| 摘要 |
An optical data compressor includes a sequence of N compression stages for compressing a pulse train having a repetition time T and a repetition rate f to a pulse train having a repetition time t, where t is much less than T. Each compression stage includes a first optical path with a first gate and a delay element exhibiting a time delay (T-t)j, where j is a sequence number of the respective compression stage. The optical data compressor further includes: a second optical path with a second gate; a first coupler for inducing the pulse train onto the first and second optical paths; and a gating signal generator that is synchronized with the pulse train. The gating signal generator applies gating/non-gating signals, at a repetition rate of f/2j, to the first gate and complementary non-gating/gating signals having a repetition rate of f/2j to the second gate. A second coupler combines outputs from the first and second optical paths and applies the combined optical output to a next in the sequence the N compression stages, if any.
|
