Determine refractive index of the active ingaas layer

Assignment Help Electrical Engineering
Reference no: EM13278007

Graded-index separate confinement double heterostructure (GRIN-SCH) InGaAs/GaAs lasers with various cavity lengths were tested in the lab. The 100m wide oxide strip lasers consists of two pairs of 10nm In0.2Ga0.8As quantum-well (QW). The barriers of the lasers are 10nm GaAs (undoped). The lasers give a lasing wavelength around 970nm at room temperature. The refractive index of the active InGaAs layer is 3.4.

Reference no: EM13278007

Questions Cloud

Explain neutral acidic or basic : Identify the following salts as neutral acidic or basic: 1. LiNO3 2. SrBr2 3. LiF 4. KCN 5. NH4ClO4 6. NH4Br 7. NH4CN Please include why are they neutral basic or acidic.
Find what is the value of vo across the capacitor : A circuit consists of a voltage source (Vin = 10 V at 75o phase shift, ω = 10 rad/s) in series with a parallel RL combination (R = 10 Ω, L = 0.5 H), which is in series with a capacitor (C=0.05 F). What is the value of Vo(t) across the capacitor
What is the length of the race : A tortoise can run with a speed of 14.0 cm/s, and a hare can run 20 times as fast. In a race, What is the length of the race
What is the direction of the electric field : What is the direction of the electric field at point P and determine the linear charge density. Put your answer in terms of q, L, a, and physical constants.
Determine refractive index of the active ingaas layer : Graded-index separate confinement double heterostructure (GRIN-SCH) InGaAs/GaAs lasers with various cavity lengths were tested in the lab. The 100m wide oxide strip lasers consists of two pairs of 10nm In0.2Ga0.8As quantum-well (QW).
Determine the average speed of the athlete : An athlete completed a marathon in 2 h, 39 min, 41 s. Determine the average speed (in miles per hour) of the athlete.
Determine the average speed for the trip : A person travels by car from one city to another with different constant speeds between pairs of cities. Determine the average speed for the trip
Calculate the rotor power loss and the input current : IN a 2-pole, 208 V (line-to-line, rms), 60-Hz, motor, Rs= 0.5Ω and R'r = 0.45Ω, Xls= 0.6Ω, and X'tr = 0.83Ω. The magnetizing reactance Xm = 28.5Ω. This motor is supplied by its rated voltages. The rated torque is developed at teh slip s = 0.04.
What is the new average pressure : When a box rests on a round sheet of wood on the ground, it exerts an average pressure p on the wood. bwhat is the new average pressure

Reviews

Write a Review

Electrical Engineering Questions & Answers

  What are the advantages and disadvantages of plc simulation

1. What are some of the fundamental differences between ladder logic programs and relay logic diagrams 2. What are the advantages and disadvantages of a PLC simulation software with virtual input

  Convert the weigh to mass slugs using g

There is a damping coefficient of 18 lbs(ft./s). A weight of 96.6 pounds is attached to the spring, moved to 5 ft. above the equilibrium point and released with an initial velocity of 45 ft./s. Do not forget to convert the weigh to mass (slugs) us..

  How fast is the ball moving just as it leaves the tray

A 1.80kg , horizontal, uniform tray is attached to a vertical ideal spring of force constant 195N/m and a 290g metal ball is in the tray. The spring is below the tray, so it can oscillate up-and-down.

  What device width is needed to ensure the minimum resistance

A switch is made with an n-channel MOS device in a technology for which oxide thickness is 20 nm, minimum channel length is 1 um, unCox = 100 uA/V2, and VTH = 0.8 V. The devices operates in deep triode (i.e. small VDS)

  How the half-adder can be constructed just with nand gates

HALF-ADDER: S = XY' + X'Y , C = XY (These are the outputs) 1. From the equation given for half-adder, develop an equation for which the half-adder can be constructed just with NAND gates. Draw the circuit as per the equation obtained.

  What will be the power factor when the inductor voltage

What will be the power factor when the resistor voltage is 9 V at an angle of 30 degrees, and the capacitor voltage is 3 V at an angle of - 60 degrees in a RC series circuit. Also, what will be the power factor when the inductor voltage is 9 V.

  What channel length must the mos cascode amplifier have

In a MOS cascode amplifier, the cascode transistor is required to raise the output resistance by a factor of 40. If the transistor is operated at Vov = 0.2 V, what must its Va be. If the process technology specifies V'a as 5 V/um, what channel len..

  Explain a first-order circuit

A first-order circuit, having a gain of 10 at dc and a gain of 1 at infinite frequency, has its pole at 20 kHz. Find its transfer function.

  To what value should the 2 a source be changed to reduce vx

(a) Using superposition, determine the voltage labeled vx in the circuit represented. (b) To what value should the 2 A source be changed to reduce vx by 10% (c) Verify your answers by performing three dc sweeps in PSpice.

  What are roles of integral term and derivative term

For PID control, what are roles of integral term and derivative term. Given KP=10, KI=3, and KD=4, write down this PID controller function.

  Find the current distribution and the length of the array

Design a continuous antenna array to have the following soace factor : [(sin(2πcosθ))/(2πcosθ)] , at a  wavelength λ=.5 m namely,find : i- the current distribution and the length of the array. ii-the relative side lobe level.

  What are the average and the marginal cost per unit

An assembly line can produce 90 units per hr. The line hrly cost is $4500 on stright line ( the first 8 hrs). Workers are guaranteed a minimum of 6 hrs. There is a 50% premiun for overtime (time and a half), how ever productivity drops by 5%.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd