Longitudinal coupled‐cavity scheme for microwave‐excited CO<sub>2</sub> slab lasers

Shahadi, A.; Sintov, Yoav; Jerby, E.

doi:10.1002/mop.10692

Cited by 7 publications

(2 citation statements)

References 20 publications

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“…The method and results presented in this paper provide a design tool for the development of microwave-excited CO 2 lasers. In particular, they were implemented in the development of a compact medium-power CO 2 laser [21] in our laboratory.…”

Section: Discussionmentioning

confidence: 99%

Thermal-instability considerations for pulsed microwave-excited CO₂slab lasers

Sintov

Shahadi

2000

J. Phys. D: Appl. Phys.

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The effect of thermal instabilities on the performance of sealed-off microwave-excited CO2 slab lasers is analysed. The evolution time of the thermal instability (τ) is estimated for both helium-rich and -poor mixtures. The analysis is based on a simplified discharge model. The dependence of τ on the reduced field (E/N), the discharge gap, the gas pressure, and the ballast-strip characteristics is derived for helium-rich and -poor mixtures. Equating τ and tp, the temperature rise time from ambient to a most efficient gas-discharge temperature, results in an optimal ballast-strip capacitance. This result is found to be independent of the gas mixture and pressure. Two examples for optimized ballast dielectric strips (fused quartz and alumina) are presented.

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Section: Discussionmentioning

confidence: 99%

Thermal-instability considerations for pulsed microwave-excited CO₂slab lasers

Sintov

Shahadi

2000

J. Phys. D: Appl. Phys.

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“…In a microwave range wavelength factor becomes more essential due to a shorter wavelength of a pumping microwave. Application of half-wave microwave resonators [1] limits the linear sizes of the laser medium and at the same time doesn't provide uniformity of excitation due to non-uniform distribution of an electromagnetic field in the microwave half-wave resonator. Application of ridged structures [2] has led to some improvement of distribution of a microwave field; but homogeneity of microwave field distribution remained unsatisfactory.…”

Section: Introductionmentioning

confidence: 99%

Lumped element resonator for use in gas laser microwave excitation

Arakelyan

Manucharyan

2010

SPIE Proceedings

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A new microwave-exciting scheme useful for gas laser, especially for CO 2 slab lasers is offered. A lumped circuit resonator like loop-gap resonator gives opportunity to get extremely homogeneous electromagnetic field and therefore a homogeneous discharge for gas laser application, narrow discharge gap and easy matching a microwave source and resonator. The some physical and the associated technical problems of the transverse microwave discharge for an excitation of diffusion cooled gas laser are discussed.

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