WAVEGUIDE-TYPE 980/1550 NANOMETER WAVELENGTH FILTER USING SURFACE PLASMON RESONANCE ABSORPTION METHOD, CAPABLE OF ABSORBING ONLY THE WAVELENGTH OF 980 NANOMETER AND TRANSMITTING ONLY THE WAVELENGTH OF 1550 NANOMETER

摘要

Purpose: a kind of surface plasmon resonance absorption method is arranged to only absorb the wavelength of 980nm and by coating the waveguide type 980/1550- nano wave length filter usages that a metallic film only transmits the wavelength of 1550nm in a single flat waveguide. Construction: a kind of surface plasmon resonance absorption method includes a waveguide type 980/1550- nano wave length filter usages of single flat waveguide and a metallic film. Metallic film is added to a crucible zone of single flat waveguide. In the method for manufacture waveguide type 980/1550- nano wave length filters, wavelength shift is by planting the thickness with metallic film. In addition, wavelength shift is by planting the thickness with crucible zone.