The Study of Coupled-Mode Characteristics from Resonant Wavelengths Inside Fiber Grating Structure

Partial wavelength of light traveling through an optical fiber can be filtered out as a resonant wavelength from coupled modes. The simulation by FullWAVE (Synopsys Inc.) shows the electric field distribution throughout the various periodic index difference of fiber core layer. The results show that higher periodic index difference yields the larger electric field distribution affecting lower optical power passing through the optical fiber.