Question:
Quantum well lasers were first fabricated using the ............ material systems.
Quantum well lasers were first fabricated using the ............ material systems.
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Quantum well lasers use material systems with different band gaps to create the necessary electronic structure for laser operation.
Updated On: Jan 17, 2026
- InGaAsN/GaAs
- GaAs/AlGaAs
- InGaAsP/InP
- GaAs/InP
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The Correct Option is B
Solution and Explanation
Step 1: Historical background of quantum well lasers.
Quantum well lasers were initially fabricated using GaAs/AlGaAs material systems. This material system was widely used for semiconductor lasers, including those based on quantum well structures.
Final Answer: \[ \boxed{\text{GaAs/AlGaAs}} \]
Quantum well lasers were initially fabricated using GaAs/AlGaAs material systems. This material system was widely used for semiconductor lasers, including those based on quantum well structures.
Final Answer: \[ \boxed{\text{GaAs/AlGaAs}} \]
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