Laser Host Materials and Emission Wavelengths Quiz

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Er:YAG laser emits light with a wavelength of 2.94 µm

True

Titanium sapphire laser produces light mainly in the ultraviolet spectrum

False

Chromium (III) ions are commonly used in lasers that emit light at 2.1 µm wavelengths

False

Nd:YAG laser emits light in the visible spectrum range

False Signup and view all the answers

Ytterbium-doped YAG crystals are known to produce light at 1030 nm

True Signup and view all the answers

Cr4+ ions are commonly used in forsterite lasers emitting light at 1.1–1.37 µm wavelengths

False Signup and view all the answers

Solid state lasers always use semi-conductors as the active media.

False Signup and view all the answers

Nd:YAG is the abbreviation for neodymium-doped yttrium aluminum garnet.

True Signup and view all the answers

Thin-disk lasers based on Yb:YAG can reach efficiencies above 60%.

False Signup and view all the answers

Glass systems generally outperform crystalline hosts in high energy output applications

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Ruby lasers are commonly used in deep penetration welding applications.

False Signup and view all the answers

Argon ion lasers generally have wall-plug efficiencies around or below 0.1%.

True Signup and view all the answers

Compared to YAG, glass has lower thermal conductivity

False Signup and view all the answers

The laser wavelength must not be absorbed well by the workpiece for successful laser welding.

False Signup and view all the answers

The doping ability of glass to high concentration allows for greater energy storage per unit volume

True Signup and view all the answers

Neodymium has been incorporated into alkali-alkaline earth based glasses such as rubidium barium silicate glass

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For solid-state lasers, pumping is accomplished by electrical excitation.

False Signup and view all the answers

Rare earth elements with atomic numbers from 58 to 71 are commonly employed as ions in solid state lasers.

True Signup and view all the answers

High thermal conductivity allows glass systems to extract the largest amount of energy in large laser systems

False Signup and view all the answers

There are three typical regimes of operation mentioned: normal pulse mode, Q-switched operation, and femtosecond pulse operation.

False Signup and view all the answers

Host materials for solid state lasers are typically in the form of a spherical rod.

False Signup and view all the answers

A narrow fluorescent line width is unfavorable for laser operation.

False Signup and view all the answers

Laser Host Materials and Emission Wavelengths Quiz

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Questions and Answers

Er:YAG laser emits light with a wavelength of 2.94 µm

Titanium sapphire laser produces light mainly in the ultraviolet spectrum

Chromium (III) ions are commonly used in lasers that emit light at 2.1 µm wavelengths

Nd:YAG laser emits light in the visible spectrum range

Ytterbium-doped YAG crystals are known to produce light at 1030 nm

Cr4+ ions are commonly used in forsterite lasers emitting light at 1.1–1.37 µm wavelengths

Solid state lasers always use semi-conductors as the active media.

Nd:YAG is the abbreviation for neodymium-doped yttrium aluminum garnet.

Thin-disk lasers based on Yb:YAG can reach efficiencies above 60%.

Glass systems generally outperform crystalline hosts in high energy output applications

Ruby lasers are commonly used in deep penetration welding applications.

Argon ion lasers generally have wall-plug efficiencies around or below 0.1%.

Compared to YAG, glass has lower thermal conductivity

The laser wavelength must not be absorbed well by the workpiece for successful laser welding.

The doping ability of glass to high concentration allows for greater energy storage per unit volume

Neodymium has been incorporated into alkali-alkaline earth based glasses such as rubidium barium silicate glass

For solid-state lasers, pumping is accomplished by electrical excitation.

Rare earth elements with atomic numbers from 58 to 71 are commonly employed as ions in solid state lasers.

High thermal conductivity allows glass systems to extract the largest amount of energy in large laser systems

There are three typical regimes of operation mentioned: normal pulse mode, Q-switched operation, and femtosecond pulse operation.

Host materials for solid state lasers are typically in the form of a spherical rod.

A narrow fluorescent line width is unfavorable for laser operation.

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