Pulse interleaver
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United States of America Patent
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Apr 2, 2002
Grant Date -
N/A
app pub date -
Dec 13, 1999
filing date -
Dec 13, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A pulse interleaver splits an input pulse train into at least two optical branches (20,22). A first one of the branches (20) carries a first signal, and is terminated with a mirror (24) and a device (26) for manipulating the state of polarization. The reflected signal is re-combined at a combiner (18) with a second signal on a second one of the branches (22). The effective path lengths for the first and second signals between the input and the combiner are selected such that the input pulse train is interleaved with itself thereby providing an output with increased frequency. The mirror (24) and the device for manipulating the state of polarization (26) provide a predetermined relationship between the polarization of pulses in the output pulse train derived from an individual pulse of the input pulse train.
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