D. A. Smith, J. J. Johnson, A. d'Alessandro and J. E. Baran,
The integrated acousto-optic filter (AOF) has found many applications in optical signal processing, from fast scanning optical spectroscopy to routing in wavelength-division-multiplexed (WDM) systems, to femtosecond pulse shaping. Devices fabricated by integrated optical and acoustic technology on x-cut LiNbO3 have the ability to filter, or to switch between output ports, one or many independent nanometer-wide wavelength channels.
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