Ask Question, Ask an Expert


Ask Electrical & Electronics Expert

problem 1) What are the needs of optical receiver? Describe each block of receiver design.

b) Find the expression for 3dB modulation bandwidth of LED and describe the significance of radiative recombination life time.

problem 2)a) A pin photodiode on average generate one electron hole pair per three incident photons at the wavelength of 0.8μm. Supposing all the electrons are collected, find out

i) Quantum efficiency of the device

ii) Its maximum possible band gap energy

iii) The mean output photocurrent when received optical power is 10–7W.

b) Commonly available single mode fiber have beat length in range 10cm < Lp < 2m. What rate of refractive index does this corresponds to for λ=1300nm?

problem 3)a) Sketch the schematic diagram of high radiance surface emitting LED and describe its working in detail.

b) What are the basic attenuation mechanisms in the optical fiber communication? Describe in brief on what factors this mechanism depends?

problem 4)a) What are the advantages and disadvantages of LED and describe the key process involved in the LASER operation.

Electrical & Electronics, Engineering

  • Category:- Electrical & Electronics
  • Reference No.:- M99578

Have any Question? 

Related Questions in Electrical & Electronics

How old are our drivers table below gives the age

How old are our drivers? Table below gives the age distribution of licensed drivers in the United States. a Describe this age distribution in terms of median, mean, and standard deviation. b Does the empirical rule work ...

A determine the transfer function corresponding to the bode

(a) Determine the transfer function corresponding to the Bode plot of the magnitude shown in given figure. (b) What is the actual gain at (i) ω = 50 rad/s, (ii) ω = 150 rad/s, and (iii) ω = 100 krad/s.

The per-phase impedance of a 600-v three-phase y-connected

The per-phase impedance of a 600-V, three-phase, Y-connected synchronous motor is 5 + j50 Ω. The motor takes 24 kW at a leading power factor of 0.707. Determine the induced voltage and the power angle of the motor.

Perform the following unsigned binary additions in each

Perform the following unsigned binary additions. In each case, can the result be represented in the same number of bits as the operands, or is an extra bit required? a) 01011001 + 01011110 b) 11110001 + 01110100 c) 10000 ...

The op-amp in given figure has an open-loop differential

The op-amp in given Figure has an open-loop differential input resistance R i , an open-loop current gain Ai, and a zero output resistance. Break the feedback loop at an appropriate point, and derive the expression for t ...

Develop a verilog model of a pipelined circuit that

Develop a Verilog model of a pipelined circuit that computes the maximum of corresponding values in three streams of input values, a, b and c. The pipeline should have two stages: the first stage determines the larger of ...

For an amplifier operating with 1-4 v saturation limits at

For an amplifier operating with 1-4 V saturation limits at a closed-loop gain of -100 VN, what input offset voltage is required to assure less than 1% reduction in output swing capability due to offset?

For the series r-l-c circuit of given figurea plot

For the series R-L-C circuit of given figure: a. Plot Z T  and θ T  versus frequency for a frequency range of zero to 20 kHz in increments of 1 kHz. b. Plot V C  (magnitude only) versus frequency for the same frequency r ...

Consider the input stage and bias circuit of the 741 op-amp

Consider the input stage and bias circuit of the 741 op-amp shown in Figure 13.5. Design a complementary circuit such that the input transistors are pnp devices, and the bias currents are IREF = 0.4 mA and IC10 = 24μA wh ...

Equivalency of node voltage and mesh current

Equivalency of Node Voltage and Mesh Current Methods Introduction: During this experiment, you will verify that the two generalized techniques covered in class for solving linear circuits are equivalent. The Node Voltage ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

A cola-dispensing machine is set to dispense 9 ounces of

A cola-dispensing machine is set to dispense 9 ounces of cola per cup, with a standard deviation of 1.0 ounce. The manuf

What is marketingbullwhat is marketing think back to your

What is Marketing? • "What is marketing"? Think back to your impressions before you started this class versus how you

Question -your client david smith runs a small it

QUESTION - Your client, David Smith runs a small IT consulting business specialising in computer software and techno

Inspection of a random sample of 22 aircraft showed that 15

Inspection of a random sample of 22 aircraft showed that 15 needed repairs to fix a wiring problem that might compromise

Effective hrmquestionhow can an effective hrm system help

Effective HRM Question How can an effective HRM system help facilitate the achievement of an organization's strate