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Reconfigurable sampling of the electric field at the reflecting surface of folded arrayed waveguide grating multiplexers

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5 Author(s)
Bernussi, A.A. ; Dept. of Electr. & Comput. Eng., Texas Tech Univ., Lubbock, TX, USA ; Grave de Peralta, L. ; Knapczyk, M. ; Gale, R.
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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.

Published in:

Photonics Technology Letters, IEEE  (Volume:16 ,  Issue: 10 )