| 摘要 |
A device and method for quantifying the amount of jitter experienced by an optical data pulse. During transmission data pulses may suffer jitter. Their arrival time at a node may be temporally offset from its predicted arrival time. Data pulses are timed so that they may be received at a detector disposed downstream of said node at a predetermined time. The device including an optical AND gate, which has a first input arranged to receive a chirped pulse having a duration T, and whose wavelength varies in a monotonically over the duration of the pulse, the node having a second input arranged to receive a second data pulse, wherein said node includes an optical gate arranged to generate an output pulse in response to the chirped pulse and said data pulse received at said first and second inputs, respectively, having a wavelength dependent upon the time at which said data pulse is received at said second input.
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