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Opt Lett. 2000 Apr 15;25(8):524-6.

Reconfigurable time-domain spectral shaping of an optical pulse stretched by a fiber Bragg grating.


We demonstrate a method for spectrally shaping optical pulses that is readily reconfigurable and can produce variable filter functions. This practical technique relies on a compact and robust 3.86-m-long linearly chirped fiber Bragg grating that chromatically disperses the pulse to ~30 ns. We then shape the pulse envelope, and thus the pulse spectrum, with a programmable arbitrary waveform generator and an amplitude modulator to obtain several filter functions.


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