- This topic has 11 replies, 6 voices, and was last updated 11 years ago by
Alessandro Festa.
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October 22, 2014 at 10:56 am #14450
arjen888
ParticipantCan anybody help me? How does the bit rate indicate in a optical system performance? I want some details. And why in WDM the bit rate is multiplied??? I would appreciate any reply
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November 3, 2014 at 4:24 am #14780
Alessandro Festa
ParticipantIf you have more wavelengths, the total bandwidth supported by the system is simply the single BitRate multiplied by the number of channels.
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November 3, 2014 at 2:19 pm #14813
Damian Marek
ParticipantBit rate is the speed at which bits are sent. If you have multiple channels all transmitting different bits, but at the same bit rate then the total “effective bit rate” would be the # of channels multiplied by the bit rate.
Having multiple wavelength channels is very similar to having multiple parallel electrical wires in an electrical communication system. So I think Alessandro answered your question best!
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November 3, 2014 at 10:08 am #14785
Ravil
ParticipantIn general, performance of optical system is defined by maximum product of bit rate and transmission length. Bit rate is also defined by type of coding you are using.
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November 3, 2014 at 10:17 am #14787
Heitor GalvaoParticipantWhen you have a doubt you can consult the “help” of optisystem, helps a lot
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November 3, 2014 at 10:17 am #14788
siva rama krishna
ParticipantWDM has multiple wavelengths means multiple channels so WDM capacity is increased.So Bit rate is multiplied by no channels.
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November 3, 2014 at 10:27 am #14790
Ravil
ParticipantI’m not sure what you exactly mean by no channels…
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November 3, 2014 at 10:30 am #14791
Heitor GalvaoParticipantGot weird
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November 3, 2014 at 10:32 am #14792
Ravil
ParticipantOn the other hand your max product of bit rate and trans. length is limited by dispersion and spectral bandwidth of your source
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November 3, 2014 at 12:31 pm #14808
Alessandro Festa
ParticipantI think “no channels” = “number of channels”
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November 5, 2014 at 3:43 am #14912
siva rama krishna
ParticipantAlessandro you are right.
sorry for the inconvience caused by shortcut forms. -
November 5, 2014 at 5:38 am #14918
Alessandro Festa
ParticipantNo problem Siva.
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