DroidForums.net is the original Verizon Android Forum! Registered Users do not see these ads. Please Register - It's Free!
Results 1 to 1 of 1

Thread: OTDR Manufacturing Principles

  1. Droid Newbie
    kstcable's Avatar
    Member #
    300321
    Join Date
    Oct 2012
    Posts
    2
    Phone
    Enter Current Phone Model Here
    #1

    OTDR Manufacturing Principles

    OTDR manufacturing principles:

    It is made based the light backscattering and Fresnel reflection principle

    Backscatter method (1): the starting end in the optical fiber cable within the numerical aperture of the measurement of the Rayleigh scattering of light reflected back a non-destructive measurement method of the fiber loss;

    Backscatter method (2): The high-power narrow pulse light injected into the fiber under test, and then detecting the scattered light power is returned back along the fiber at the same end;

    Rayleigh scattering: it is the material molecular scattering of light waves produce a physical phenomenon;

    Rayleigh scattering light: it can only be within the numerical aperture along the optical fiber transmission, and because the fiber exists loss, so the scattered light is gradually reduced along the propagation direction, and the degree of reduction depends on the attenuation coefficient and length of the fiber.

    Based on the above reasons, the starting end in the optical fiber to accept the return of scattered light within the numerical aperture, the same having a fiber loss of the information. Which is facing away from the principles of the measured fiber loss of the scattering method. Works made ​​using this instrument, called optical time domain reflectometer, also known as the OTDR.
  2.  
     
     
     

Links

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Similar Threads

  1. Seidio Car Dock possible manufacturing/design defect
    By Wongway in forum Android Accessories
    Replies: 4
    Last Post: 08-28-2010, 07:11 AM
  2. Total Manufacturing Cost of IPAD
    By jkwakopo in forum Off Topic Forum
    Replies: 14
    Last Post: 02-12-2010, 08:49 AM
  3. Notification LED manufacturing glitch?
    By NaterGator in forum Android Tech Support
    Replies: 5
    Last Post: 01-06-2010, 12:08 PM

Search tags for this page

discussion of otdr

,

the discussion of otdr

Click on a term to search our site for related topics.
Find us on Google+