Journal ArticleDOI
Thermal Effects in a Nd:YAG Laser
J. D. Foster,L. M. Osterink +1 more
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In this paper, a theoretical model for the thermal lens and birefringent effects induced in a continuously pumped Nd:YAG rod is developed and experimental measurements of these effects using a 6328-A probe are described and compared to theory.Abstract:
A theoretical model for the thermal lens and birefringent effects induced in a continuously pumped Nd:YAG rod is developed. Experimental measurements of these effects using a 6328‐A probe are described and compared to theory. Excellent agreement between the two types of measurements and theory is obtained. The thermally birefringent and bifocusing phenomena are suggested as causes of reductions in the polarized and fundamental TEM00 powers from a high‐power multimode Nd:YAG laser. Typical results are described using a laser which operates in the 200−300‐W range of average powers.read more
Citations
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Journal ArticleDOI
Thermal lens astigmatism in glass and in cubic crystals with [001] orientation.
Alexey Yakovlev,Ilya Snetkov +1 more
TL;DR: The thermal lens was investigated in CaF2 and Tb3Ga5O12 cubic crystals with [001] crystallographic axes orientation and in magneto-optical glass MOG103 by the method of phase-shifting interferometry and it was demonstrated experimentally that the thermal lens has astigmatism determined by the incident radiation polarization state and by the optical anisotropy parameter ξ.
Journal ArticleDOI
Dynamical thermal lensing of high-power solid-state lasers
TL;DR: In this article, the effects of thermal lensing on the overlap integral, diffraction loss, pump threshold, and laser efficiency of the TEM 00 mode for uniformly pumped solid-state lasers with a flat-flat symmetrical cavity are analyzed.
Journal ArticleDOI
Laser-induced anisotropy near a focus
TL;DR: In this paper, the authors show that the refractive index variations in both transverse and longitudinal directions contribute to the phase shift responsible for the depolarization of the laser beam.
Journal ArticleDOI
Compensation for Laser Beam Depolarization by Spatial Light Modulators
TL;DR: In this paper, the authors proposed a new method for compensating the thermally induced depolarization of laser radiation, which is based on using spatial light modulators, and showed that using one modulator, the integral depolarisation degree can be reduced by several times, whereas two modulators make it possible to almost completely rule out depolarizations, regardless of its nature.
Journal ArticleDOI
Adaptive beam reshaping in Kerr optical media with a thermally induced nonlocality
TL;DR: In this paper, the process of beam reshaping induced by thermal lensing is considered for an optical medium with a self-focusing nonlinearity, the refractive index of which possesses an extra nonlocal component caused by thermo-optic effects.
References
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Book
Conduction of Heat in Solids
H. S. Carslaw,John Conrad Jaeger +1 more
TL;DR: In this paper, a classic account describes the known exact solutions of problems of heat flow, with detailed discussion of all the most important boundary value problems, including boundary value maximization.
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TL;DR: In this paper, the physical properties of crystals systematically in tensor notation are presented, presenting tensor properties in terms of their common mathematical basis and the thermodynamic relations between them.
Journal ArticleDOI
Physical Properties of Crystals. By J. F. Nye . Pp. xv, 322, 50s. 1957. (Oxford: Clarendon Press)
Journal ArticleDOI
Long‐Transient Effects in Lasers with Inserted Liquid Samples
TL;DR: In this paper, buildup and decay transients were observed when polar or nonpolar liquid cells were placed within the resonator of a helium-neon laser operating in the red at 6328 A.