The adjustable optical attenuator of WDL is compensated by adjustment optical waveguide position

The adjustable optical attenuator of WDL is compensated by adjustment optical waveguide position

  • CN 101,963,685 B
  • Filed: 07/22/2009
  • Issued: 08/12/2015
  • Est. Priority Date: 07/22/2009
  • Status: Active Grant
First Claim
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1. compensated an adjustable optical attenuator for Wavelength Dependent Loss by adjustment optical waveguide position, comprising:

  • Input waveguide, launch the light beam comprising Different lightwave long component, have axis 1, along axis 1, any vertical direction moves;

    Output optical waveguide, comprises the light beam of Different lightwave long component described in reception, have axis 2, and along axis 2, any vertical direction moves;

    Lens, there is optical axis 3, for collimating the light beam launched from described input waveguide, and the light beam after catoptron reflection is focused on described output optical waveguide, and according to the position of described input waveguide and the position of output optical waveguide, dispersion is in various degree produced to described light beam;

    AndThe catoptron of inclination angle-adjustable, for receiving the light beam from described lens, and described light beam is passed described lens to described output optical waveguide, the different inclination angle of described catoptron makes attenuator produce the pad value of different size, and produces certain Wavelength Dependent Loss (WDL) when making certain pad valueWherein, described axis 1 and axis 2 are distributed in the side of optical axis.

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