Tilt-able grating plane for improved crosstalk in 1×N blaze switches
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United States of America Patent
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Aug 9, 2005
Grant Date -
N/A
app pub date -
Dec 23, 2002
filing date -
Dec 23, 2002
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Abstract
A light modulator includes elongated elements arranged parallel to each other. Each elongated element includes a light reflective planar surface with the light reflective planar surfaces configured in a first grating plane. A support structure is coupled to the elongated elements to maintain a position of the elongated elements relative to each other and to enable movement of each elongated element in a direction normal to the first grating plane. The support structure enables movement between a first modulator configuration and a second modulator configuration. In the first modulator configuration, the elongated elements act to reflect an incident light as a plane mirror. In the second modulator configuration, the elongated elements form a stepped blaze configuration along a second grating plane lying at a grating angle to the first grating plane and act to diffract the incident light into at least two diffraction orders.
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