Terahertz bandwidth RF spectrum analysis of femtosecond pulses using a chalcogenide chip

M. D. Pelusi; T. D. Vo; F. Luan; S. J. Madden; D. Y. Choi; D. A.P. Bulla; B. Luther-Davies; B. J. Eggleton

doi:10.1364/OE.17.009314

Terahertz bandwidth RF spectrum analysis of femtosecond pulses using a chalcogenide chip

M. D. Pelusi, T. D. Vo, F. Luan, S. J. Madden, D. Y. Choi, D. A.P. Bulla, B. Luther-Davies, B. J. Eggleton

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Abstract

We report the first demonstration of the use of an RF spectrum analyser with multi-terahertz bandwidth to measure the properties of femtosecond optical pulses. A low distortion and broad measurement bandwidth of 2.78 THz (nearly two orders of magnitude greater than conventional opto-electronic analyzers) was achieved by using a 6 cm long As2S3 chalcogenide waveguide designed for high Kerr nonlinearity and near zero dispersion. Measurements of pulses as short as 260 fs produced from a soliton-effect compressor reveal features not evident from the pulse's optical spectrum. We also applied an inverse Fourier transform numerically to the captured data to re-construct a time-domain waveform that resembled pulse measurement obtained from intensity autocorrelation.

Original language	English
Pages (from-to)	9314-9322
Number of pages	9
Journal	Optics Express
Volume	17
Issue number	11
DOIs	https://doi.org/10.1364/OE.17.009314
Publication status	Published - 25 May 2009

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abstract = "We report the first demonstration of the use of an RF spectrum analyser with multi-terahertz bandwidth to measure the properties of femtosecond optical pulses. A low distortion and broad measurement bandwidth of 2.78 THz (nearly two orders of magnitude greater than conventional opto-electronic analyzers) was achieved by using a 6 cm long As2S3 chalcogenide waveguide designed for high Kerr nonlinearity and near zero dispersion. Measurements of pulses as short as 260 fs produced from a soliton-effect compressor reveal features not evident from the pulse's optical spectrum. We also applied an inverse Fourier transform numerically to the captured data to re-construct a time-domain waveform that resembled pulse measurement obtained from intensity autocorrelation.",

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AU - Pelusi, M. D.

AU - Vo, T. D.

AU - Luan, F.

AU - Madden, S. J.

AU - Choi, D. Y.

AU - Bulla, D. A.P.

AU - Luther-Davies, B.

AU - Eggleton, B. J.

PY - 2009/5/25

Y1 - 2009/5/25

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AB - We report the first demonstration of the use of an RF spectrum analyser with multi-terahertz bandwidth to measure the properties of femtosecond optical pulses. A low distortion and broad measurement bandwidth of 2.78 THz (nearly two orders of magnitude greater than conventional opto-electronic analyzers) was achieved by using a 6 cm long As2S3 chalcogenide waveguide designed for high Kerr nonlinearity and near zero dispersion. Measurements of pulses as short as 260 fs produced from a soliton-effect compressor reveal features not evident from the pulse's optical spectrum. We also applied an inverse Fourier transform numerically to the captured data to re-construct a time-domain waveform that resembled pulse measurement obtained from intensity autocorrelation.

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Terahertz bandwidth RF spectrum analysis of femtosecond pulses using a chalcogenide chip

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