Optical Fiber Communication-1final

download Optical Fiber Communication-1final

of 39

  • date post

    06-Apr-2018
  • Category

    Documents

  • view

    220
  • download

    2

Embed Size (px)

Transcript of Optical Fiber Communication-1final

  • 8/2/2019 Optical Fiber Communication-1final

    1/39

    By

    TANIMA CHAKRABORTY(Roll-21)SREEYA CHAKRABARTY(Roll-24)MEGHALI DEY (Roll-37)

  • 8/2/2019 Optical Fiber Communication-1final

    2/39

    Welcome to the WORLD of

    OPTICAL FIBREWhat is optical fiber

    communication? The process of

    communication usingOptical Fibers

    http://en.wikipedia.org/wiki/File:Laser_in_fibre.jpg
  • 8/2/2019 Optical Fiber Communication-1final

    3/39

    A WALK THROUGHTIME

    The Founders and Developers

  • 8/2/2019 Optical Fiber Communication-1final

    4/39

  • 8/2/2019 Optical Fiber Communication-1final

    5/39

    1ST

    -GENERATION

    rate of 45 Mbps

    repeater spacin

    of

    up to 10 km.

  • 8/2/2019 Optical Fiber Communication-1final

    6/39

    single-mode fiber

    rates of 1.7 Gb/s repeater spacing up to 50 k

    2nd -GENERATION -

  • 8/2/2019 Optical Fiber Communication-1final

    7/39

    Rate of 2.5

    Gb/s,

    repeater

    spacing in

    excess of

    100 km

    3RD -GENERATION

  • 8/2/2019 Optical Fiber Communication-1final

    8/39

    repeaters and wavelength-

    division multiplexing

    14 Tb/s, repeater

    Spacing of 160 km.

    4th -GENERATION

  • 8/2/2019 Optical Fiber Communication-1final

    9/39

    newdry fiber,low-loss

    window

    range of 1.30-1.65 m.

    5thGENERATION

  • 8/2/2019 Optical Fiber Communication-1final

    10/39

  • 8/2/2019 Optical Fiber Communication-1final

    11/39

  • 8/2/2019 Optical Fiber Communication-1final

    12/39

    TECHNOLOGY

    Optical transmitter

    converts an electrical

    signal into an optical signal . The

    information transmitted is typically digital

    information.

    Optical receiver

    recovers the signal as an

    electrical signal.

  • 8/2/2019 Optical Fiber Communication-1final

    13/39

    Transmitters:

    Commonly-used - semiconductordevices -LEDs ,Laser diodes.

    LEDs are very useful for low-costapplications.

    Laser allows high coupling

    efficiency.

    http://en.wikipedia.org/wiki/File:Finisar_GBIC_SX_2.jpg
  • 8/2/2019 Optical Fiber Communication-1final

    14/39

    Receivers:

    The photoelectric effect

    MSM-suitable for circuitintegrationin regenerators and

    wavelength-divisionmultiplexers.

  • 8/2/2019 Optical Fiber Communication-1final

    15/39

  • 8/2/2019 Optical Fiber Communication-1final

    16/39

  • 8/2/2019 Optical Fiber Communication-1final

    17/39

    http://en.wikipedia.org/wiki/File:Optical-fibre.svg
  • 8/2/2019 Optical Fiber Communication-1final

    18/39

  • 8/2/2019 Optical Fiber Communication-1final

    19/39

  • 8/2/2019 Optical Fiber Communication-1final

    20/39

  • 8/2/2019 Optical Fiber Communication-1final

    21/39

  • 8/2/2019 Optical Fiber Communication-1final

    22/39

  • 8/2/2019 Optical Fiber Communication-1final

    23/39

  • 8/2/2019 Optical Fiber Communication-1final

    24/39

  • 8/2/2019 Optical Fiber Communication-1final

    25/39

    3. LIGHT SCATTERING

    Diffuse reflection or scattering, characterized by widevariety of reflection angles.

    depends on the wavelength of the light being

    scattered

  • 8/2/2019 Optical Fiber Communication-1final

    26/39

    http://en.wikipedia.org/wiki/File:Diffuse_reflection.PNG
  • 8/2/2019 Optical Fiber Communication-1final

    27/39

  • 8/2/2019 Optical Fiber Communication-1final

    28/39

    Now regeneration of the optical

    signal is only needed over

    distances of hundreds of

    kilometers-

    Reduction in the cost of optical

    networking.

    Dispersion management.

  • 8/2/2019 Optical Fiber Communication-1final

    29/39

    features about

    opt ical f ibers ! ! !Interes t ing

  • 8/2/2019 Optical Fiber Communication-1final

    30/39

    Fiber can be installed in areas with

    high electromagnetic interference.

    Has inherently high data-carryingcapacity

    Even when run alongside each otherfor long distances, fiber cablesexperience effectively no crosstalk

    Fiber has exceptionally low loss.

  • 8/2/2019 Optical Fiber Communication-1final

    31/39

    Optical systems cango over 100kilometers ,with noactive or passiveprocessing.

  • 8/2/2019 Optical Fiber Communication-1final

    32/39

    Comparison of optical fibercommunication

    with electric transmission

  • 8/2/2019 Optical Fiber Communication-1final

    33/39

    In short distance and relatively low bandwidthapplications, electrical transmission is oftenpreferred because of its :Lower material cost, where large quantities are not

    required

    Lower cost of transmitters and receivers

  • 8/2/2019 Optical Fiber Communication-1final

    34/39

  • 8/2/2019 Optical Fiber Communication-1final

    35/39

    SO WHY USEOPTICAL FIBER ???

  • 8/2/2019 Optical Fiber Communication-1final

    36/39

    In certain situations fiber may be usedeven for short distance or low bandwidth

    applications, due to other importantfeatures:

    Immunity to electromagnetic interference, including

    nuclear electromagnetic pulses .

    High electrical resistance.

    Lighter weightimportant, for example, in aircraft.

  • 8/2/2019 Optical Fiber Communication-1final

    37/39

  • 8/2/2019 Optical Fiber Communication-1final

    38/39

  • 8/2/2019 Optical Fiber Communication-1final

    39/39