نتایج جستجو برای: optical delay line
تعداد نتایج: 785343 فیلتر نتایج به سال:
The power spectrum of the optical intensity at the output of a single-mode-fiber recirculating delay line driven by a multimode semiconductor laser is shown to exhibit a spectral structure with notches at zero frequency as well as at other multiples of 1/(loop delay). A theoretical model based on laser phase noise is suggested to explain the experimental data.
The optical fiber used as a microwave delay line exhibits high stability and low noise and makes accessible a long delay (& 100 μs) in a wide bandwidth (≈ 40 GHz, limited by the optronic components). Hence, it finds applications as the frequency reference in microwave oscillators and as the reference discriminator for the measurement of phase noise. The fiber is suitable to measure the oscillat...
We present two approaches that aim at reducing the loss rates in an optical buffer having access to a single outgoing channel. As opposed to a conventional electronic buffer, such a system consisting of a number of fibre delay lines (FDLs) can only realize a discrete set of delay values to resolve contention. This leads to voids on the outgoing channel, which increases the losses. Traditionally...
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