Abstract

We demonstrate optical parametric chirped pulse amplification (OPCPA) at 1-kHz repetition rate in periodically poled stoichiometric LiTaO3 (PPSLT) with 1 mol % MgO doping. Diode pumping was used both for the fiber laser generating the femtosecond seed pulses and the nanosecond laser/amplifier employed as a pump source. The high gain (≈63 dB) and large bandwidth (20 nm) obtained for single-stage non-degenerate OPCPA operation provide a compact and efficient solution for amplification of ultrashort pulses near 1.57 µm. Stretched femtosecond pulses could be amplified up to 39.5 µJ in a 7-mm long, 2-mm thick sample of PPSLT. The pulse duration of the amplified signal pulses (FWHM) after recompression amounted to 315 fs.

© 2004 Optical Society of America

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References

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Appl. Phys. B

R. Butkus, R. Danielius, A. Dubietis, A. Piskarskas, and A. Stabinis, �??Progress in chirped pulse optical parametric amplifiers,�?? Appl. Phys. B 79, 693-700 (2004).
[CrossRef]

Appl. Phys. Lett.

I. Jovanovic, J. R. Schmidt, and C. A. Ebbers, �??Optical parametric chirped-pulse amplification in periodically poled KTiOPO4 at 1053 nm,�?? Appl. Phys. Lett. 83, 4125-4127 (2003).
[CrossRef]

K. Kitamura, Y. Furukawa, K. Niwa, V. Gopalan, and T. E. Mitchell, �??Crystal growth and low coercive field 180° domain switching characteristics of stoichiometric LiTaO3,�?? Appl. Phys. Lett. 73, 3073-3075 (1998).
[CrossRef]

N. E. Yu, S. Kurimura, Y. Nomura, M. Nakamura, K. Kitamura, J. Sakuma, Y. Otani, and A. Shiratori, �??Periodically poled near-stoichiometric lithium tantalate for optical parametric oscillation,�?? Appl. Phys. Lett. 84, 1662-1664 (2004).
[CrossRef]

CLEO 2000

A. Galvanauskas, A. Hariharan, F. Raksi, K. K. Wong, D. Harter, G. Imeshev, and M. M. Fejer, �??Generation of diffraction-limited femtosecond beams using spatially-multimode nanosecond pump sources in parametric chirped pulse amplification systems,�?? in Conference on Lasers and Electro Optics, Paper CThB4, Technical Digest (Optical Society of America, Washington, D.C., 2000), pp. 394-395.

CLEO/Pacific Rim 2003

L. H. Lin, Z. Z. Xu, X. D. Yang, R. X. Li, H. H. Lu, W. Y. Wang, Y. X. Leng, Z. Q. Zhang, Y. H. Jiang, S. Q. Jin, D. J. Ying, W. Q. Zhang, �??Recent progress in table-top multiterawatt laser systems at SIOM,�?? CLEO/Pacific Rim 2003. The 5th Pacific Rim Conference on Lasers and Electro-Optics, Proceedings Vol. I, Taipei, Taiwan, Dec. 15-19, 2003, p. 356.

Electron. Lett.

F. Rotermund, V. Petrov, F. Noack, V. Pasiskevicius, J. Hellström, F. Laurell, H. Hundertmark, P. Adel, and C. Fallnich, �??Compact all-diode-pumped femtosecond laser source based on chirped pulse optical parametric amplification in periodically poled KTiOPO4,�?? Electron. Lett. 38, 561-563 (2002).
[CrossRef]

J. Cryst. Growth

Y. Furukawa, K. Kitamura, E. Suzuki, and K. Niva, �??Stoichiometric LiTaO3 single crystal growth by double crucible Czochralski method using automatic powder supply system,�?? J. Cryst. Growth 197, 889-895 (1999).
[CrossRef]

J. Opt. Soc. Am. B

Jpn. J. Appl. Phys.

N. E. Yu, S. Kurimura, Y. Nomura, and K. Kitamura, �??Stable high-power green light generation with thermally conductive periodically poled stoichiometric lithium tantalate,�?? Jpn. J. Appl. Phys. 43, L1265-L1267 (2004).
[CrossRef]

V. Petrov, F. Noack, F. Rotermund, V. Pasiskevicius, A. Fragemann, F. Laurell, H. Hundertmark, P. Adel, and C. Fallnich, �??Eficient all-diode-pumped double stage femtosecond optical parametric chirped pulse amplification at 1-kHz with periodically poled KTiOPO4,�?? Jpn. J. Appl. Phys. 42, L1327-L1329 (2003).
[CrossRef]

Opt. Commun.

A. Dubieties, G. Jonusauskas, and A. Piskarskas, �??Powerful femtosecond pulse generation by chirped and stretched pulse parametric amplification in BBO crystal,�?? Opt. Commun. 88, 437-440 (1992).
[CrossRef]

Opt. Lett.

Trends in Optics and Photonics

A. Galvanauskas, A. Hariharan, D. Harter, �??Diode pumped parametric chirped pulse amplification system with mJ output energies,�?? in Trends in Optics and Photonics Vol. 43, Twelfth International Conference on Ultrafast Phenomena, Paper WE6-1, Technical Digest (Optical Society of America, Washington, DC, 2000), pp. 617-619.

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Figures (5)

Fig. 1.
Fig. 1.

Temperature dependence of the QPM period for two different seed wavelengths λs at a fixed pump wavelength of 1064 nm.

Fig. 2.
Fig. 2.

Experimental set-up of the single-stage PPSLT-based OPCPA

Fig. 3.
Fig. 3.

Signal pulse energy obtained by OPCPA using a single stage of PPSLT with a QPM period of 30.7 µm at room temperature.

Fig. 4.
Fig. 4.

Seed spectrum measured behind the stretcher (black line) and amplified signal spectra obtained with the 30.7 µm (green line) and 31.0 µm (blue line) QPM-period PPSLT samples.

Fig. 5.
Fig. 5.

Autocorrelation trace of the amplified signal pulses after recompression.

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