Multichannel waveguide devices using collinear acoustooptic interaction

Status of Leaky Mode Holography

“…Leaky mode modulators for holographic video were most strongly influenced by the work of Proklov and Korablev, who described collinear arrays for integrated spectrum analyzers [2], and by Tsai et al, who extended leaky mode systems by cascading Bragg [3] and leaky mode interactions to create a 2D scanner [4]. Tsai's work led researchers at MIT to attempt to use this second degree of freedom to eliminate the need for problematic fast horizontal scanning mirrors [5].…”

Frequency division color characterization apparatus for anisotropic leaky mode light modulators

“…5 Anisotropic leaky mode modulators can be fabricated inexpensively and possess channels that are ten times more densely packed than existing holographic displays. 6 devices exhibit larger angular deflections, polarization rotation of signal light, and frequency division multiplexing of color. These characteristics make leaky mode couplers promising devices for scanned aperture holographic video displays and motivate the desire to carefully characterize their limitations and useful properties (affordances).…”

“…6,7 The leaky mode output can be scanned and encoded with holographic information and the leaky mode interaction, in general, occurs at different surface acoustic wave spatial frequencies for different illumination wavelengths. The spatial frequency of the surface acoustic wave is directly related to the input RF frequency as given by…”