Journal of the Optical Society of Korea

Optical Society of Korea (한국광학회)
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Investigation of Resonant Wavelength Separation in Microband-induced Fiber Gratings

  • Sohn Kyung-Rak (Division of Radio and Information Communication Engineering, Korea Maritime University) ;
  • Shim Joon-Hwan (Division of Radio and Information Communication Engineering, Korea Maritime University) ;
  • Kim Kwang-Taek (Department of Optoelectronics Engineering, Homan University)
  • Received : 2006.04.07
  • Published : 2006.06.01
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Abstract

In microband-induced fiber gratings, polarization properties and birefringence are investigated as a function of an applied line force. With the transmission curves associated with the maximum and minimum resonant wavelengths, the polarization-dependent behaviors are analyzed. By increasing the transverse line force, the resonance wavelength for an incident light polarized to the same direction of the force is blue-shifted as much as 0.69 nm/(N/cm) while that for the other polarization is insensitive. Using the resonant wavelength separation corresponding to the force variation, the transverse effective index change or modal birefringence variation is obtained. The ratio of modal birefringence versus applied line force is ${\Delta}B/{\Delta}f_x={\sim}8.38{\times}10^{-7}$.

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References

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