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1. What is the physics behind the light amplification of optical amplifiers? What are the required...

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Physics

1. What is the physics behind the light amplification of opticalamplifiers? What are the required conditions to make theamplification happen?

2. Describe what happens below, at, and above the lasingthreshold of a laser in terms of its output power, populationinversion, and gain coefficient.

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1An optical amplifier is a device that amplifies an optical signal directly without the need to first convert it to an electrical signal An optical amplifier may be thought of as a laser without an optical    See Answer
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