Forum Replies Created

    #80873
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    mohammed hosni
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    Hello everyone, I have a question about measuring Q factor.
    Could someone please tell me How can I measure Q factor for PAM-4 or QAM-16 by using the BER analyzer only not using BERT? I have Optisystem 19.
    Thank you very much
    Mohammed Hosni

    #83477
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    mohammed hosni
    Participant

    Hello everyone, I have a question about measuring Q factor.
    Could someone please tell me How can I measure Q factor for PAM-4 or QAM-16 by using the BER analyzer only not using BERT? I have Optisystem 19.
    Thank you very much
    Mohammed Hosni

    #69069
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    mohammed hosni
    Participant

    Thank you Dr Ahmed. I sent you the mail

    #69042
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    mohammed hosni
    Participant

    Thank you dr ahmed but the only problem I need to search for fiber optics so I need to focus on laser communication for high data rate application so i need to select a topic related to the previous field

    #41087
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    mohammed hosni
    Participant

    you can model this type of polymer fiber using optifiber and feed the results into optisystem

    #31019
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    mohammed hosni
    Participant

    how to use the parameter thermal noise is 1e-22 w/hz in sensetivity calculation

    #31018
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    mohammed hosni
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    there is link inside the alistu’s link is unavialable

    #31004
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    mohammed hosni
    Participant

    dr Alistu THE link is unavilable

    #30990
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    mohammed hosni
    Participant

    but mr aabid baba the parameters you have mentioned doesn’t exit in pin photo detector component layout

    #29963
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    mohammed hosni
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    Thank you

    #29399
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    mohammed hosni
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    #29398
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    mohammed hosni
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    ok

    #29367
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    mohammed hosni
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    dr alistu :but i have a paper ,the author has done experiment with laser source with o/p power 6.8 dbm and with linewidth 0.4 nm at wavelength 645 nm using plastic fiber with length 200 m.
    i need your help to know how can i enter the 0.4 nm at the linewidth of the laser source component in optisystem?

    #29364
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    mohammed hosni
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    What do you think about the appropriate value for the linewidth

    #29359
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    mohammed hosni
    Participant

    if i have cw laser source at wavelength 1550 nm with linewidth 0.4 nm ,how can i enter the value of this linewidth in CW laser component??
    the linewidth in optisystem is given in MHZ??
    please help me