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Q2. Assuming a 500-μm-long Fabry-Perot LD consisting of an active layer of InGaAsP (n = 3.6, λ = 1.55 µm). Both mirror f
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Q2. Assuming a 500-μm-long Fabry-Perot LD consisting of an active layer of InGaAsP (n = 3.6, λ = 1.55 µm). Both mirror f
Q2. Assuming a 500-μm-long Fabry-Perot LD consisting of an active layer of InGaAsP (n = 3.6, λ = 1.55 µm). Both mirror facets are cleaved without mirror coatings (i.e. Fresnel reflection only). The internal loss α; and internal quantum efficiency nį are 13 cm-¹, and 80 %, respectively. Fabry-Perot LD A. Find the modal gain [cogact. B. Find the external differential quantum efficiency na. C. Find the slope efficiency S. (Note: estimate for the emission from one facet) Active layer (InGaAsP)