Consider a double heterostructure laser operating at an wavelength = 1130 nm. The active region is...
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Consider a double heterostructure laser operating at an wavelength = 1130 nm. The active region is a III-V ternary semiconductor alloy: Ino.2 Gao.8As. The active layer (cavity) length L = (220 + XY)μm. Cross sectional area (dx w) of the cavity is (3+0.0Y) μm² where the thickness must be within the range 0.15μm < d < 0.25μm ,as = 20 cm-¹, threshold carrier concentraion, nth = 1.75 x 1. the radiative lifetime in the active region is T, = 2.5ns. Refractive index of the active region is expressed as n = 3.52xy +3.39(1-y) + 3.6y(1-x)+3.56(1-x)(1-y) for InxGa₁-xAsyP₁-y. Determine the following: 10¹8 cm3, [30 Marks] a. Refractive indices of the materials. b. Reflectivity, R. c. Loss of radiation due to the reflections in cavity mirrors, am d. Threshold gain, 9th. e. Threshold current density, Ith- f. Threshold current, Ith- g. Photon life time, Tph- h. Output optical power at a current at I = 21th." Consider a double heterostructure laser operating at an wavelength = 1130 nm. The active region is a III-V ternary semiconductor alloy: Ino.2 Gao.8As. The active layer (cavity) length L = (220 + XY)μm. Cross sectional area (dx w) of the cavity is (3+0.0Y) μm² where the thickness must be within the range 0.15μm < d < 0.25μm ,as = 20 cm-¹, threshold carrier concentraion, nth = 1.75 x 1. the radiative lifetime in the active region is T, = 2.5ns. Refractive index of the active region is expressed as n = 3.52xy +3.39(1-y) + 3.6y(1-x)+3.56(1-x)(1-y) for InxGa₁-xAsyP₁-y. Determine the following: 10¹8 cm3, [30 Marks] a. Refractive indices of the materials. b. Reflectivity, R. c. Loss of radiation due to the reflections in cavity mirrors, am d. Threshold gain, 9th. e. Threshold current density, Ith- f. Threshold current, Ith- g. Photon life time, Tph- h. Output optical power at a current at I = 21th."
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ANSWER a Refractive indices of the materials InGaAs n 352xy 3391 y 36y1x 3561x1y ... View the full answer
Related Book For
Analysis and Design of Analog Integrated Circuits
ISBN: 978-0470245996
5th edition
Authors: Paul R. Gray, ? Paul J. Hurst Stephen H. Lewis, ? Robert G. Meyer
Posted Date:
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