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5 September 2014Formalization and experimental evaluation of cavity-enhanced holographic readout
We formalize the theoretical effects of optical resonator enhancement on diffraction efficiency, read rate, and write rate
of plane wave holograms, with a view toward page based holographic data storage. Trade-offs in cavity enhancement are
also examined. Theory predicts ~160% of enhancement in diffraction efficiency is feasible when power loss of the
hologram is ~8% and diffraction efficiency is ~8%. We report experimental verification of ~30% enhancement of
diffraction efficiency for a hologram written in 0.03% Fe:LiNbO3 (Deltronic Crystal Industries, Inc.) with a 532 nm
wavelength, pulsed, DPSS, Nd-YAG, laser and read by a red He-Ne laser. The Bragg selectivity width under the cavityenhanced
readout is experimentally confirmed to be unaffected by cavity enhancement, and it agrees with theoretical
prediction.
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Bo E. Miller, Yuzuru Takashima, "Formalization and experimental evaluation of cavity-enhanced holographic readout," Proc. SPIE 9201, Optical Data Storage 2014, 920104 (5 September 2014); https://doi.org/10.1117/12.2061448