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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 16, Iss. 8 — Aug. 1, 1999
  • pp: 1220–1223

Generation of a broad amplified spectrum in a femtosecond terawatt Ti:sapphire laser by a long-wavelength injection method

Yong Ho Cha, Young Il Kang, and Chang Hee Nam  »View Author Affiliations


JOSA B, Vol. 16, Issue 8, pp. 1220-1223 (1999)
http://dx.doi.org/10.1364/JOSAB.16.001220


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Abstract

A long-wavelength injection method is proposed that will yield a broad amplified spectrum in a femtosecond terawatt Ti:sapphire laser. By injecting a seed pulse on the red side of the gain peak and amplifying it to a saturated fluence level, we could significantly compensate for the spectral narrowing that is due to the gain-narrowing effect by use of the amplifying characteristics of a positively chirped pulse in a gain-saturated regime, and 20-fs, 3-TW pulses could be demonstrated from a Ti:sapphire laser with two multipass amplifiers.

© 1999 Optical Society of America

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
(320.1590) Ultrafast optics : Chirping

Citation
Yong Ho Cha, Young Il Kang, and Chang Hee Nam, "Generation of a broad amplified spectrum in a femtosecond terawatt Ti:sapphire laser by a long-wavelength injection method," J. Opt. Soc. Am. B 16, 1220-1223 (1999)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-16-8-1220


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References

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