Optical communication systems : Gowar, John, 1945- : Free Download, Borrow, and Streaming : Internet Archive. Optical communication systems : Gowar, John, 1945

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In-depth semiconductor theory for LEDs and LASERs, focusing on injection luminescence and laser action.

$$P(z) = P_0 \cdot e^-\alpha z$$

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Despite the rapid evolution of 5th-generation photonic systems, Gowar’s text is preferred for its semi-classical approach to radiation propagation and its rigorous semiconductor theory. It provides the "mathematical scaffolding" necessary for understanding how light behaves in III-V semiconductor materials, which are still the backbone of today's optoelectronic components.