High-energy pulse compression by use of negative phase shifts produced by the cascade χ(2):χ(2) nonlinearity
Optics Letters, Vol. 24, Issue 23, pp. 1777-1779 (1999)
http://dx.doi.org/10.1364/OL.24.001777
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Abstract
We report a simple optical pulse-compression technique based on quadratic nonlinear media. Negative nonlinear phase shifts are generated by phase-mismatched second-harmonic generation, and the phase-modulated pulses are then compressed by propagation through materials with normal dispersion. Millijoule-energy pulses from a Ti:sapphire amplifier are compressed from 120 to 30 fs, and calculations indicate that compression ratios of >10 are realistically achievable by use of this approach with optimal materials. The insertion loss of the compressor can be less than 10% of the pulse energy, and scaling to higher pulse energies will be straightforward.
© 1999 Optical Society of America
[Optical Society of America ]
OCIS Codes
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(320.5520) Ultrafast optics : Pulse compression
(320.7110) Ultrafast optics : Ultrafast nonlinear optics
Citation
Xiang Liu, Liejia Qian, and Frank Wise, "High-energy pulse compression by use of negative phase shifts produced by the cascade χ(2):χ(2) nonlinearity," Opt. Lett. 24, 1777-1779 (1999)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-24-23-1777
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