The semiconductor lasers employing the distributed feedback mechanism are classified in _________________ categories
A)one
B)two
C)three
D)four

Name: The semiconductor lasers employing the distributed feedback mechanism are classified in _________________ categories A)one B)two C)three D)four
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Question

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Semiconductor lasers with distributed feedback are classified into two categories: those with a periodic structure that provides feedback and those with a distributed Bragg reflector.

The Semiconductor Lasers Employing the Distributed Feedback Mechanism Are Classified