Wavelength multiplexed two dimensional image transmission through single mode optical fiber
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United States of America Patent
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May 24, 1994
Grant Date -
N/A
app pub date -
Feb 18, 1992
filing date -
Feb 18, 1992
priority date (Note) -
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Abstract
An apparatus and method are provided for transmitting two-dimensional images through a single mode optical fiber. Light from a broadband source is dispersed into component wavelengths, spatially modulated to contain an image, collected for multiplexing in a single mode optical transmission fiber, transmitted through the single mode fiber, and demultiplexed into its component wavelengths to reproduce the transmitted image. The two-dimensional dispersing and collecting elements may be realized using thin film channel waveguides having arrays of optical gratings. Because the dispersive element at the receiving (output) end of the transmission fiber must reproduce the dispersal pattern used at the source, the information transmitting device may be used for data encryption and decryption.
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