Apparatus for providing timing jitter tolerant optical modulation of a first signal by a second signal
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United States of America Patent
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Feb 21, 2006
Grant Date -
Aug 12, 2004
app pub date -
Mar 15, 2002
filing date -
Mar 16, 2001
priority date (Note) -
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Abstract
Apparatus for providing timing jitter tolerant optical modulation of a first signal by a second signal, the first signal having a first wavelength, the second signal including a plurality of second signal pulses having a second pulse shape and a second wavelength. The apparatus includes a first signal input port, a second signal input port, a coupler, a grating and a non-linear optical device. The apparatus is configured to direct the second signal at the second signal input port to the non-linear optical device via the coupler and the grating, and to direct the first signal at the first signal input port to the non-linear optical device. The grating is a superstructured fibre Bragg grating that converts the second signal pulses into intermediary pulses each having an intermediary pulse shape. The intermediary pulse shape is such that it provides a switching window within the non-linear optical device.
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