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Wideband amplification using orthogonally polarized pulse trapping in birefringent fibers

Eiji Shiraki1, Norihiko Nishizawa

  • 1Division of Advanced Science and Biotechnology, Osaka University, Suita, Osaka 565-0871, Japan. shiraki@photonics.mls.eng.osaka-u.ac.jp

Optics Express
|April 15, 2010
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Bandpass Sampling01:17

Bandpass Sampling

In signal processing, bandpass sampling is an effective technique for sampling signals that have most of their energy concentrated within a narrow frequency band. This type of signal is known as a bandpass signal. The key principle of bandpass sampling involves sampling the signal at a rate that is greater than twice the signal's bandwidth to prevent aliasing.
A bandpass signal has a spectrum with a lower frequency limit, denoted as ω1, and an upper frequency limit, denoted as ω2. The spectrum...