Optical isolator device, and method of making same
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United States of America Patent
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Feb 5, 2008
Grant Date -
May 17, 2007
app pub date -
Jan 10, 2007
filing date -
Apr 5, 2004
priority date (Note) -
Expired
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Abstract
The present invention is generally directed to an optical isolator device, and various methods of making same. In one illustrative embodiment, the method comprises obtaining a single SOI substrate, the SOI substrate having an active layer comprised of silicon and a buried insulation layer, forming a doped layer of silicon above the active layer of the SOI substrate, forming first and second isolated regions in at least the doped layer of silicon, forming a photon generating device in the first isolated region, and forming a photon receiving device in the second isolated region. In one illustrative embodiment, the device comprises a substrate comprised of a bulk layer of silicon, a buried insulation layer formed on the bulk silicon layer, and a doped layer of silicon positioned above the buried insulating layer, first and second isolated regions formed in the doped layer of silicon, a photon generating device formed in the first isolated region, and a photon receiving device formed in the second isolated region.
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