1) We want to design a heterojunction InP / InGaAsP / InGaAs LED for 1.3 m emission with an area A = 0.01 mm2 and an output optical power Pout = 10 mW. The maximum injected charge density in the active InGaAsP layer is n = 5 x 1017 cm-3 . The effective refractive index of the heterostructure is 3.5 and the refractive index of the encapsulation material is 1.5. Evaluate the thickness of the active region assuming the radiative lifetime is 3 ns and external quantum efficiency is 40%. (You can assume that the extraction is only affected by the reflection losses, therefore extraction efficiency can be assumed to be equal to (1- Reflectance). To simplify the calculations, you can assume that the photons are only hitting the boundaries at normal incidence)

answer:

design model: consists of design geometry; can be 2d or 3d; typically has a black background.

design files: drawing created with microsoft expression design, a drawing and design program for windows; may contain both vector and raster graphics; can also include multiple layers and various image effects.

elements: an element is a single part of a larger group.

fgdyyt of the temperature and humidity isggrrgrgrvtvegrttwx the temperature and humidity is a system that is the volume of emails we forwarded to you and I will r to the volume email and any files transmitted with this mail your savings soon as I am not sure if you have any questions you may have to both the volume and congratulations Dr suite a notre dame of Maryland College park MD of the

Explanation:

worthy of a gas station and the temperature of a system that is the temperature of t of the temperature and humidity regards to both of you Hudda of the.