I like your lectures so much...easy to understand: how do getaway with this one : he numerical input/output mean optical power ratio in a 1 km, length of optical fiber is found to be 2.5. Calculate the received mean optical power when a mean optical power of 1 mW is launched into a 5 km length of the fiber (assuming no joints or connectors).
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A step index multimode optical fiber has a core of refractive index 1.45, a cladding of refractive index 1.43 and a loss of 4 dB/km. For a total length of 3 km: determine the overall cable attenuation, estimate the amount of pulse spreading due to modal dispersion, determine the maximum data rate for this cable using binary pulses
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Sir, in question no 4..input power is 703.26 microwatt
please give me no.4 math solution
milli bro
I like your lectures so much...easy to understand: how do getaway with this one : he numerical input/output mean optical power ratio in a 1 km, length of optical
fiber is found to be 2.5. Calculate the received mean optical power when a mean
optical power of 1 mW is launched into a 5 km length of the fiber (assuming no
joints or connectors).
Thank you so much Sir, this channel is helping me a lot.
Very helful lecture. Thanks sir
I guess I am kinda randomly asking but does anyone know a good website to watch newly released tv shows online ?
@Zayn Niko Flixportal =)
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Thank u
All the subjects playlist of Engineering Funda is available in comment section. Share it with your friends to support us.
Your positive comments motivates me and person like me get boosted by my students feedback. Thanks and welcome 🙏
Thanks
Your positive comments motivates me.
Teachers like me just wants positive comment from student.
Love from you guys means a lot to me.
My goal is to create largest community of engineers in entire globe. Please help me by sharing this playlist with your friends.
Sir, in ques 3 why 45% of i/p????? In ques it was 55% of loss????
Let assume Pin= 100 then, 100-55= 45, so Pout= 45
Please make a video on television chapter in avs subject
4 no. Math ans wrong.. And connector will be 15
2:47 how did u calculated the db?
What us the maximum acceptable attenuation?
It is based on .... till you receive signal.
Sir,
Which book are you following? Please writter name
Keisar and many handbooks of optical fiber communications
@@EngineeringFunda book's name?
sir in question no 3 i think the loss will be 55% means 0.55(Pin) instead of 0.45
Let assume Pin= 100 then, 100-55= 45, so Pout= 45
55% loss means the output power will be 45% of input power
11*.5=5.5
Vision very poor, other wise thanks
I think Alpha =AlphaZ*Z
Its perfectly correct here
@@EngineeringFunda but you did it wrong in question2. Please verify if it is wrong or not.
I think the calculation of Q.2 is wrong. Alpha=Attenuation/Distance not Alpha=Attenuation x Distance. Your teaching is best but calculation is not.
No, he is right
As alpha is the total attenuation there which is = attenuation constant*length
@@pheonix1621 Donno' bro. It was way back, when I studied it. Now it all gone.😂✌
A step index multimode optical fiber has a core of refractive index 1.45, a cladding of refractive index 1.43 and a loss of 4 dB/km. For a total length of 3 km: determine the overall cable attenuation, estimate the amount of pulse spreading due to modal dispersion, determine the maximum data rate for this cable using binary pulses