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Autocorrelation of ultrashort pulses at 1.5 µm based on nonlinear response of silicon photodiodes

Autocorrelation of ultrashort pulses at 1.5 µm based on nonlinear response of silicon photodiodes

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Measurements of the autocorrelation function of picosecond pulses at 1.5 µm from an erbium-doped fibre laser and amplifier have been carried out, exploiting a nonlinear intensity-dependent response in a silicon photodiode. The same photodiode is used both for the generation and the detection of the autocorrelation signal, allowing the construction of a compact and inexpensive optical autocorrelator.

Inspec keywords: silicon; high-speed optical techniques; optical correlation; correlators; elemental semiconductors; optical variables measurement; p-i-n photodiodes

Other keywords: signal detection; optical autocorrelator; autocorrelation function; optical pulses; nonlinear response; signal generation; 1.5 micron; Er-doped fibre laser; Si; Er-doped fibre amplifier; ultrashort pulse measurement; Si photodiodes

Subjects: Optical instruments and techniques; Optical variables measurement; Ultrafast optical techniques; Photoelectric devices

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