicroWave Studio (CST MWS) software package is invoked to evaluate the antenna parameters such as: Reflection coefficient (S11), gain/ directivity, and directivity. Before conducting the simulation study, the refractive index properties of the NSSCS are evaluated according to Lorentz distribution function of a hetero-structure junction. The proposed antenna shows three resonance modes at 75 THz, and 175 THz, and 266 THz. It is found the best antenna matching, S11<-10dB, at 75 THz and 175 THz about -23 dB and -15 dB, respectively. However, at 266 THz, it is found -3 dB in max. The antenna shows acceptable gain values at the three considered frequencies about 2.5 dBi, 3.5 dBi, and 2 dBi, consistently. Therefore, the antenna exhibits a high directivity at 175 THz and 266 THz in comparison to the first mode at 75 THz. Next, a matching circuit is coupled to a nano-circuitry to tune antenna around 175 THz. The maximum emitted electric field is found to be around 175 THz. Finally, it is found that the introduction of the matching circuit has a significant tuning ability on the second mode at 175 THz; however, at the other two modes the tuning does not show a significant change

Optimization of pump size in a solid-state laser considering the temperature distribution in a laser medium

2015 ◽  
Vol 54 (27) ◽  
pp. 8087 ◽  
Author(s):  
Yaoting Wang ◽  
Ruihong Zhang ◽  
Jinhui Li ◽  
Wujun Li
Keyword(s):  
Temperature Distribution ◽  
Solid State ◽  
Solid State Laser ◽  
Laser Medium ◽  
State Laser

Temperature Distribution in a Diode End-Pumped Solid State Laser Slab Subject to Two-Phase Spray Cooling

Volume 3 ◽  
2004 ◽  
Author(s):  
Brian E. Tews ◽  
Gregory S. Cole ◽  
R. Paul Roth ◽  
Kunal Mitra
Keyword(s):  
Temperature Distribution ◽  
Solid State ◽  
Thermal Management ◽  
Spray Cooling ◽  
Solid State Laser ◽  
Heat Fluxes ◽  
Solid State Lasers ◽  
Transfer Coefficients ◽  
Two Phase ◽  
State Laser

As diode pumped solid-state lasers become more powerful, improved thermal management techniques are required. Minimizing thermal gradients in the laser increases performance and reduces thermal stress, which can cause failure by fracturing. Two-phase sprays provide an isothermal cooling method capable of dissipating high heat fluxes produced by the laser. A three-dimensional model of a spray-cooled, end-pumped solid-state laser has been developed to examine the temperature distribution within the laser slab. The model includes variable multi-nozzle arrangements, spatial distribution of two-phase heat transfer coefficients within each spray pattern, and non-uniform heat generation. A study has been conducted to minimize the range of surface temperatures across the slab by varying nozzle spacing. Two-dimensional temperature profiles at the sprayed surface and at the slab mid-plane have been generated. Results indicate that two-phase spray cooling can remove large heat fluxes and maintain temperature variations within acceptable limits. A new technique for designing and analyzing two-phase thermal management systems for solid-state lasers has been developed.

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