Optical modulator, 40G clock and ground loops

Discussion in 'Wireless & RF Design' started by richiechen, Oct 24, 2012.

  1. richiechen

    Thread Starter Member

    Jan 1, 2012
    Hi every one

    I am using 40G clock. My friend told me that the clock is connected with ground, which is a one end grounded signal.

    I dont understand why is this?

    Since the modulator is also connected with ground at one end.

    A ground loop will be formed to absorb noises, is that correct?

    Why does this happen?

    Thank you very much.