All Questions
Tagged with signal-processing fiber-optics
9
questions
1
vote
1
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88
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Data transmission through optical fiber and copper wire
I read the following in one reference: A copper wire (twisted pair), the link traditionally associated with low bit rate transmission, is still in use in the modern data centers transmitting data at ...
- 111
2
votes
2
answers
128
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How to find peak power at 1550nm using an optical meter?
I have a setup of tunable laser source at 1550nm connected to a spectrometer(Can't publish the name of spectrometer). The spectrometer has a range of 1510-1595 nm. The graph shows wavelength vs ...
3
votes
1
answer
230
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How fast, based on the laws of physics can the Internet be? [closed]
Assuming the actual physics, optics, signal processing and similar, how fast can we increase the 'speed' of the Internet?
I know the limit would be $$v \le c,$$ but are there some other limits:
...
- 4,747
0
votes
2
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276
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Drawing digital signal from analog signal
I was doing a question related to analogue to digital conversion. Here's the question,
Draw the digital signal corresponding to the analogue signal given below. Assume that the system has a bit rate ...
0
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1
answer
20
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What influences the variance of signal transmission speed?
I'm currently thinking about the various sources that influence time when it is synchronized with the NTP protocol. One of them is the physical layer (OSI-model).
When sending a bit over a cable, ...
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1
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1
answer
292
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Why non-linear fiber capacity limit decrease for higher signal-noise ratios?
In fiber optics communication, there is the concept of nonlinear Shannon limit (see e.g. this article), implying that the communication capacity of an optical fiber decreases for high SNR. I don’t ...
- 63
0
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0
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162
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High speed data transfer over a fiber optic cable
Can someone please explain how can we transmit very high speed data (e.g. $10~\rm Gbps$) over fiber optics, knowing the fact that the wave that travels through the fiber is an optical wave (in the ...
- 161
1
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1
answer
1k
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What is the relationship between bitrate and bandwidth for optical channels? [closed]
I would like to know what the relationship between bitrate and the width of spectrum that needs to be assigned to an optical channel is; assuming the channel uses an OOK modulation format such as RZ ...
- 11
0
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1
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68
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In optical Multimode fiber MMF, what is the best pulse shaping filter that can be used to mitigate the ISI?
In telecommunications there are three pulse shaping filters:
Gaussian filter
raised-Cosine
Sinc filter
In fiber optics what is the most suitable pulse shaping filter that can be used to design the ...
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