Mosfet through silicon modulator and method
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United States of America Patent
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Nov 27, 2001
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N/A
app pub date -
Dec 30, 1998
filing date -
Dec 30, 1998
priority date (Note) -
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Abstract
Through silicon optical modulators (TSOM) formed in a silicon integrated circuit comprise a grating array of MOSFET elements. The TSOM's provide optical phase shifts from different areas which contrast with one another coherently. Phase modulated optical beams reflected from the grating interfere with one another and allow the modulation to be easily detected off-chip. In one embodiment, a two dimensional array has a gate structure which is used to modulate a light beam by forming accumulation layers. In another embodiment, a one dimensional array is formed using parallel gate strips, where alternate gates are used as reference reflectors.
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