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FBG for Communication and Sensing

Description 

FBG is a type of distributed Bragg reflector constructed in a short segment of optical fiber that reflects particular wavelengths of light and transmits all others. This is achieved by creating a periodic variation in the refractive index of the fiber core, which generates a wavelength-specific dielectric mirror. A fiber Bragg grating can therefore be used as an inline optical filter to block certain wavelengths, or as a wavelength-specific reflector.
Features
  Small size;
●  Good wavelength selectivity;
●  Large bandwidth Range;
  Insensitive to polarization;
  Easy connection with optical fiber system, small additional loss, good coupling.
Applications
  Communications;
  Fiber Bragg grating sensors;
●  Fiber Bragg gratings used in fiber lasers;
  Process of matching active and passive fibers.