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Physics, 17.07.2019 21:10 ndkjfgj4368

Agaalas laser diode has a 500 um cavity length which has an effective absorption coefficient of 10 cm1. for uncoated facets the reflectivity are 0.32 at each end. what is the optical gain at the lasing threshold? (the optical field confinement factor г is equal to 1) if the internal quantum efficiency is 0.65, what is the external quantum efficiency?

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