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With the help of device structure explain the working of LED and LASERS with the emphasis on spontaneous and stimulated emission.
written 9.5 years ago by gravatar for teamques10 teamques10 ★ 70k •   modified 5.0 years ago
optical fiber communication
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written 9.5 years ago by gravatar for teamques10 teamques10 ★ 70k

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  • The fundamental theory for design and construction of LED and LASER optical sources is based on electron hole recombination within a semiconductor material.

  • The electron hole recombination results in generation of photons that have frequencies that are determined by the physical parameters of the semiconductor material.

  • The phenomena which results …

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