Forum Replies Created

    August 24, 2022 at 8:42 am #80873
    Profile Photo
    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

    August 24, 2022 at 8:42 am #83477
    Profile Photo
    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

    March 13, 2021 at 12:04 am #69069
    Profile Photo
    mohammed hosni
    Participant

    Thank you Dr Ahmed. I sent you the mail

    March 9, 2021 at 8:59 am #69042
    Profile Photo
    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

    August 4, 2016 at 9:14 pm #41087
    Profile Photo
    mohammed hosni
    Participant

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

    March 2, 2016 at 2:32 pm #31019
    Profile Photo
    mohammed hosni
    Participant

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

    March 2, 2016 at 2:12 pm #31018
    Profile Photo
    mohammed hosni
    Participant

    there is link inside the alistu’s link is unavialable

    March 2, 2016 at 1:25 pm #31004
    Profile Photo
    mohammed hosni
    Participant

    dr Alistu THE link is unavilable

    March 2, 2016 at 12:58 pm #30990
    Profile Photo
    mohammed hosni
    Participant

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

    February 20, 2016 at 12:28 pm #29963
    Profile Photo
    mohammed hosni
    Participant

    Thank you

    February 2, 2016 at 11:44 am #29399
    Profile Photo
    mohammed hosni
    Participant

    this is the link of paper
    http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=962269&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D962269

    February 2, 2016 at 11:38 am #29398
    Profile Photo
    mohammed hosni
    Participant

    ok

    January 30, 2016 at 11:14 pm #29367
    Profile Photo
    mohammed hosni
    Participant

    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?

    January 30, 2016 at 2:27 am #29364
    Profile Photo
    mohammed hosni
    Participant

    What do you think about the appropriate value for the linewidth

    January 29, 2016 at 12:56 pm #29359
    Profile Photo
    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