| 摘要 |
PURPOSE: A wavelength division multiplexing device with a high wavelength isolation by using a reflective material is provided to save the raw material by simplifying the structure with using only a capillary, a lens, a filter and a reflective material. CONSTITUTION: A wavelength division multiplexing device with a high wavelength isolation by using a reflective material includes a multifiber capillary(120), a lens(130), a filter(140) and a reflective material(150). The multifiber capillary(120) is provided with a plurality of fine pores to fix the optical fiber. The lens(130) concentrates the light inputted from the optical fiber. The filter(140) transmits a specific wavelength among the signal passing through the lens(130), and it reflects the other wavelength to the other optical fiber. And, the reflective material(150) increases the wavelength isolation by reflecting the signal passing through the filter(140) and again passing thorough the filter(140).
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