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Chinese Optics Letters

Chinese Optics Letters


  • Vol. 6, Iss. 11 — Nov. 1, 2008
  • pp: 841–844

Laser pulse spectral shaping based on electro-optic modulation

Yanhai Wang, Jiangfeng Wang, You'en Jiang, Yan Bao, Xuechun Li, and Zunqi Lin  »View Author Affiliations

Chinese Optics Letters, Vol. 6, Issue 11, pp. 841-844 (2008)

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A new spectrum shaping method, based on electro-optic modulation, to alleviate gain narrowing in chirped pulse amplification (CPA) system, is described and numerically simulated. Near-Fourier transform-limited seed laser pulse is chirped linearly through optical stretcher. Then the chirped laser pulse is coupled into integrated waveguide electro-optic modulator driven by an aperture-coupled-stripline (ACSL) electrical-waveform generator, and the pulse shape and amplitude are shaped in time domain. Because of the direct relationship between frequency interval and time interval of the linearly chirped pulse, the laser pulse spectrum is shaped correspondingly. Spectrum-shaping examples are modeled numerically to determine the spectral resolution of this technique. The phase error introduced in this method is also discussed.

© 2008 Chinese Optics Letters

OCIS Codes
(140.3300) Lasers and laser optics : Laser beam shaping
(300.6530) Spectroscopy : Spectroscopy, ultrafast
(350.2660) Other areas of optics : Fusion

Yanhai Wang, Jiangfeng Wang, You'en Jiang, Yan Bao, Xuechun Li, and Zunqi Lin, "Laser pulse spectral shaping based on electro-optic modulation," Chin. Opt. Lett. 6, 841-844 (2008)

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