Laser categories: Which set correctly lists three broad types of lasers by gain medium? Identify a representative coverage of common laser classes. Choose the correct set.

Q: Laser categories: Which set correctly lists three broad types of lasers by gain medium? Identify a representative coverage of common laser classes. Choose the correct set.

Concept Lasers are commonly grouped by their gain medium: gas (e.g., He–Ne, CO₂), solid-state (e.g., ruby, Nd:YAG), and semiconductor diode lasers. Final Answer Gas lasers, solid-state lasers, and semiconductor (diode) lasers

Difficulty: Easy

Gas lasers, solid-state lasers, and semiconductor (diode) lasers
Analog lasers, digital lasers, and hybrid lasers
Thermal lasers, chemical lasers, and ionic lasers
UV lasers, IR lasers, and visible lasers

Correct Answer: Gas lasers, solid-state lasers, and semiconductor (diode) lasers

Explanation:

Concept
Lasers are commonly grouped by their gain medium: gas (e.g., He–Ne, CO₂), solid-state (e.g., ruby, Nd:YAG), and semiconductor diode lasers.

Final Answer
Gas lasers, solid-state lasers, and semiconductor (diode) lasers

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