Reconfigurable sampling of the electric field at the reflecting surface of folded arrayed waveguide grating multiplexers |
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| Authors: | AA Bernussi LG de Peralta M Knapczyk R Gale H Temkin |
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| Affiliation: | Dept. of Electr. & Comput. Eng., Texas Tech Univ., Lubbock, TX, USA; |
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| Abstract: | We describe the use of a reflective arrayed waveguide grating multiplexer in conjunction with a digital micromirror device to modulate the electric field distribution in the grating. Modulation of the electric field is accomplished by turning individual digital mirrors on and off. By imposing a reconfigurable grating superstructure on the digital mirror array, we can change the free-spectral range of the device and alter the overall transmission spectra. The experimental results are in excellent agreement with model calculations. This type of a device is expected to be useful in generation of reconfigurable sequences of ultrashort pulses. |
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