Question

What is quantum well laser? Explain its operation. How is it applicable in vertical cavitysurface emitting laser?

Answer 1

Answer:

A quantum well laser is a laser diode in which the active region of the device is so narrow that quantum confinement occurs. The wavelength of the light emitted by a quantum well laser is determined by the thickness of the active region rather than just the bandgap of the material from which it is constructed.

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