- This topic has 5 replies, 2 voices, and was last updated 8 years, 7 months ago by
alistu.
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October 31, 2015 at 2:19 pm #27309
Dr. Dhiman Kakati
ParticipantHi All,
I want to produce a 60 GHz radio signal in electrical domain which can be further used to modulate optical carrier i.e. light using QPSK modulation scheme and the then transmit it to receiver end over fiber in short basically Radio over Fiber (RoF). So how to generate the signal i.e. 60 GHz radio signal.Regards
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December 9, 2015 at 12:17 am #28561
alistu
ParticipantHi Dhiman,
The Bandwidth of the generated signal very much depends on the bit rate of the pseudo random bit sequence generator (or any other components used for this purpose), as well as the modulation scheme (which you have already chosen). Now that you have chosen the scheme, you can do as I said if bandwidth is the main focus, and not the bit rate.
Regards
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December 9, 2015 at 5:33 am #28576
Dr. Dhiman Kakati
ParticipantHi Alistu, Do i need to set in both i.e. pseudo random bit sequence generator and in Modulation scheme so how to set in the case of modulation scheme which i am not getting. Suppose I am doing the modulation in optical domain, then how to do this in optical domain, will it be same as that of CW laser source that I am using for the design at the transmitter side. Thanks for the reply.
Regards,
Dhiman-
December 9, 2015 at 6:16 am #28578
alistu
ParticipantYou have clearly stated in your post question that you’d like to have a signal with 60 GHz bandwidth, so I gave the above suggestion. If you wish to do the signal modulation in optical domain, you may use the OSA to observe the spectrum and decide on the bit rate of the signal based on the bandwidth.
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December 9, 2015 at 7:32 am #28580
Dr. Dhiman Kakati
ParticipantHi Alistu, I agree to you that I had asked the question ” want to produce a 60 GHz radio signal in electrical domain” and you stated accordingly, Highly appreciate that. and I will see in case of optical domain as you have suggested. Thanks for the reply.
Regards,
Dhiman -
December 9, 2015 at 8:07 am #28585
alistu
ParticipantYou’re welcome. I hope I have also addressed the first part of your question in reply #28576.
Regards
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