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    DATA TRANSMISSION METHOD AND TRANSCEIVER FACILITATING THE SWITCHING OF FREQUENCY BANDS FOR OPTICAL CHANNELS
    194.
    发明公开
    DATA TRANSMISSION METHOD AND TRANSCEIVER FACILITATING THE SWITCHING OF FREQUENCY BANDS FOR OPTICAL CHANNELS 审中-公开

    公开(公告)号：EP3422602A1

    公开(公告)日：2019-01-02

    申请号：EP17178156.0

    申请日：2017-06-27

    申请人： Xieon Networks S.à r.l.

    发明人： Schimpe, Robert

    IPC分类号： H04B10/032 ,  H04J14/02 ,  H04B10/61

    摘要： Disclosed herein is a method of transmitting data in an optical network (10, 100) from a first location to a second location, as well as a corresponding receiver unit and transceiver. The method comprises the following steps:
    modulating a same data signal on first and second carriers having first and second wavelengths, respectively, to generate first and second optical signals carrying the same information,
    transmitting said first and second optical signals from said first location to said second location through said optical network,
    coherent receiving of a selected one of said first and second optical signals by means of a coherent receiver (29) located at said second location, wherein said coherent receiving comprises the following steps:
    receiving a selected one or both of said first and second optical signals on a photodetector (30a, 30b),
    providing, by means of a local oscillator arrangement (34, 38) optically connected with said photodetector (30a, 30b),
    a selected one of a first local oscillator signal having a wavelength corresponding to said first wavelength and a second local oscillator signal having a wavelength corresponding to said second wavelength, in case both of said first and second optical signals are received on said photodetector, or
    both of said first and second local oscillator signals in case a selected one of said first and second optical signals is received on said photodetector; and
    processing the output signal of said photodetector by means of an electronic receiver circuit (32) connected to said photodetector (30a, 30b).

    Apparatus, Method and Computer Program for a Receiver of an Optical Signal
    197.
    发明授权
    Apparatus, Method and Computer Program for a Receiver of an Optical Signal 有权

    公开(公告)号：EP2894799B1

    公开(公告)日：2018-09-26

    申请号：EP14305528.3

    申请日：2014-04-10

    申请人： Alcatel Lucent

    发明人： Salsi, Massimiliano ,  Charlet, Gabriel

    IPC分类号： H04B10/61

    CPC分类号： H04B10/616 ,  H04B10/61

    摘要： Embodiments relate to an apparatus, a method and a computer program for receiver of an optical signal. The apparatus (10) is operable to input digitized samples of the optical signal at a first sampling rate. The apparatus (10) is further operable to filter the digitized samples based on a plurality of filter coefficients to obtain filtered samples of the optical signal at a second sampling rate. The second sampling rate is different from the first sampling rate. The apparatus (10) is further operable to output the filtered samples of the optical signal at the second sampling rate.