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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 1, Iss. 4 — Apr. 20, 2003
  • pp: 225–227

A compact Ti:sapphire femtosecond pulse amplifier without stretcher at high repetition rate

Guanghua Cheng, Lianjun Yu, Yishan Wang, Qing Liu, Guofu Chen, and Wei Zhao  »View Author Affiliations


Chinese Optics Letters, Vol. 1, Issue 4, pp. 225-227 (2003)


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Abstract

We report a simple approach to amplify Ti:sapphire femtosecond pulses to moderate energy levels by a chirped regenerative amplifier. The seed pulses are broaden naturally because of the material dispersion of system components in regenerative cavity. The off-focusing Ti:sapphire crystal avoids effectively the optical damage. It sustains amplification over a wavelength range from 775 nm to more than 810 nm with a birefringent filter and an oscillation bandwidth of 7.7 nm, and produces 2.1 ps chirped output pulse energy of 100 ?J at 1.1-mJ pumping energy. This system shows good performances in stability and efficiency with the benefits of two thin-film polarizers and TEM00 mode pumping laser.

© 2005 Chinese Optics Letters

OCIS Codes
(140.3280) Lasers and laser optics : Laser amplifiers
(140.3590) Lasers and laser optics : Lasers, titanium
(140.7090) Lasers and laser optics : Ultrafast lasers

Citation
Guanghua Cheng, Lianjun Yu, Yishan Wang, Qing Liu, Guofu Chen, and Wei Zhao, "A compact Ti:sapphire femtosecond pulse amplifier without stretcher at high repetition rate," Chin. Opt. Lett. 1, 225-227 (2003)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-1-4-225

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