Variable blazed grating based signal processing
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United States of America Patent
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Apr 13, 2004
Grant Date -
N/A
app pub date -
Feb 2, 2001
filing date -
Feb 2, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In one aspect of the invention, an optical switching element includes a variable blazed grating operable to receive and reflect one or more input signals while the grating remains in a first position and to receive and diffract one or more input signals while the grating remains in a second position. The switching element further includes a first circulator operable to receive from the variable blazed grating a first output signal traveling approximately along the path of an input signal to the grating but in an approximately opposite direction to that input signal, and to redirect the first output signal from the path of the input signal.
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