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Semiconductors lasers do not need mirrors to form optical cavity.

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Semiconductors lasers do not need mirrors to form optical cavity.

(a) True

(b) False

This question was addressed to me by my school teacher while I was bunking the class.

This interesting question is from Carbon Dioxide Laser and Semiconductor Laser in section Laser of Engineering Physics II

1 Answer

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The correct choice is (a) True

The explanation is: Semiconductor lasers do not require two external mirrors to form an optical cavity. Reflection from the cleaved ends of the semiconductor is enough to produce lasing.

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