how much current is produced by a photodetector whose responsivity is 0.5A/W if the incident optical power level is -43dBm
how much current is produced by a photodetector whose responsivity is 0.5A/W if the incident optical...
Problem 3 (25 points) A silicon photodetector has an internal photo responsivity of 0.5 A/Wt wavelength of 850 nm. When photons of wavelength 850 nm are incident normally on this photodetector, some photons are reflected back and some photons penetrate to the detection region and are absorbed by the photodetector. (a) The index of refraction of silicon is 3.45. If the electric current measured by this photodetector is 20 mA, what is the incident optical power? (b) Silicon has a...
There are 10^10 photons per second incident on a photodetector at wavelength 0.8 p,m. Compute the power incident on the detector. If this detector converts light to current at a rate of 0 mA/mW, what current is produced?
Question 3: (8 points) (a) A photodetector has an effective area of 6x102 cm. It is illuminated with 700nm laser light that has an intensity of 2.5mW/cm². Assuming each three photons generate one electron-hole pair on average, calculate the generated photocurrent. (b) A 40 nW optical power at 1555 nm is incident on APD. The APD has refractive index of 3.5, and its multiplication factor is 12. It is efficiency without avalanche breakdown is 80%. Find: a) The responsivity of...
A PlayStation draws a current of 140 mA at 120 V. How much power (in W) does the device require? w
12. Consider a current of 3 mA flowing through an LED whose band gap is about 2 eV. (A) How many photons are produced per second? (B) What is the power of the light produced? Notice that this small current produces a light that is easily visible. (For comparison, a typical flashlight bulb, which is very easily visible, consumes about a watt of power, of which about 50 mW is visible light.) 12. Consider a current of 3 mA flowing...
how much heat is produced by stationary incandescent 100.W electric light bulb that has a constant internal energy after it has been eliminated for 1.00 h?
How much current is passing through the third resistor? How much current is passing through the third resistor? How much power is being dissipated by the third resistor? Consider the circuit below where:ΔΙία,-40V, Ri = 2100. R2-3800. R3-520Ω, R4-720Ω, and R5= 880Ω R1 AVbat R4 R3 Rs
100 kw are produced at 35% efficiency. How much power must be put in for this to be true?
How much does it cost to operate a 80-W lamp continuously for a week if the power utility rate is 25 cents/kWh.
The power needed to accelerate a projectile from rest to its launch speed v in a time t is 43.0 W. How much power is needed to accelerate the same projectile from rest to a launch speed of 2v in a time of vat? 43 W 86 W 172 W 344 W 0 75 W The power needed to accelerate a projectile from rest to its launch speed v in a time t is 43.0 W. How much power is...