Measurement of thermal effects in solid-state laser gain medium by digital holography

The optimization of solid-state laser cavities requires a deep understanding of the gain module, the most critical laser component. This study proposes a procedure for evaluating the performance of the solid-state laser gain module. The thermal effect and energy storage characteristics are the performance criteria. A normalized heating parameter was calculated as a quantitative indicator of the performance criteria. We proposed a method to quantify the heat dissipated into the gain medium using the wavefront distortion, thermal deformation theory of the gain medium, and the ray transfer matrix method. The suggested procedure was verified by evaluating the flashlamp type Nd:YAG rod gain module, but it can also even be extended to other solid-state laser gain modules by applying the appropriate thermal deformation theory.

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Measurement of thermal effects of diode-pumped solid-state laser by using digital holography

Applied Optics ◽

10.1364/ao.57.005385 ◽

2018 ◽

Vol 57 (19) ◽

pp. 5385 ◽

Cited By ~ 1

Author(s):

Yang Yu ◽

Jianglei Di ◽

Weijuan Qu ◽

Anand Asundi

Keyword(s):

Solid State ◽

Thermal Effects ◽

Digital Holography ◽

Solid State Laser ◽

State Laser ◽

Diode Pumped

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Thermal effects of diode-end-pumped Nd:YVO4 solid state laser

10.1117/12.368474 ◽

1999 ◽

Cited By ~ 2

Author(s):

Anand K. Asundi ◽

Xiaoyuan Peng ◽

Yihong Chen ◽

Zhengjun Xiong ◽

Gnian Cher Lim ◽

...

Keyword(s):

Solid State ◽

Thermal Effects ◽

Solid State Laser ◽

State Laser

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Numerical Simulation of Inversion Population Distribution in Diode-End-Pumped Quasi-Three-Level Laser

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.345.338 ◽

2011 ◽

Vol 345 ◽

pp. 338-342

Author(s):

Zhi Zhang Song ◽

Qin An Li ◽

Tao Zhang

Keyword(s):

Numerical Simulation ◽

Solid State ◽

Continuous Wave ◽

Population Distribution ◽

Gain Medium ◽

Solid State Laser ◽

Distribution Model ◽

State Laser ◽

Level Laser

In this paper, the inversion population distribution model in the gain medium are given and simulated numerically corresponding to different cavity conditions for the continuous wave diode-end-pumped quasi-three-level solid-state laser.

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Gratings for Increasing Solid-State Laser Gain and Efficiency

10.2172/1012716 ◽

2010 ◽

Author(s):

A Erlandson ◽

J Britten ◽

J Bonlie

Keyword(s):

Solid State ◽

Solid State Laser ◽

State Laser ◽

Laser Gain

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Study of End Surfaces’ Deformation and Thermal Stress in Solid State Laser

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.110-116.4140 ◽

2011 ◽

Vol 110-116 ◽

pp. 4140-4144

Author(s):

Karimi Moghadam Firoozeh

Keyword(s):

Solid State ◽

Thermal Effects ◽

Thermal Condition ◽

Laser Crystal ◽

Refraction Index ◽

Solid State Laser ◽

Second Order ◽

State Laser ◽

Thermal Distribution ◽

Gaussian Profile

High power solid state lasers have wide applications; they have extensively attracted many attentions. When laser pumped, a lot of heat produces in it causes thermal effects such as stresses end effect and variations of refraction index. In this paper, we analytically study the thermal effects in an Nd: YAG solid state laser crystal which is pumped in longitude with a second order Gaussian (super Gaussian) profile. In this survey we neglect z derivatives of temperature distribution and also consider a statement in which thermal condition of cooler system is much more than thermal condition of laser crystal. Then we apply proper boundary conditions to probe thermal distribution function and related thermal effects. It will be shown that use of second order Gaussian profile for output beam of diode lasers is a better approximation for calculating the thermal distribution and estimating the thermal lensing than the Gaussian profile.

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