Advances in commercial spectral phase measurement devices

The shortcomings in complex femtosecond pulse measurement of conventional spectral phase interferometry for direct electric-field reconstruction (SPIDER) are commented in this paper. To solve the problem, we propose an improved version of SPIDER, where single replica of the unknown pulse upconverts synchronously with two frequency-shifted narrow-banded long pulses. With the introduction of a suitable small delay between the upconverted pulses, the spectral phase of the unknown pulse can be directly calculated from the fringe-free spectra and Fourier-transform filtering is not required. The results of numerical simulation show that the accuracy of the new method in complex pulse measurement is higher than conventional SPIDER.

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Spectral phase measurement of attosecond pulses using the quantum beat between theP1∕2andP3∕2levels of alkali-metal atoms

Physical Review A ◽

10.1103/physreva.76.033810 ◽

2007 ◽

Vol 76 (3) ◽

Cited By ~ 8

Author(s):

Ryuji Itakura

Keyword(s):

Alkali Metal ◽

Phase Measurement ◽

Spectral Phase ◽

Quantum Beat ◽

Metal Atoms ◽

Attosecond Pulses

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Phase measurement in long chirped pulses with spectral phase jumps

Optics Express ◽

10.1364/oe.22.015918 ◽

2014 ◽

Vol 22 (13) ◽

pp. 15918

Author(s):

Razvan G. Ungureanu ◽

Gabriel V. Cojocaru ◽

Romeo A. Banici ◽

Daniel Ursescu

Keyword(s):

Phase Measurement ◽

Spectral Phase ◽

Chirped Pulses

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Spectral phase measurement of sub-picosecond optical parametric oscillator

LEOS 2000. 2000 IEEE Annual Meeting Conference Proceedings. 13th Annual Meeting. IEEE Lasers and Electro-Optics Society 2000 Annual Meeting (Cat. No.00CH37080) ◽

10.1109/leos.2000.893908 ◽

2002 ◽

Author(s):

P.J. Phillips ◽

M. Mazilu ◽

S. Das ◽

M. Ebrahimzadeh ◽

A. Miller

Keyword(s):

Optical Parametric Oscillator ◽

Phase Measurement ◽

Spectral Phase ◽

Parametric Oscillator ◽

Optical Parametric

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Direct spectral phase measurement with Spectral Interferometry Resolved in Time Extra Dimensional

Review of Scientific Instruments ◽

10.1063/1.3405983 ◽

2010 ◽

Vol 81 (5) ◽

pp. 053105 ◽

Cited By ~ 5

Author(s):

D. Bigourd ◽

J. Luce ◽

E. Mazataud ◽

E. Hugonnot ◽

C. Rouyer

Keyword(s):

Phase Measurement ◽

Spectral Phase ◽

Spectral Interferometry

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Research on Communication Lines Detection in WAMS

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.733.771 ◽

2015 ◽

Vol 733 ◽

pp. 771-774

Author(s):

Bing Kun Gao ◽

Wu Feng Yue ◽

Peng Liu

Keyword(s):

Phase Measurement ◽

Rapid Development ◽

Simulation Software ◽

Area Measurement ◽

Communication Line ◽

Communications Networks ◽

Wide Area Measurement System ◽

Traffic Characteristic ◽

Measurement Devices ◽

Communication Lines

With the application of synchronized phase measurement devices and the rapid development of communications networks, WAMS is gradually becoming the focus of domestic and international science and technology researchers. Based on the OPNET simulation software, this article looks into the communication line of WAMS and conducts a study on WAMS link bandwidth and designs a new method of detecting traffic characteristic. Finally, it proves the conclusion that communication line traffic characteristic can be improved as bandwidth increases. The results will have a higher value for the design of wide area measurement system.

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