Function of photodetectors in fibre optic communication, Physics

Assignment Help:

Define the function of photodetectors in fibre optic communication system.

Photo-detectors:

At the receiver end, conversion of optical signal into analog signal is being done with the help of photo detectors for example photodiode. The photo detectors are required to have

a. High quantum efficiency photon to electron (e-) conversion efficiency

b. Sufficient frequency response speed of response

c. Low dark current: low leakage current into a reverse biased diode within the absence of illumination

d. Low signal dependent noise capable to respond for signal quite than noise


Related Discussions:- Function of photodetectors in fibre optic communication

Determine the characteristics of the filter, 1. We want to measure a sinuso...

1. We want to measure a sinusoidal signal (frequency 100 Hz) expected to be of strength 1 mV RMS in the presence of noise of peak amplitude 3 mV.   (a) If our A/D converter has

What is the slit separation, Light with a wavelength of 454.5 nm passes by ...

Light with a wavelength of 454.5 nm passes by two slits that are 95.2 cm from a screen. The distance among the centers of the central band and the first-order band is 15.2 mm.

Determine focal length of this entire system, Two positive lens L 1 and L ...

Two positive lens L 1 and L 2 has the same focal length f>0. The distance between them is f/2. L 1 is placed to the left of L 2 . (a) An object is placed to the left of L1 wi

Conditions needed for production of a sustained interference, Provide the c...

Provide the conditions needed for production of a sustained interference pattern.

Sara, a sinusodal transverse wave is travelling on a string any point on th...

a sinusodal transverse wave is travelling on a string any point on the string

Determine the self inductance of the coil, What do you mean by transformer ...

What do you mean by transformer ratio? A current of 2A is passed through a coil of 1000 turns to produce a flux of 0.5µwb. Determine the self inductance of the coil.

State the law of conservation of electric charges, Q. State the law of cons...

Q. State the law of conservation of electric charges? The entirety charge in an isolated system always remains constant. For instance Uranium ( 92 U 238 ) can decay by emittin

Moment of thin spherical shell about axis, Moment of Thin Spherical Shell A...

Moment of Thin Spherical Shell About Axis This problem can be set up in spherical coordinates so that conversions from Cartesian coordinates are not required. The mass element

Write Your Message!

Captcha
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