TUNABLE PHOTONIC MICROWAVE BANDPASS FILTER BASED ON MICROMIRROR ARRAYS

摘要

A variable super high frequency filter using an optical micromirror array is provided to change variable and resonance frequencies of a frequency response shape by using an optical filter based on the optical micromirror array. A variable super high frequency filter using an optical micromirror array(20) includes an ASE(Amplified Spontaneous Emission) light source(10), an electric light modulator(30), a dispersion optical fiber(40), and an electric light converter(50). The ASE light source(10) has a wavelength of a broadband. The micromirror array(20) generates a multi-wavelength channel by receiving the ASE light source(10). The electric light modulator(30) loads a super high frequency signal into the multi-wavelength channel outputted from the micromirror array(20). The dispersion optical fiber(40) transmits the multi-wavelength channel having the super high frequency signal outputted from the electric light modulator(30) with various time base delays according to a wavelength. The electric light converter(50) puts the multi-wavelength channel having the various time base delays transmitted through the dispersion optical fiber(40) together to convert the multi-wavelength channel into an electric signal.